Springboot基础学习
Springboot
1、介绍
Spring Boot是由Pivotal团队提供的全新框架，其设计目的是用来简化新Spring应用的初始搭建以及开发过程。该框架使用了特定的方式来进行配置，从而使开发人员不再需要定义样板化的配置。
1.1、依赖方面
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starterartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
<scope>testscope>
dependency>
dependencies>
1.2、修改Springboot启动图标
在resources下创建banner.txt文件，将要替换的内容复制进去即可
_
\`*-.
) _`-.
. : `. .
: _ ' \
; *` _. `*-._
`-.-' `-.
; ` `.
:. . \
. \ . : .-' .
' `+.; ; ' :
: ' | ; ;-.
; ' : :`-: _.`* ;
.*' / .*' ; .*`- +' `*'
`*-* `*-* `*-*'
1.3、Springboot自动装配原理分析
- SpringBoot启动会加载大量的自动配置类
- 我们看我们需要的功能有没有在SpringBoot默认写好的自动配置类当中
- 我们再来看这个自动配置类中到底配置了哪些组件；（只要我们要用的组件存在在其中，我们就不需要再手动配置了）
- 给容器中自动配置类添加组件的时候，会从properties类中获取某些属性。我们只需要在配置文件中指定这些属性的值即可；
xxxxAutoConfigurartion：自动配置类；给容器中添加组件
xxxxProperties:封装配置文件中相关属性；
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Springboot的application.properties中配置
debug=true:（输出我们已经配置的组件）
Positive matches:（自动配置类启用的：正匹配）
Negative matches:（没有启动，没有匹配成功的自动配置类：负匹配）
Unconditional classes: （没有条件的类）
2、JSR303校验
2.1、yaml语法
- 空格不能省略，键值对中间必须要有一个空格
- 以缩进来控制层级关系，只要是左边对齐的一列数据都是同一个层级的。
- 属性和值的大小写都是十分敏感的。
2.2、yaml配置文件格式
server：
prot: 8080
2.3、yaml配置bean属性
person:
name: luffy${random.uuid}
age: ${random.int}
happy: false
birth: 2020/12/2
# hello: haha
maps: {k1: v1,k2: v2}
lists:
- code
- music
- girl
dog:
firstName: ${person.hello:hehe}小黑
age: 3
2.4、yaml绑定配置文件
@ConfigurationProperties(prefix = "person")
public class Person {
private String name;
private Integer age;
private Boolean happy;
private Date birth;
private Map<String,Object> maps;
private List<Object> lists;
private Dog dog;
}
2.5、测试yaml
@Autowired
private Person person;
@Test
void contextLoads() {
System.out.println(person);
}
2.6、松散绑定
yml中的first-name = bean中的firstName
2.7、数据校验
@Validated
public class person{
// JSR303常用校验
@NotNull(message="名字不能为空")
private String userName;
@Max(value=120,message="年龄最大不能查过120")
private int age;
@Email(message="邮箱格式错误")
private String email;
}
// 空检查
@Null 验证对象是否为null
@NotNull 验证对象是否不为null, 无法查检长度为0的字符串
@NotBlank 检查约束字符串是不是Null还有被Trim的长度是否大于0,只对字符串,且会去掉前后空格.
@NotEmpty 检查约束元素是否为NULL或者是EMPTY.
// Booelan检查
@AssertTrue 验证 Boolean 对象是否为 true
@AssertFalse 验证 Boolean 对象是否为 false
// 长度检查
@Size(min=, max=) 验证对象（Array,Collection,Map,String）长度是否在给定的范围之内
@Length(min=, max=) string is between min and max included.
// 日期检查
@Past 验证 Date 和 Calendar 对象是否在当前时间之前
@Future 验证 Date 和 Calendar 对象是否在当前时间之后
@Pattern 验证 String 对象是否符合正则表达式的规则
2.8、application.yml可以安装的位置
优先级：
- file:config/appplication.yml
- file:application.yml
- resources:/config/application.yml
- resources:application.yml
2.9、yml多配置
server:
port: 8080
# 选择使用哪些配置
spring:
profiles:
active: dev # 激活dev配置
---
server:
port: 8081
spring:
profiles: test
---
server:
port: 8082
spring:
profiles: dev
3、web开发
3.1、静态资源
源码
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
if (!this.resourceProperties.isAddMappings()) {
logger.debug("Default resource handling disabled");
return;
}
Duration cachePeriod = this.resourceProperties.getCache().getPeriod();
CacheControl cacheControl = this.resourceProperties.getCache().getCachecontrol().toHttpCacheControl();
// 第一种方式 webjars
if (!registry.hasMappingForPattern("/webjars/**")) {
customizeResourceHandlerRegistration(registry.addResourceHandler("/webjars/**")
.addResourceLocations("classpath:/META-INF/resources/webjars/")
.setCachePeriod(getSeconds(cachePeriod)).setCacheControl(cacheControl));
}
// 第二种方式
String staticPathPattern = this.mvcProperties.getStaticPathPattern();
if (!registry.hasMappingForPattern(staticPathPattern)) {
customizeResourceHandlerRegistration(registry.addResourceHandler(staticPathPattern)
.addResourceLocations(getResourceLocations(this.resourceProperties.getStaticLocations()))
.setCachePeriod(getSeconds(cachePeriod)).setCacheControl(cacheControl));
}
}
webjars方法（不推荐）
- 需要导入需要使用的静态资源例如Jquery的maven依赖
- 导入的静态资源在该依赖的META-INF/resources/webjars下
- 访问的路径跟随http://localhost:8080/webjars/就可以使用
推荐方法
/**：在http://localhost:8080/访问的静态资源会获取以下路径的静态资源
优先级排序：
- classpath：/META-INF/resources/
- classpath：/resources/
- classpath：/static/（默认创建）
- classpath：/public/
在application.properties自己配置静态资源路径，那么系统规定的路径则不生效
spring.mvc.static-path-pattern=/hello/,classpath:/luffy/
3.2、首页
在对应的静态资源路径下创建index.html即可
源码
private Resource getIndexHtml(String location) {
return this.getIndexHtml(this.resourceLoader.getResource(location));
}
private Resource getIndexHtml(Resource location) {
try {
Resource resource = location.createRelative("index.html");
if (resource.exists() && resource.getURL() != null) {
return resource;
}
} catch (Exception var3) {
}
return null;
}
public interface ResourceLoader {
String CLASSPATH_URL_PREFIX = "classpath:";
Resource getResource(String location);
@Nullable
ClassLoader getClassLoader();
}
3.3、网页图标定制
新版本代码被更改
以下是旧版本的方法
- 找一张图片后缀名改为ico
- 放在public静态文件夹下即可
- 设置application.properties关闭默认图标的属性
- spring.mvc.favicon.enabled=false
具体看源码，这里不细说
3.4、thymeleaf模板引擎
thymeleaf模板引擎用的界面都放在templates下
源码
@ConfigurationProperties(prefix = "spring.thymeleaf")
public class ThymeleafProperties {
private static final Charset DEFAULT_ENCODING = StandardCharsets.UTF_8;
// 前缀
public static final String DEFAULT_PREFIX = "classpath:/templates/";
// 后缀
public static final String DEFAULT_SUFFIX = ".html";
...
}
使用步骤
-
引入依赖
<dependency> <groupId>org.thymeleafgroupId> <artifactId>thymeleaf-spring5artifactId> dependency> <dependency> <groupId>org.thymeleaf.extrasgroupId> <artifactId>thymeleaf-extras-java8timeartifactId> dependency> -
Controller层
@RequestMapping("/test") public String test(Model model){ model.addAttribute("msg","hello,springboot！"); return "test"; } -
html界面
<div th:text="${msg}">div>
3.5、thymeleaf语法
转义语法和遍历操作
-
Controller层
@Controller public class TestController { @RequestMapping("/test") public String test(Model model){ model.addAttribute("msg1","hello,springboot！
"); model.addAttribute("msg2","hello,springboot！
"); model.addAttribute("users", Arrays.asList("路飞","海贼王")); return "test"; } } -
html界面
DOCTYPE html> <html lang="en" xmlns:th="http://www.thymeleaf.org"> <head> <meta charset="UTF-8"> <title>Titletitle> head> <body> <div th:text="${msg1}">div> <div th:utext="${msg2}">div> <h1 th:each="users:${users}" th:text="${users}">h1> body> html>
常用语法
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3.6、SpringMVC扩展
Sprint-boot一定要学会看源码，不会看源码一定学不好
在Config文件夹下创建一个个Config类，实现implements WebMvcConfigurer，重写一些方法，达到MVC的扩展
不能再使用@EnableWebMvc，因为这个注解里最终也实现了相同的类，继续使用会使他们全部失效
/**
* 扩展SpringMVC：实现WebMvcConfigurer接口,重写某些方法让我们实现一些新的配置
* 注意：不能再使用@EnableWebMvc，这个方法会让扩展方法失效
*/
@Configuration
public class MyMVCConfig implements WebMvcConfigurer {
/**
* 视图跳转 访问/ssl，跳转到config.html
*/
@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/ssl").setViewName("config");
}
}
4、项目实战
4.1、准备工作
pojo
@Data
//有参构造
@AllArgsConstructor
//无参构造
@NoArgsConstructor
public class Department {
private Integer id;
private String departmentName;
}
@Data
@NoArgsConstructor
public class Employee {
private Integer id;
private String lastName;
private String email;
private Integer gender;//0女1男
private Department department;
private Date birth;
public Employee(Integer id, String lastName, String email, Integer gender, Department department) {
this.id = id;
this.lastName = lastName;
this.email = email;
this.gender = gender;
this.department = department;
this.birth = new Date();
}
}
dao
@Repository
public class EmployeeDao {
private static Map<Integer, Employee> employees = null;
@Autowired
private DepartmentDao departmentDao;
static {
employees = new HashMap<Integer,Employee>();//创建一个员工表
employees.put(1001,new Employee(1001,"马嘉祺","[email protected]",1,new Department(101,"教学部")));
employees.put(1002,new Employee(1002,"丁程鑫","[email protected]",1,new Department(101,"教学部")));
employees.put(1003,new Employee(1003,"宋亚轩","[email protected]",1,new Department(102,"市场部")));
employees.put(1004,new Employee(1004,"刘耀文","[email protected]",1,new Department(102,"市场部")));
employees.put(1005,new Employee(1005,"张真源","[email protected]",1,new Department(103,"教研部")));
employees.put(1006,new Employee(1006,"严浩翔","[email protected]",1,new Department(104,"运营部")));
employees.put(1007,new Employee(1007,"贺峻霖","[email protected]",1,new Department(104,"运营部")));
}
//主键自增
private static Integer initId = 1008;
//增加一个员工
public void save(Employee employee){
if (employee.getId()==null){
employee.setId(initId++);
}
employee.setDepartment(departmentDao.getDepartmentById(employee.getDepartment().getId()));
employees.put(employee.getId(),employee);
}
//查询所有员工
public Collection<Employee> getAll(){
return employees.values();
}
//根据ID查询员工
public Employee getEmployeeById(Integer id){
return employees.get(id);
}
//根据员工id删除员工
public void delete(Integer id){
employees.remove(id);
}
}
@Repository
public class DepartmentDao {
private static Map<Integer, Department> departments = null;
static {
departments = new HashMap<Integer, Department>();//创建一个部门表
departments.put(101,new Department(101,"教学部"));
departments.put(102,new Department(102,"市场部"));
departments.put(103,new Department(103,"教研部"));
departments.put(104,new Department(104,"运营部"));
departments.put(105,new Department(105,"财务部"));
}
//获得所有部门信息
public Collection<Department> getDepartments(){
return departments.values();
}
//通过id得到部门
public Department getDepartmentById(Integer id){
return departments.get(id);
}
}
4.2、首页实现
MyMvcConfig
//如果你想diy一些定制化的功能，只要写这个组件，然后将它交给Springboot，Springboot就会帮我们自动装配！
//扩展Springmvc dispatchservlet
@Configuration
public class MyMvcConfig implements WebMvcConfigurer {
@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/").setViewName("index");
registry.addViewController("index.html").setViewName("index");
}
}
关闭thymeLeaf缓存
#关闭thymeLeaf缓存
spring.thymeleaf.cache=false
前端界面
404.html
DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<title>Dashboard Template for Bootstraptitle>
<link th:href="@{/css/bootstrap.min.css}" rel="stylesheet">
<link th:href="@{/css/dashboard.css}" rel="stylesheet">
<style type="text/css">
/* Chart.js */
@-webkit-keyframes chartjs-render-animation {
from {
opacity: 0.99
}
to {
opacity: 1
}
}
@keyframes chartjs-render-animation {
from {
opacity: 0.99
}
to {
opacity: 1
}
}
.chartjs-render-monitor {
-webkit-animation: chartjs-render-animation 0.001s;
animation: chartjs-render-animation 0.001s;
}
style>
head>
<body>
<nav class="navbar navbar-dark sticky-top bg-dark flex-md-nowrap p-0">
<a class="navbar-brand col-sm-3 col-md-2 mr-0" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">Company namea>
<input class="form-control form-control-dark w-100" type="text" placeholder="Search" aria-label="Search">
<ul class="navbar-nav px-3">
<li class="nav-item text-nowrap">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">Sign outa>
li>
ul>
nav>
<div class="container-fluid">
<div class="row">
<nav class="col-md-2 d-none d-md-block bg-light sidebar">
<div class="sidebar-sticky">
<ul class="nav flex-column">
<li class="nav-item">
<a class="nav-link active" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-home">
<path d="M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z">path>
<polyline points="9 22 9 12 15 12 15 22">polyline>
svg>
Dashboard <span class="sr-only">(current)span>
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file">
<path d="M13 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V9z">path>
<polyline points="13 2 13 9 20 9">polyline>
svg>
Orders
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-shopping-cart">
<circle cx="9" cy="21" r="1">circle>
<circle cx="20" cy="21" r="1">circle>
<path d="M1 1h4l2.68 13.39a2 2 0 0 0 2 1.61h9.72a2 2 0 0 0 2-1.61L23 6H6">path>
svg>
Products
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-users">
<path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2">path>
<circle cx="9" cy="7" r="4">circle>
<path d="M23 21v-2a4 4 0 0 0-3-3.87">path>
<path d="M16 3.13a4 4 0 0 1 0 7.75">path>
svg>
Customers
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-bar-chart-2">
<line x1="18" y1="20" x2="18" y2="10">line>
<line x1="12" y1="20" x2="12" y2="4">line>
<line x1="6" y1="20" x2="6" y2="14">line>
svg>
Reports
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-layers">
<polygon points="12 2 2 7 12 12 22 7 12 2">polygon>
<polyline points="2 17 12 22 22 17">polyline>
<polyline points="2 12 12 17 22 12">polyline>
svg>
Integrations
a>
li>
ul>
<h6 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
<span>Saved reportsspan>
<a class="d-flex align-items-center text-muted" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-plus-circle"><circle cx="12" cy="12" r="10">circle><line x1="12" y1="8" x2="12" y2="16">line><line x1="8" y1="12" x2="16" y2="12">line>svg>
a>
h6>
<ul class="nav flex-column mb-2">
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path>
<polyline points="14 2 14 8 20 8">polyline>
<line x1="16" y1="13" x2="8" y2="13">line>
<line x1="16" y1="17" x2="8" y2="17">line>
<polyline points="10 9 9 9 8 9">polyline>
svg>
Current month
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path>
<polyline points="14 2 14 8 20 8">polyline>
<line x1="16" y1="13" x2="8" y2="13">line>
<line x1="16" y1="17" x2="8" y2="17">line>
<polyline points="10 9 9 9 8 9">polyline>
svg>
Last quarter
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path>
<polyline points="14 2 14 8 20 8">polyline>
<line x1="16" y1="13" x2="8" y2="13">line>
<line x1="16" y1="17" x2="8" y2="17">line>
<polyline points="10 9 9 9 8 9">polyline>
svg>
Social engagement
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path>
<polyline points="14 2 14 8 20 8">polyline>
<line x1="16" y1="13" x2="8" y2="13">line>
<line x1="16" y1="17" x2="8" y2="17">line>
<polyline points="10 9 9 9 8 9">polyline>
svg>
Year-end sale
a>
li>
ul>
div>
nav>
<main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4">
<h1>404h1>
main>
div>
div>
<script type="text/javascript" th:src="@{/js/jquery-3.2.1.slim.min.js}" >script>
<script type="text/javascript" th:src="@{/js/popper.min.js}" >script>
<script type="text/javascript" th:src="@{/js/bootstrap.min.js}" >script>
<script type="text/javascript" th:src="@{/js/feather.min.js}" >script>
<script>
feather.replace()
script>
<script type="text/javascript" th:src="@{/js/Chart.min.js}" >script>
<script>
var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
datasets: [{
data: [15339, 21345, 18483, 24003, 23489, 24092, 12034],
lineTension: 0,
backgroundColor: 'transparent',
borderColor: '#007bff',
borderWidth: 4,
pointBackgroundColor: '#007bff'
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero: false
}
}]
},
legend: {
display: false,
}
}
});
script>
body>
html>
dashboard.html
DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<title>Dashboard Template for Bootstraptitle>
<link th:href="@{/css/bootstrap.min.css}" rel="stylesheet">
<link th:href="@{/css/dashboard.css}" rel="stylesheet">
<style type="text/css">
/* Chart.js */
@-webkit-keyframes chartjs-render-animation {
from {
opacity: 0.99
}
to {
opacity: 1
}
}
@keyframes chartjs-render-animation {
from {
opacity: 0.99
}
to {
opacity: 1
}
}
.chartjs-render-monitor {
-webkit-animation: chartjs-render-animation 0.001s;
animation: chartjs-render-animation 0.001s;
}
style>
head>
<body>
<nav class="navbar navbar-dark sticky-top bg-dark flex-md-nowrap p-0">
<a class="navbar-brand col-sm-3 col-md-2 mr-0" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">Company namea>
<input class="form-control form-control-dark w-100" type="text" placeholder="Search" aria-label="Search">
<ul class="navbar-nav px-3">
<li class="nav-item text-nowrap">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">Sign outa>
li>
ul>
nav>
<div class="container-fluid">
<div class="row">
<nav class="col-md-2 d-none d-md-block bg-light sidebar">
<div class="sidebar-sticky">
<ul class="nav flex-column">
<li class="nav-item">
<a class="nav-link active" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-home">
<path d="M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z">path>
<polyline points="9 22 9 12 15 12 15 22">polyline>
svg>
Dashboard <span class="sr-only">(current)span>
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file">
<path d="M13 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V9z">path>
<polyline points="13 2 13 9 20 9">polyline>
svg>
Orders
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-shopping-cart">
<circle cx="9" cy="21" r="1">circle>
<circle cx="20" cy="21" r="1">circle>
<path d="M1 1h4l2.68 13.39a2 2 0 0 0 2 1.61h9.72a2 2 0 0 0 2-1.61L23 6H6">path>
svg>
Products
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-users">
<path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2">path>
<circle cx="9" cy="7" r="4">circle>
<path d="M23 21v-2a4 4 0 0 0-3-3.87">path>
<path d="M16 3.13a4 4 0 0 1 0 7.75">path>
svg>
Customers
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-bar-chart-2">
<line x1="18" y1="20" x2="18" y2="10">line>
<line x1="12" y1="20" x2="12" y2="4">line>
<line x1="6" y1="20" x2="6" y2="14">line>
svg>
Reports
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-layers">
<polygon points="12 2 2 7 12 12 22 7 12 2">polygon>
<polyline points="2 17 12 22 22 17">polyline>
<polyline points="2 12 12 17 22 12">polyline>
svg>
Integrations
a>
li>
ul>
<h6 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
<span>Saved reportsspan>
<a class="d-flex align-items-center text-muted" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-plus-circle"><circle cx="12" cy="12" r="10">circle><line x1="12" y1="8" x2="12" y2="16">line><line x1="8" y1="12" x2="16" y2="12">line>svg>
a>
h6>
<ul class="nav flex-column mb-2">
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path>
<polyline points="14 2 14 8 20 8">polyline>
<line x1="16" y1="13" x2="8" y2="13">line>
<line x1="16" y1="17" x2="8" y2="17">line>
<polyline points="10 9 9 9 8 9">polyline>
svg>
Current month
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path>
<polyline points="14 2 14 8 20 8">polyline>
<line x1="16" y1="13" x2="8" y2="13">line>
<line x1="16" y1="17" x2="8" y2="17">line>
<polyline points="10 9 9 9 8 9">polyline>
svg>
Last quarter
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path>
<polyline points="14 2 14 8 20 8">polyline>
<line x1="16" y1="13" x2="8" y2="13">line>
<line x1="16" y1="17" x2="8" y2="17">line>
<polyline points="10 9 9 9 8 9">polyline>
svg>
Social engagement
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path>
<polyline points="14 2 14 8 20 8">polyline>
<line x1="16" y1="13" x2="8" y2="13">line>
<line x1="16" y1="17" x2="8" y2="17">line>
<polyline points="10 9 9 9 8 9">polyline>
svg>
Year-end sale
a>
li>
ul>
div>
nav>
<main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4">
<div class="chartjs-size-monitor" style="position: absolute; left: 0px; top: 0px; right: 0px; bottom: 0px; overflow: hidden; pointer-events: none; visibility: hidden; z-index: -1;">
<div class="chartjs-size-monitor-expand" style="position:absolute;left:0;top:0;right:0;bottom:0;overflow:hidden;pointer-events:none;visibility:hidden;z-index:-1;">
<div style="position:absolute;width:1000000px;height:1000000px;left:0;top:0">div>
div>
<div class="chartjs-size-monitor-shrink" style="position:absolute;left:0;top:0;right:0;bottom:0;overflow:hidden;pointer-events:none;visibility:hidden;z-index:-1;">
<div style="position:absolute;width:200%;height:200%;left:0; top:0">div>
div>
div>
<div class="d-flex justify-content-between flex-wrap flex-md-nowrap align-items-center pb-2 mb-3 border-bottom">
<h1 class="h2">Dashboardh1>
<div class="btn-toolbar mb-2 mb-md-0">
<div class="btn-group mr-2">
<button class="btn btn-sm btn-outline-secondary">Sharebutton>
<button class="btn btn-sm btn-outline-secondary">Exportbutton>
div>
<button class="btn btn-sm btn-outline-secondary dropdown-toggle">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-calendar"><rect x="3" y="4" width="18" height="18" rx="2" ry="2">rect><line x1="16" y1="2" x2="16" y2="6">line><line x1="8" y1="2" x2="8" y2="6">line><line x1="3" y1="10" x2="21" y2="10">line>svg>
This week
button>
div>
div>
<canvas class="my-4 chartjs-render-monitor" id="myChart" width="1076" height="454" style="display: block; width: 1076px; height: 454px;">canvas>
main>
div>
div>
<script type="text/javascript" th:src="@{/js/jquery-3.2.1.slim.min.js}" >script>
<script type="text/javascript" th:src="@{/js/popper.min.js}" >script>
<script type="text/javascript" th:src="@{/js/bootstrap.min.js}" >script>
<script type="text/javascript" th:src="@{/js/feather.min.js}" >script>
<script>
feather.replace()
script>
<script type="text/javascript" th:src="@{/js/Chart.min.js}" >script>
<script>
var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
datasets: [{
data: [15339, 21345, 18483, 24003, 23489, 24092, 12034],
lineTension: 0,
backgroundColor: 'transparent',
borderColor: '#007bff',
borderWidth: 4,
pointBackgroundColor: '#007bff'
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero: false
}
}]
},
legend: {
display: false,
}
}
});
script>
body>
html>
index.html
DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<title>Signin Template for Bootstraptitle>
<link th:href="@{/css/bootstrap.min.css}" rel="stylesheet">
<link th:href="@{/css/signin.css}" rel="stylesheet">
head>
<body class="text-center">
<form class="form-signin" action="dashboard.html">
<img class="mb-4" th:src="@{/img/bootstrap-solid.svg}" alt="" width="72" height="72">
<h1 class="h3 mb-3 font-weight-normal">Please sign inh1>
<label class="sr-only">Usernamelabel>
<input type="text" class="form-control" placeholder="Username" required="" autofocus="">
<label class="sr-only">Passwordlabel>
<input type="password" class="form-control" placeholder="Password" required="">
<div class="checkbox mb-3">
<label>
<input type="checkbox" value="remember-me"> Remember me
label>
div>
<button class="btn btn-lg btn-primary btn-block" type="submit">Sign inbutton>
<p class="mt-5 mb-3 text-muted">© 2017-2018p>
<a class="btn btn-sm">中文a>
<a class="btn btn-sm">Englisha>
form>
body>
html>
list.html
DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
<title>Dashboard Template for Bootstraptitle>
<link th:href="@{/css/bootstrap.min.css}" rel="stylesheet">
<link th:href="@{/css/dashboard.css}" rel="stylesheet">
<style type="text/css">
/* Chart.js */
@-webkit-keyframes chartjs-render-animation {
from {
opacity: 0.99
}
to {
opacity: 1
}
}
@keyframes chartjs-render-animation {
from {
opacity: 0.99
}
to {
opacity: 1
}
}
.chartjs-render-monitor {
-webkit-animation: chartjs-render-animation 0.001s;
animation: chartjs-render-animation 0.001s;
}
style>
head>
<body>
<nav class="navbar navbar-dark sticky-top bg-dark flex-md-nowrap p-0">
<a class="navbar-brand col-sm-3 col-md-2 mr-0" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">Company namea>
<input class="form-control form-control-dark w-100" type="text" placeholder="Search" aria-label="Search">
<ul class="navbar-nav px-3">
<li class="nav-item text-nowrap">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">Sign outa>
li>
ul>
nav>
<div class="container-fluid">
<div class="row">
<nav class="col-md-2 d-none d-md-block bg-light sidebar">
<div class="sidebar-sticky">
<ul class="nav flex-column">
<li class="nav-item">
<a class="nav-link active" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-home">
<path d="M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z">path>
<polyline points="9 22 9 12 15 12 15 22">polyline>
svg>
Dashboard <span class="sr-only">(current)span>
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file">
<path d="M13 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V9z">path>
<polyline points="13 2 13 9 20 9">polyline>
svg>
Orders
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-shopping-cart">
<circle cx="9" cy="21" r="1">circle>
<circle cx="20" cy="21" r="1">circle>
<path d="M1 1h4l2.68 13.39a2 2 0 0 0 2 1.61h9.72a2 2 0 0 0 2-1.61L23 6H6">path>
svg>
Products
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-users">
<path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2">path>
<circle cx="9" cy="7" r="4">circle>
<path d="M23 21v-2a4 4 0 0 0-3-3.87">path>
<path d="M16 3.13a4 4 0 0 1 0 7.75">path>
svg>
Customers
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-bar-chart-2">
<line x1="18" y1="20" x2="18" y2="10">line>
<line x1="12" y1="20" x2="12" y2="4">line>
<line x1="6" y1="20" x2="6" y2="14">line>
svg>
Reports
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-layers">
<polygon points="12 2 2 7 12 12 22 7 12 2">polygon>
<polyline points="2 17 12 22 22 17">polyline>
<polyline points="2 12 12 17 22 12">polyline>
svg>
Integrations
a>
li>
ul>
<h6 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted">
<span>Saved reportsspan>
<a class="d-flex align-items-center text-muted" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-plus-circle"><circle cx="12" cy="12" r="10">circle><line x1="12" y1="8" x2="12" y2="16">line><line x1="8" y1="12" x2="16" y2="12">line>svg>
a>
h6>
<ul class="nav flex-column mb-2">
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path>
<polyline points="14 2 14 8 20 8">polyline>
<line x1="16" y1="13" x2="8" y2="13">line>
<line x1="16" y1="17" x2="8" y2="17">line>
<polyline points="10 9 9 9 8 9">polyline>
svg>
Current month
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path>
<polyline points="14 2 14 8 20 8">polyline>
<line x1="16" y1="13" x2="8" y2="13">line>
<line x1="16" y1="17" x2="8" y2="17">line>
<polyline points="10 9 9 9 8 9">polyline>
svg>
Last quarter
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path>
<polyline points="14 2 14 8 20 8">polyline>
<line x1="16" y1="13" x2="8" y2="13">line>
<line x1="16" y1="17" x2="8" y2="17">line>
<polyline points="10 9 9 9 8 9">polyline>
svg>
Social engagement
a>
li>
<li class="nav-item">
<a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">
<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text">
<path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path>
<polyline points="14 2 14 8 20 8">polyline>
<line x1="16" y1="13" x2="8" y2="13">line>
<line x1="16" y1="17" x2="8" y2="17">line>
<polyline points="10 9 9 9 8 9">polyline>
svg>
Year-end sale
a>
li>
ul>
div>
nav>
<main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4">
<h2>Section titleh2>
<div class="table-responsive">
<table class="table table-striped table-sm">
<thead>
<tr>
<th>#th>
<th>Headerth>
<th>Headerth>
<th>Headerth>
<th>Headerth>
tr>
thead>
<tbody>
<tr>
<td>1,001td>
<td>Loremtd>
<td>ipsumtd>
<td>dolortd>
<td>sittd>
tr>
<tr>
<td>1,002td>
<td>amettd>
<td>consecteturtd>
<td>adipiscingtd>
<td>elittd>
tr>
<tr>
<td>1,003td>
<td>Integertd>
<td>nectd>
<td>odiotd>
<td>Praesenttd>
tr>
<tr>
<td>1,003td>
<td>liberotd>
<td>Sedtd>
<td>cursustd>
<td>antetd>
tr>
<tr>
<td>1,004td>
<td>dapibustd>
<td>diamtd>
<td>Sedtd>
<td>nisitd>
tr>
<tr>
<td>1,005td>
<td>Nullatd>
<td>quistd>
<td>semtd>
<td>attd>
tr>
<tr>
<td>1,006td>
<td>nibhtd>
<td>elementumtd>
<td>imperdiettd>
<td>Duistd>
tr>
<tr>
<td>1,007td>
<td>sagittistd>
<td>ipsumtd>
<td>Praesenttd>
<td>mauristd>
tr>
<tr>
<td>1,008td>
<td>Fuscetd>
<td>nectd>
<td>tellustd>
<td>sedtd>
tr>
<tr>
<td>1,009td>
<td>auguetd>
<td>sempertd>
<td>portatd>
<td>Mauristd>
tr>
<tr>
<td>1,010td>
<td>massatd>
<td>Vestibulumtd>
<td>laciniatd>
<td>arcutd>
tr>
<tr>
<td>1,011td>
<td>egettd>
<td>nullatd>
<td>Classtd>
<td>aptenttd>
tr>
<tr>
<td>1,012td>
<td>tacititd>
<td>sociosqutd>
<td>adtd>
<td>litoratd>
tr>
<tr>
<td>1,013td>
<td>torquenttd>
<td>pertd>
<td>conubiatd>
<td>nostratd>
tr>
<tr>
<td>1,014td>
<td>pertd>
<td>inceptostd>
<td>himenaeostd>
<td>Curabiturtd>
tr>
<tr>
<td>1,015td>
<td>sodalestd>
<td>ligulatd>
<td>intd>
<td>liberotd>
tr>
tbody>
table>
div>
main>
div>
div>
<script type="text/javascript" th:src="@{/js/jquery-3.2.1.slim.min.js}">script>
<script type="text/javascript" th:src="@{/js/popper.min.js}">script>
<script type="text/javascript" th:src="@{/js/bootstrap.min.js}">script>
<script type="text/javascript" th:src="@{/js/feather.min.js}">script>
<script>
feather.replace()
script>
<script type="text/javascript" th:src="@{/js/Chart.min.js}">script>
<script>
var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
datasets: [{
data: [15339, 21345, 18483, 24003, 23489, 24092, 12034],
lineTension: 0,
backgroundColor: 'transparent',
borderColor: '#007bff',
borderWidth: 4,
pointBackgroundColor: '#007bff'
}]
},
options: {
scales: {
yAxes: [{
ticks: {
beginAtZero: false
}
}]
},
legend: {
display: false,
}
}
});
script>
body>
html>
4.3、页面国际化
实现页面中文和英文语言切换！！！
- 在Resource下创建对应的切换配置文件
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- 在application.properties中写好配置文件的路径
#配置文件的位置
spring.messages.basename=i18n.login
- 在前端页面中使用语法取值
<form class="form-signin" action="dashboard.html">
<img class="mb-4" th:src="@{/img/bootstrap-solid.svg}" alt="" width="72" height="72">
<h1 class="h3 mb-3 font-weight-normal" th:text="#{login.tip}">h1>
<label class="sr-only">Usernamelabel>
<input type="text" class="form-control" th:placeholder="#{login.username}" required="" autofocus="">
<label class="sr-only">Passwordlabel>
<input type="password" class="form-control" th:placeholder="#{login.password}" required="">
<div class="checkbox mb-3">
<label>
<input type="checkbox" value="remember-me" th:text="#{login.remember}">
label>
div>
<button class="btn btn-lg btn-primary btn-block" type="submit" th:text="#{login.btn}">button>
<p class="mt-5 mb-3 text-muted">© 2017-2018p>
<a class="btn btn-sm" th:href="@{/index.html(l='zh_CN')}">中文a>
<a class="btn btn-sm" th:href="@{/index.html(l='en_US')}">Englisha>
form>
-
编写MyLocalResolver类
public class MyLocalResolver implements LocaleResolver { //解析请求 @Override public Locale resolveLocale(HttpServletRequest request) { String language = request.getParameter("l"); Locale locale = Locale.getDefault();//如果没有就使用默认的 //如果请求链接携带了国际化的参数 if (!StringUtils.isEmpty(language)){ String[] split = language.split("_"); locale = new Locale(split[0],split[1]); } return locale; } @Override public void setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale) { } } -
在mymvcconfig中注册
@Configuration public class MyMvcConfig implements WebMvcConfigurer { @Override public void addViewControllers(ViewControllerRegistry registry) { registry.addViewController("/").setViewName("index"); registry.addViewController("index.html").setViewName("index"); } //自定义国际化 @Bean public LocaleResolver localeResolver(){ return new MyLocalResolver(); } }
注意：需要先在idea设置的file encoding中将编码语言全部设置为utf-8，否则可能会乱码。
4.4、登录功能实现
-
LoginController
@Controller public class LoginController { @RequestMapping("/user/login") public String login(@RequestParam("username") String username, @RequestParam("password") String password, Model model){ if(!StringUtils.isEmpty(username) && "123456".equals(password)){ //登陆成功之后重定向页面 return "redirect:/main.html"; }else { model.addAttribute("msg","用户名或者密码错误"); return "index"; } } } -
在MyMvcConfig.java中配置虚拟请求
registry.addViewController("main.html").setViewName("dashboard"); -
在前端页面用P标签接收错误信息
<p style="color: red" th:text="${msg}" th:if="${not #strings.isEmpty(msg)}">p>
4.5、登录拦截器
-
LoginHandlerInterceptor
public class LoginHandlerInterceptor implements HandlerInterceptor { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception { //登陆成功之后应该有用户的session Object loginUser = request.getSession().getAttribute("loginUser"); if(loginUser == null){ request.setAttribute("msg","没有权限,请先登录"); request.getRequestDispatcher("/index.html").forward(request,response); return false; }else{ return true; } } } -
MyMvcConfig配置拦截器的bean
//登录拦截器 @Override public void addInterceptors(InterceptorRegistry registry) { registry.addInterceptor(new LoginHandlerInterceptor()).addPathPatterns("/**").excludePathPatterns("/index.html","/","/user/login","/css/**","/img/**","/img/**"); } -
在登录请求中配置session
@RequestMapping("/user/login") public String login(@RequestParam("username") String username, @RequestParam("password") String password, Model model, HttpSession session){ if(!StringUtils.isEmpty(username) && "123456".equals(password)){ session.setAttribute("loginUser",username); //登陆成功之后重定向页面 return "redirect:/main.html"; }else { model.addAttribute("msg","用户名或者密码错误"); return "index"; } } -
在首页前端登录成功取到session展示
[[${session.loginUser}]]
4.6、展示员工页面
-
在templates创建子文件夹（emp放子页面，commons是碎片化管理）
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-
commons的代码（主要区分了顶部和侧边的代码，方便共用）
- th:fragment=“××”（定义碎片）
- th:insert=“~{commons/commons::××}”（使用碎片）
<nav class="navbar navbar-dark sticky-top bg-dark flex-md-nowrap p-0" th:fragment="topbar"> <a class="navbar-brand col-sm-3 col-md-2 mr-0" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#">[[${session.loginUser}]]a> <input class="form-control form-control-dark w-100" type="text" placeholder="Search" aria-label="Search"> <ul class="navbar-nav px-3"> <li class="nav-item text-nowrap"> <a class="nav-link" th:href="@{/user/signOut}">注销a> li> ul> nav> <nav class="col-md-2 d-none d-md-block bg-light sidebar" th:fragment="sidebar"> <div class="sidebar-sticky"> <ul class="nav flex-column"> <li class="nav-item"> <a th:class="${active=='main.html'?'nav-link active':'nav-link'}" th:href="@{/main.html}"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-home"> <path d="M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z">path> <polyline points="9 22 9 12 15 12 15 22">polyline> svg> 首页 <span class="sr-only">(current)span> a> li> <li class="nav-item"> <a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file"> <path d="M13 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V9z">path> <polyline points="13 2 13 9 20 9">polyline> svg> Orders a> li> <li class="nav-item"> <a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-shopping-cart"> <circle cx="9" cy="21" r="1">circle> <circle cx="20" cy="21" r="1">circle> <path d="M1 1h4l2.68 13.39a2 2 0 0 0 2 1.61h9.72a2 2 0 0 0 2-1.61L23 6H6">path> svg> Products a> li> <li class="nav-item"> <a th:class="${active=='list.html'?'nav-link active':'nav-link'}" th:href="@{/emps}"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-users"> <path d="M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2">path> <circle cx="9" cy="7" r="4">circle> <path d="M23 21v-2a4 4 0 0 0-3-3.87">path> <path d="M16 3.13a4 4 0 0 1 0 7.75">path> svg> 员工管理 a> li> <li class="nav-item"> <a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-bar-chart-2"> <line x1="18" y1="20" x2="18" y2="10">line> <line x1="12" y1="20" x2="12" y2="4">line> <line x1="6" y1="20" x2="6" y2="14">line> svg> Reports a> li> <li class="nav-item"> <a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-layers"> <polygon points="12 2 2 7 12 12 22 7 12 2">polygon> <polyline points="2 17 12 22 22 17">polyline> <polyline points="2 12 12 17 22 12">polyline> svg> Integrations a> li> ul> <h6 class="sidebar-heading d-flex justify-content-between align-items-center px-3 mt-4 mb-1 text-muted"> <span>Saved reportsspan> <a class="d-flex align-items-center text-muted" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-plus-circle"><circle cx="12" cy="12" r="10">circle><line x1="12" y1="8" x2="12" y2="16">line><line x1="8" y1="12" x2="16" y2="12">line>svg> a> h6> <ul class="nav flex-column mb-2"> <li class="nav-item"> <a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text"> <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path> <polyline points="14 2 14 8 20 8">polyline> <line x1="16" y1="13" x2="8" y2="13">line> <line x1="16" y1="17" x2="8" y2="17">line> <polyline points="10 9 9 9 8 9">polyline> svg> Current month a> li> <li class="nav-item"> <a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text"> <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path> <polyline points="14 2 14 8 20 8">polyline> <line x1="16" y1="13" x2="8" y2="13">line> <line x1="16" y1="17" x2="8" y2="17">line> <polyline points="10 9 9 9 8 9">polyline> svg> Last quarter a> li> <li class="nav-item"> <a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text"> <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path> <polyline points="14 2 14 8 20 8">polyline> <line x1="16" y1="13" x2="8" y2="13">line> <line x1="16" y1="17" x2="8" y2="17">line> <polyline points="10 9 9 9 8 9">polyline> svg> Social engagement a> li> <li class="nav-item"> <a class="nav-link" href="http://getbootstrap.com/docs/4.0/examples/dashboard/#"> <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="feather feather-file-text"> <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z">path> <polyline points="14 2 14 8 20 8">polyline> <line x1="16" y1="13" x2="8" y2="13">line> <line x1="16" y1="17" x2="8" y2="17">line> <polyline points="10 9 9 9 8 9">polyline> svg> Year-end sale a> li> ul> div> nav> -
在dashboard和list下加入使用碎片的方法，使代码复用性提高
- sidebar和topbar是碎片的名称
- 后面跟的括号是传参名active，当在dashboard下点击的时候传参main.html使侧边栏高亮
- 高亮对应代码：th:class=“${active==‘main.html’?‘nav-link active’:‘nav-link’}”
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-
EmployeeController（点击员工管理模块时查询员工信息并返回到list.html展示）
@RequestMapping("/emps") public String list(Model model){ Collection<Employee> employees = employeeDao.getAll(); model.addAttribute("emps",employees); return "emp/list"; } -
list页面遍历员工信息
<table class="table table-striped table-sm"> <thead> <tr> <th>idth> <th>lastNameth> <th>emailth> <th>genderth> <th>departmentth> <th>birthth> <th>操作th> tr> thead> <tbody> <tr th:each="emp:${emps}"> <td th:text="${emp.getId()}">td> <td th:text="${emp.getLastName()}">td> <td th:text="${emp.getEmail()}">td> <td th:text="${emp.getGender()==0?'女':'男'}">td> <td th:text="${emp.department.getDepartmentName()}">td> <td th:text="${#dates.format(emp.getBirth(),'yyyy-MM-dd HH:mm:ss')}"> td> <td> <button class="btn btn-sm btn-primary">editbutton> <button class="btn btn-sm btn-danger">delbutton> td> tr> tbody> table>
4.7、增加员工
-
在用户展示页面添加一个添加员工的按钮
<h2> <a class="btn btn-sm btn-success" th:href="@{/emp}">添加员工a> h2> -
编写增加页面add.html
LastNameEmailGender男女DepartmentBirth添加 -
EmployeeController添加两个请求
//点击添加按钮请求到添加页面，因为添加需要部门信息，所以先查询部门信息作为参数传递 @RequestMapping("/emp") public String toAddpage(Model model){ Collection<Department> departments = departmentDao.getDepartments(); model.addAttribute("departments",departments); return "emp/add"; } //点击添加成功按钮，将添加的数据保存，然后重定向到查询用户页面的请求 @PostMapping("/emp") public String toAddEmp(Employee employee){ employeeDao.save(employee); return "redirect:/emps"; } -
修改日期格式
# 修改日期格式，默认是yyyy/MM/dd spring.mvc.date-format=yyyy-MM-dd
4.7、修改员工
-
编辑按钮传参
<a class="btn btn-sm btn-primary" th:href="@{/emp/}+${emp.getId()}">编辑a> -
EmployeeController的两个请求
//接收传递的id，然后查询部门信息，跳转到修改界面 @GetMapping("/emp/{id}") public String toUpdateEmpPage(@PathVariable("id") Integer id, Model model) { Employee employee = employeeDao.getEmployeeById(id); model.addAttribute("emp", employee); Collection<Department> departments = departmentDao.getDepartments(); model.addAttribute("departments", departments); return "emp/update"; } //将修改的信息进行修改后重定向到查询用户页面的请求 @PostMapping("/updateEmp") public String updateEmp(Employee employee) { employeeDao.save(employee); return "redirect:/emps"; } -
编写修改页面
<main role="main" class="col-md-9 ml-sm-auto col-lg-10 pt-3 px-4"> <form th:action="@{/updateEmp}" method="post"> <input type="hidden" name="id" th:value="${emp.getId()}"> <div class="form-group"> <label>LastNamelabel> <input name="lastName" th:value="${emp.getLastName()}" type="text" class="form-control" id="exampleInputEmail1" placeholder="lastName"> div> <div class="form-group"> <label>Emaillabel> <input name="email" th:value="${emp.getEmail()}" type="email" class="form-control" id="exampleInputPassword1" placeholder="email"> div> <div class="form-group"> <label>Genderlabel> <div class="form-check form-check-inline"> <input th:checked="${emp.getGender()==1}" class="form-check-input" type="radio" value="1" name="gender"/> <label class="form-check-label">男label> div> <div class="form-check form-check-inline"> <input th:checked="${emp.getGender()==0}" class="form-check-input" type="radio" value="0" name="gender"/> <label class="form-check-label">女label> div> div> <div class="form-group"> <label>Departmentlabel> <select name="department.id" class="form-control"> <option th:each="dept:${departments}" th:selected="${dept.getId()==emp.getDepartment().getId()}" th:text="${dept.getDepartmentName()}" th:value="${dept.getId()}">option> select> div> <div class="form-group"> <label>Birthlabel> <input th:value="${#dates.format(emp.getBirth(),'yyyy-MM-dd HH:mm:ss')}" name="birth" type="text" class="form-control" placeholder="yyyy-MM-dd"> div> <button type="submit" class="btn btn-default">修改button> form> main>
4.8、删除员工
-
删除按钮传参
<a class="btn btn-sm btn-danger" th:href="@{/deleteEmp/}+${emp.getId()}">删除a> -
EmployeeController的一个请求
@GetMapping("/deleteEmp/{id}") public String deleteEmp(@PathVariable("id") Integer id) { employeeDao.delete(id); return "redirect:/emps"; }
4.9、错误页面
- springBoot封装了，在template中创建error包，下面放404.html，会自动出错时跳转到该页面
4.10、注销
-
注销按钮
<a class="nav-link" th:href="@{/user/signOut}">注销a> -
LoginController的一个请求
@RequestMapping("/user/signOut") public String signOut(HttpSession session){ session.removeAttribute("loginUser"); return "redirect:/index.html"; }
5、springboot整合
5.1、整合JDBC
-
加入依赖
<dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-jdbcartifactId> dependency> <dependency> <groupId>mysqlgroupId> <artifactId>mysql-connector-javaartifactId> <scope>runtimescope> -
使用yaml连接数据库配置
spring: datasource: username: root password: root #?serverTimezone=UTC解决时区的报错 url: jdbc:mysql://localhost:3306/mybatis?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8 driver-class-name: com.mysql.cj.jdbc.Driver -
测试整合JDBC环境
@SpringBootTest class Springboot04DataApplicationTests { //DI注入数据源 @Autowired(required = false) DataSource dataSource; @Test public void contextLoads() throws SQLException { //看一下默认数据源 System.out.println(dataSource.getClass()); //获得连接 Connection connection = dataSource.getConnection(); System.out.println(connection); //关闭连接 connection.close(); } } -
测试CRUD
@RestController public class JDBCController { @Autowired(required = false) JdbcTemplate jdbcTemplate; // 查询数据库的所有信息 // 没有实体类，获取数据库的东西，怎么获取？ Map @GetMapping("/userList") public List<Map<String,Object>> userList() { String sql = "select * from mybatis.user"; List<Map<String, Object>> list_maps = jdbcTemplate.queryForList(sql); return list_maps; } @GetMapping("/addUser") public String addUser() { String sql = "insert into mybatis.user(id, name, pwd) values(8,'小明','123456')"; jdbcTemplate.update(sql); return "update-ok"; } @GetMapping("/updateUser/{id}") public String updateUser(@PathVariable("id") int id) { String sql = "update mybatis.user set name = ?,pwd = ? where id = " + id; //封装 Object[] objects = new Object[2]; objects[0] = "小明2"; objects[1] = "aaaaaaa"; jdbcTemplate.update(sql,objects); return "update-ok"; } @GetMapping("/deleteUser/{id}") public String deleteUser(@PathVariable("id") int id) { String sql = "delete from mybatis.user where id = ?"; jdbcTemplate.update(sql,id); return "update-ok"; } }
5.2、整合Druid
- Druid 是阿里巴巴开源平台上一个数据库连接池实现，结合了 C3P0、DBCP 等 DB 池的优点，同时加入了日志监控。
-
添加 Druid 和log4j数据源依赖
<dependency> <groupId>com.alibabagroupId> <artifactId>druid-spring-boot-starterartifactId> <version>1.1.24version> dependency> <dependency> <groupId>log4jgroupId> <artifactId>log4jartifactId> <version>1.2.17version> dependency> -
yaml配置文件添加Druid的需求
type: com.alibaba.druid.pool.DruidDataSource #Spring Boot 默认是不注入这些属性值的，需要自己绑定 #druid 数据源专有配置 initialSize: 5 minIdle: 5 maxActive: 20 maxWait: 60000 timeBetweenEvictionRunsMillis: 60000 minEvictableIdleTimeMillis: 300000 validationQuery: SELECT 1 FROM DUAL testWhileIdle: true testOnBorrow: false testOnReturn: false poolPreparedStatements: true #配置监控统计拦截的filters，stat:监控统计、log4j：日志记录、wall：防御sql注入 #如果允许时报错 java.lang.ClassNotFoundException: org.apache.log4j.Priority #则导入 log4j 依赖即可，Maven 地址：https://mvnrepository.com/artifact/log4j/log4j filters: stat,wall,log4j maxPoolPreparedStatementPerConnectionSize: 20 useGlobalDataSourceStat: true connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500 -
编写Druid配置类
@Configuration public class DruidConfig { //将自定义的Druid配置进IOC容器 @ConfigurationProperties(prefix = "spring.datasource") @Bean public DataSource getDataSource() { return new DruidDataSource(); } //配置 Druid 监控管理后台的Servlet； //内置 Servlet 容器时没有web.xml文件，所以使用 Spring Boot 的注册 Servlet 方式 @Bean public ServletRegistrationBean statViewServlet() { ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*"); // 这些参数可以在 com.alibaba.druid.support.http.StatViewServlet // 的父类 com.alibaba.druid.support.http.ResourceServlet 中找到 Map<String, String> initParams = new HashMap<>(); initParams.put("loginUsername", "root"); //后台管理界面的登录账号 initParams.put("loginPassword", "admin"); //后台管理界面的登录密码 //后台允许谁可以访问 //initParams.put("allow", "localhost")：表示只有本机可以访问 //initParams.put("allow", "")：为空或者为null时，表示允许所有访问 initParams.put("allow", ""); //deny：Druid 后台拒绝谁访问 //initParams.put("kuangshen", "192.168.1.20");表示禁止此ip访问 //设置初始化参数 bean.setInitParameters(initParams); return bean; } //配置 Druid 监控 之 web 监控的 filter //WebStatFilter：用于配置Web和Druid数据源之间的管理关联监控统计 @Bean public FilterRegistrationBean webStatFilter() { FilterRegistrationBean bean = new FilterRegistrationBean(); bean.setFilter(new WebStatFilter()); //exclusions：设置哪些请求进行过滤排除掉，从而不进行统计 Map<String, String> initParams = new HashMap<>(); initParams.put("exclusions", "*.js,*.css,/druid/*,/jdbc/*"); bean.setInitParameters(initParams); //"/*" 表示过滤所有请求 bean.setUrlPatterns(Arrays.asList("/*")); return bean; } }
配置完druid类之后访问http://localhost:8080/druid/可以进入druid的监控，账号密码为配置类里指定的，进入之后可以查看每条sql的信息
5.3、整合mybatis
-
导入依赖
<dependency> <groupId>org.mybatis.spring.bootgroupId> <artifactId>mybatis-spring-boot-starterartifactId> <version>2.1.2version> dependency> -
配置application.yaml
# 整合数据源 spring: datasource: username: root password: root url: jdbc:mysql://localhost:3306/mybatis?userUnicode=true&chacacterEncoding=utf-8&serverTimezone=UTC # Springboot使用 com.mysql.cj.jdbc.Driver 针对Mysql8以上，5可能会有bug driver-class-name: com.mysql.cj.jdbc.Driver # 整合mybatis mybatis: type-aliases-package: com.example.springboot05mybatis.pojo # 解决绑定异常：mapper.xml最好和接口的包名路径一致 mapper-locations: classpath:mybatis/mapper/*.xml -
实体类
@Data @AllArgsConstructor @NoArgsConstructor public class User { private int id; private String name; private String pwd; } -
mapper层接口
@Mapper// 这个注解表示了这是一个mapper的注解类 @Repository public interface UserMapper { List<User> getAllUser(); User getUserById(@Param("id") int id); void addUser(User user); void deleteUser(@Param("id")int id); User updateUser(User user); } -
mapper.xml
DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.example.springboot05mybatis.mapper.UserMapper"> <select id="getAllUser" resultType="User"> SELECT * FROM mybatis.user; select> <select id="getUserById" parameterType="int" resultType="User"> select * from mybatis.user where id=#{id}; select> <insert id="addUser" parameterType="User"> insert into mybatis.user(id,name,pwd) values (#{id},#{name},#{pwd}) insert> <update id="updateUser" parameterType="User"> update mybatis.user set name=#{name},pwd=#{pwd} where id = #{id} update> <delete id="deleteUser" parameterType="int"> delete from mybatis.user where id = #{id} delete> mapper>
6、SpringSecurity
6.1、SpringSecurity介绍
SpringSecurity 是针对spring项目的安全框架，也是springboot底层默认的安全模块技术选型，它可以实现强大的Web安全机制，只需要少数的spring-boot--spring-security依赖，进行少量的配置，就可以实现强大的安全管理
-
WebSecurityConfigurerAdapter:自定义Security策略
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AuthenticationManagerBuilder:自定义认证策略
-
@EnableWebSecurity：开启WebSecurity模式【@Enablexxxx：开启某个功能】
SpringSecurity的两个主要目标
- 认证方式：Authentication
- 权限：Authorization
6.1、Springboot整合SpringSecurity环境搭建
-
导入依赖
<dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-securityartifactId> dependency> <dependency> <groupId>org.thymeleaf.extrasgroupId> <artifactId>thymeleaf-extras-java8timeartifactId> dependency> <dependency> <groupId>org.thymeleaf.extrasgroupId> <artifactId>thymeleaf-extras-springsecurity5artifactId> <version>3.0.4.RELEASEversion> dependency> -
RouterController
@Controller public class RouterController { @RequestMapping({"/", "/index"}) public String index() { return "index"; } @RequestMapping("/toLogin") public String toLogin() { return "views/login"; } @RequestMapping("/level1/{id}") public String level1(@PathVariable("id") int id) { return "views/level1/" + id; } @RequestMapping("/level2/{id}") public String level2(@PathVariable("id") int id) { return "views/level2/" + id; } @RequestMapping("/level3/{id}") public String level3(@PathVariable("id") int id) { return "views/level3/" + id; } } -
导入静态资源
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-
MySecurityConfig安全配置类编写
@EnableWebSecurity public class MySecurityConfig extends WebSecurityConfigurerAdapter { // url授权: HttpSecurity @Override protected void configure(HttpSecurity security) throws Exception { // 首页所有人可以访问，但是功能也只有对有权限的人可以访问 security .authorizeRequests() // 认证请求 .antMatchers("/").permitAll()//所有人都可以进入这个请求 .antMatchers("/level1/**").hasRole("vip1") .antMatchers("/level2/**").hasRole("vip2") .antMatchers("/level3/**").hasRole("vip3") ; // 自带登录页面，http://localhost:8080/login // 定制登录页，loginPage("/toLogin") // 指定表单提交url：loginProcessingUrl("/login") security.formLogin().loginPage("/toLogin") .usernameParameter("username").passwordParameter("password") .loginProcessingUrl("/login"); // 防止网站工具 get post security.csrf().disable();//关闭csrf功能，登录失败存在的原因 // 开启记住我功能:本质就是记住一个cookies，默认保存2周 security.rememberMe().rememberMeParameter("remember"); // 开启注销功能,源码http://localhost:8080/logout，并且注销成功后跳转到/的Controller security.logout().logoutSuccessUrl("/"); } // 用户认证：AuthenticationManagerBuilder // SpringSecurity5 以后默认需要新郑密码密码加密方式 @Override public void configure(AuthenticationManagerBuilder builder) throws Exception { // 内存中测试数据 builder.inMemoryAuthentication() // SpringSecurity5 以后默认需要新郑密码密码加密方式 .passwordEncoder(new BCryptPasswordEncoder()) .withUser("luffy").password(new BCryptPasswordEncoder().encode("123456")).roles("vip1") .and() .withUser("admin").password(new BCryptPasswordEncoder().encode("123456")).roles("vip2", "vip3") ; } } -
index.html修改thymeleaf和security搭建的代码
<div class="right menu"> <div sec:authorize="!isAuthenticated()"> <a class="item" th:href="@{/toLogin}"> <i class="address card icon">i> 登录 a> div> <div sec:authorize="isAuthenticated()"> <a class="item" th:href="@{/logout}"> 用户名：<span sec:authentication="name">span> a> <a class="item" th:href="@{/logout}"> <i class="sign-out card icon">i> 注销 a> div> div> -
login.html
<form th:action="@{/login}" method="post"> <div class="field"> <label>Usernamelabel> <div class="ui left icon input"> <input type="text" placeholder="Username" name="username"> <i class="user icon">i> div> div> <div class="field"> <label>Passwordlabel> <div class="ui left icon input"> <input type="password" name="password"> <i class="lock icon">i> div> div> <div class="field"> <div class="field"> <input type="checkbox" name="remember"> 记住我 div> div> <input type="submit" class="ui blue submit button"/> form>
6、Shiro
Apache Shiro 是 Java 的一个安全框架。目前，使用 Apache Shiro 的人越来越多，因为它相当简单，对比 Spring Security，可能没有 Spring Security 做的功能强大，但是在实际工作时可能并不需要那么复杂的东西，所以使用小而简单的 Shiro 就足够了。对于它俩到底哪个好，这个不必纠结，能更简单的解决项目问题就好了。
- 核心三大对象：用户Subject, 管理用户SecurityManager, 连接数据Realms
- Subject：即“当前操作用户”。但是，在Shiro中，Subject这一概念并不仅仅指人，也可以是第三方进程、后台帐户（Daemon Account）或其他类似事物。它仅仅意味着“当前跟软件交互的东西”。
- SecurityManager：它是Shiro框架的核心，典型的Facade模式，Shiro通过SecurityManager来管理内部组件实例，并通过它来提供安全管理的各种服务。
- Realm： Realm充当了Shiro与应用安全数据间的“桥梁”或者“连接器”。也就是说，当对用户执行认证（登录）和授权（访问控制）验证时，Shiro会从应用配置的Realm中查找用户及其权限信息。从这个意义上讲，Realm实质上是一个安全相关的DAO：它封装了数据源的连接细节，并在需要时将相关数据提供给Shiro。当配置Shiro时，你必须至少指定一个Realm，用于认证和（或）授权。配置多个Realm是可以的，但是至少需要一个。
6.1、Shiro快速开始
-
导入依赖
<dependency> <groupId>com.github.theborakompanionigroupId> <artifactId>thymeleaf-extras-shiroartifactId> <version>2.0.0version> dependency> <dependency> <groupId>mysqlgroupId> <artifactId>mysql-connector-javaartifactId> dependency> <dependency> <groupId>com.alibabagroupId> <artifactId>druidartifactId> <version>1.1.22version> dependency> <dependency> <groupId>log4jgroupId> <artifactId>log4jartifactId> <version>1.2.17version> dependency> <dependency> <groupId>org.mybatis.spring.bootgroupId> <artifactId>mybatis-spring-boot-starterartifactId> <version>2.1.2version> dependency> <dependency> <groupId>org.projectlombokgroupId> <artifactId>lombokartifactId> dependency> <dependency> <groupId>org.apache.shirogroupId> <artifactId>shiro-springartifactId> <version>1.5.3version> dependency> <dependency> <groupId>org.thymeleafgroupId> <artifactId>thymeleaf-spring5artifactId> dependency> <dependency> <groupId>org.thymeleaf.extrasgroupId> <artifactId>thymeleaf-extras-java8timeartifactId> dependency> <dependency> <groupId>org.apache.shirogroupId> <artifactId>shiro-coreartifactId> <version>1.5.3version> dependency> -
编写shiro.ini
[users] # user 'root' with password 'secret' and the 'admin' role root = secret, admin # user 'guest' with the password 'guest' and the 'guest' role guest = guest, guest # user 'presidentskroob' with password '12345' ("That's the same combination on # my luggage!!!" ;)), and role 'president' presidentskroob = 12345, president # user 'darkhelmet' with password 'ludicrousspeed' and roles 'darklord' and 'schwartz' darkhelmet = ludicrousspeed, darklord, schwartz # user 'lonestarr' with password 'vespa' and roles 'goodguy' and 'schwartz' lonestarr = vespa, goodguy, schwartz # ----------------------------------------------------------------------------- # Roles with assigned permissions # # Each line conforms to the format defined in the # org.apache.shiro.realm.text.TextConfigurationRealm#setRoleDefinitions JavaDoc # ----------------------------------------------------------------------------- [roles] # 'admin' role has all permissions, indicated by the wildcard '*' admin = * # The 'schwartz' role can do anything (*) with any lightsaber: schwartz = lightsaber:* # The 'goodguy' role is allowed to 'drive' (action) the winnebago (type) with # license plate 'eagle5' (instance specific id) goodguy = winnebago:drive:eagle5 -
编写Quickstart类
public class Quickstart { private static final transient Logger log = LoggerFactory.getLogger(Quickstart.class); public static void main(String[] args) { // The easiest way to create a Shiro SecurityManager with configured // realms, users, roles and permissions is to use the simple INI config. // We'll do that by using a factory that can ingest a .ini file and // return a SecurityManager instance: // Use the shiro.ini file at the root of the classpath // (file: and url: prefixes load from files and urls respectively): DefaultSecurityManager defaultSecurityManager=new DefaultSecurityManager(); IniRealm iniRealm=new IniRealm("classpath:shiro.ini"); defaultSecurityManager.setRealm(iniRealm); // for this simple example quickstart, make the SecurityManager // accessible as a JVM singleton. Most applications wouldn't do this // and instead rely on their container configuration or web.xml for // webapps. That is outside the scope of this simple quickstart, so // we'll just do the bare minimum so you can continue to get a feel // for things. SecurityUtils.setSecurityManager(defaultSecurityManager); // Now that a simple Shiro environment is set up, let's see what you can do: // get the currently executing user: Subject currentUser = SecurityUtils.getSubject(); // Do some stuff with a Session (no need for a web or EJB container!!!) Session session = currentUser.getSession(); session.setAttribute("someKey", "aValue"); String value = (String) session.getAttribute("someKey"); if (value.equals("aValue")) { log.info("Retrieved the correct value! [" + value + "]"); } // let's login the current user so we can check against roles and permissions: if (!currentUser.isAuthenticated()) { UsernamePasswordToken token = new UsernamePasswordToken("lonestarr", "vespa"); token.setRememberMe(true); try { currentUser.login(token); } catch (UnknownAccountException uae) { log.info("There is no user with username of " + token.getPrincipal()); } catch (IncorrectCredentialsException ice) { log.info("Password for account " + token.getPrincipal() + " was incorrect!"); } catch (LockedAccountException lae) { log.info("The account for username " + token.getPrincipal() + " is locked. " + "Please contact your administrator to unlock it."); } // ... catch more exceptions here (maybe custom ones specific to your application? catch (AuthenticationException ae) { //unexpected condition? error? } } //say who they are: //print their identifying principal (in this case, a username): log.info("User [" + currentUser.getPrincipal() + "] logged in successfully."); //test a role: if (currentUser.hasRole("schwartz")) { log.info("May the Schwartz be with you!"); } else { log.info("Hello, mere mortal."); } //test a typed permission (not instance-level) if (currentUser.isPermitted("lightsaber:wield")) { log.info("You may use a lightsaber ring. Use it wisely."); } else { log.info("Sorry, lightsaber rings are for schwartz masters only."); } //a (very powerful) Instance Level permission: if (currentUser.isPermitted("winnebago:drive:eagle5")) { log.info("You are permitted to 'drive' the winnebago with license plate (id) 'eagle5'. " + "Here are the keys - have fun!"); } else { log.info("Sorry, you aren't allowed to drive the 'eagle5' winnebago!"); } //all done - log out! currentUser.logout(); System.exit(0); } } -
运行Quickstart类打印shiro基础信息
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6.2、springboot整合shiro环境搭建
-
导入依赖
<dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-webartifactId> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-testartifactId> <scope>testscope> dependency> <dependency> <groupId>org.apache.shirogroupId> <artifactId>shiro-springartifactId> <version>1.4.1version> dependency> <dependency> <groupId>org.projectlombokgroupId> <artifactId>lombokartifactId> dependency> <dependency> <groupId>mysqlgroupId> <artifactId>mysql-connector-javaartifactId> dependency> <dependency> <groupId>log4jgroupId> <artifactId>log4jartifactId> <version>1.2.17version> dependency> <dependency> <groupId>com.alibabagroupId> <artifactId>druidartifactId> <version>1.1.23version> dependency> <dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-thymeleafartifactId> dependency> <dependency> <groupId>org.mybatis.spring.bootgroupId> <artifactId>mybatis-spring-boot-starterartifactId> <version>2.1.3version> dependency> <dependency> <groupId>com.github.theborakompanionigroupId> <artifactId>thymeleaf-extras-shiroartifactId> <version>2.0.0version> <scope>compilescope> dependency> -
MyController
@Controller public class MyController { @RequestMapping({"/","/index"}) public String toIndex(Model model){ model.addAttribute("msg","hello,shiro"); return "index"; } @RequestMapping("/user/add") public String add(){ return "user/add"; } @RequestMapping("/user/update") public String update(){ return "user/update"; } @RequestMapping("/toLogin") public String toLogin(){ return "login"; } @RequestMapping("/login") public String login(String username,String password,Model model) { //获取当前用户 Subject subject = SecurityUtils.getSubject(); //封装用户的登录数据 UsernamePasswordToken usernamePasswordToken = new UsernamePasswordToken(username, password); // 验证登录 try { // 执行登录操作，跨类调用 subject.login(usernamePasswordToken); model.addAttribute("msg", "成功登录"); return "index"; } catch (UnknownAccountException uae) { model.addAttribute("msg", "用户名错误"); return "login"; } catch (IncorrectCredentialsException ice) { model.addAttribute("msg", "用户密码错误"); return "login"; } } @RequestMapping("/noauth") @ResponseBody public String unauthorized(){ return "未经授权无法访问"; } } -
ShiroConfig配置类
@Configuration public class ShiroConfig { //第三步：创建 ShiroFilterFactoryBean @Bean public ShiroFilterFactoryBean getShiroFilterFactoryBean(@Qualifier("getDefaultWebSecurityManager") DefaultWebSecurityManager defaultWebSecurityManager){ ShiroFilterFactoryBean bean = new ShiroFilterFactoryBean(); //设置安全管理器 bean.setSecurityManager(defaultWebSecurityManager); //添加shiro的内置过滤器 /* anon:无需认证就可以访问 authc:必须认证了才能访问 user:必须拥有"记住我"功能才能用 perms:拥有对某个资源的权限才能访问 role:拥有某个角色权限才能访问 */ //拦截 Map<String,String> filterMap = new LinkedHashMap<String,String>(); //授权，正常的情况下，没有权限会跳转到未授权页面 filterMap.put("/user/add","perms[user:add]"); filterMap.put("/user/update","perms[user:update]"); filterMap.put("/user/*","authc"); bean.setFilterChainDefinitionMap(filterMap); //设置登录的请求 bean.setLoginUrl("/toLogin"); //设置未授权页面 bean.setUnauthorizedUrl("/noauth"); return bean; } //第二步：创建 DefaultWebSecurityManager @Bean public DefaultWebSecurityManager getDefaultWebSecurityManager(@Qualifier("userRealm") UserRealm userRealm){ DefaultWebSecurityManager securityManager = new DefaultWebSecurityManager(); //关联UserRealm securityManager.setRealm(userRealm); return securityManager; } //第一步：创建 realm 对象 自定义 @Bean public UserRealm userRealm(){ return new UserRealm(); } //整合ShiroDialect 用来整合Shiro和Thymeleaf @Bean public ShiroDialect getShiroDialect(){ return new ShiroDialect(); } } -
shiro配置类需要的UserRealm类
//自定义 继承AuthorizingRealm public class UserRealm extends AuthorizingRealm { @Autowired private UserService userService; //授权 protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) { SimpleAuthorizationInfo info = new SimpleAuthorizationInfo(); //这样是写死的，只要用户认证成功以后进来，这里给予权限就代表所有用户都拥有此权限 // info.addStringPermission("user:add"); //拿到当前登录的对象 Subject subject = SecurityUtils.getSubject(); User currentUser = (User) subject.getPrincipal();//拿到user对象 //设置当前用户的权限 info.addStringPermission(currentUser.getPerms()); return info; } //认证 protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException { // 模拟数据库中查出用户名、密码 UsernamePasswordToken userToken = (UsernamePasswordToken) authenticationToken; User user = userService.queryUserByName(userToken.getUsername()); if(user == null){//没有这个人 return null; } Subject currentSubject= SecurityUtils.getSubject(); Session session = currentSubject.getSession(); session.setAttribute("loginUser",user); // 密码验证,shiro完成，不需要用户判断.直接返回 return new SimpleAuthenticationInfo(user, user.getPwd(), ""); } } -
application.yaml
# 整合数据源 spring: datasource: username: root password: root url: jdbc:mysql://localhost:3306/mybatis?userUnicode=true&chacacterEncoding=utf-8&serverTimezone=UTC # Springboot使用 com.mysql.cj.jdbc.Driver 针对Mysql8以上，5可能会有bug driver-class-name: com.mysql.cj.jdbc.Driver # 整合mybatis mybatis: type-aliases-package: com.luffy.shirospringboot.pojo # 解决绑定异常：mapper.xml最好和接口的包名路径一致 mapper-locations: classpath:mapper/*.xml #SpringBoot默认是不注入这些的，需要自己绑定 #druid数据源专有配置 initialSize: 5 minIdle: 5 maxActive: 20 maxWait: 60000 timeBetweenEvictionRunsMillis: 60000 minEvictableIdleTimeMillis: 300000 validationQuery: SELECT 1 FROM DUAL testWhileIdle: true testOnBorrow: false testOnReturn: false poolPreparedStatements: true #配置监控统计拦截的filters，stat：监控统计、log4j：日志记录、wall：防御sql注入 #如果允许报错，java.lang.ClassNotFoundException: org.apache.Log4j.Properity #则导入log4j 依赖就行 filters: stat,wall,log4j maxPoolPreparedStatementPerConnectionSize: 20 useGlobalDataSourceStat: true connectionoProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=500 -
index.html
DOCTYPE html> <html lang="en" xmlns:shiro="http://www.w3.org/1999/xhtml"> <head> <meta charset="UTF-8"> <title>Titletitle> head> <body> <h1>homeh1> <div th:if="${session.loginUser==null}"> <a th:href="@{/toLogin}">登录a> div> <p th:text="${msg}">p> <div shiro:hasPermission="user:add"> <a th:href="@{/user/add}">adda> div> <div shiro:hasPermission="user:update"> <a th:href="@{/user/update}">updatea> div> body> html> -
login.html
DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Titletitle> head> <body> <h1>loginh1> <p th:text="${msg}" style="color: red">p> <form th:action="@{/login}"> <p>username:<input type="text" name="username">p> <p>password:<input type="text" name="password">p> <p>LOGIN<input type="submit">p> form> body> html>
7、Swagger
7.1、 介绍
swagger号称世界上最流行的API框架，API文档与API定义同步更新，直接运行，支持多种语言。
在项目中使用swagger需要Springfox（2.x版本）:
- swagger2
- swagger-ui
7.2、集成
-
导入依赖
<dependency> <groupId>io.springfoxgroupId> <artifactId>springfox-swagger2artifactId> <version>3.0.0version> dependency> <dependency> <groupId>io.springfoxgroupId> <artifactId>springfox-swagger-uiartifactId> <version>3.0.0version> dependency> <dependency> <groupId>io.springfoxgroupId> <artifactId>springfox-boot-starterartifactId> <version>3.0.0version> dependency> -
controller类
@RestController public class HelloController { @RequestMapping(value = "/hello") public String hello(){ return "hello"; } } -
编写SwaggerConfig配置类
@Configuration @EnableSwagger2 //开启Swagger2 public class SwaggerConfig { } -
访问：
http://localhost:端口号/swagger-ui/index.html，(注意swagger2.x版本中访问的地址的为http://localhost:端口号/swagger-ui.html)，即可访问Swagger首页 -
如果Swagger3.0版本跟Springboot不匹配，以下是匹配版本号（不想降低Springboot版本号也有别的解决方法自行百度）
Spring Boot版本 Swagger 版本 2.5.6 2.9.2
7.3、配置Swagger信息
-
config配置类添加
@Bean public Docket docket() { return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo()); } //配置文档信息 private ApiInfo apiInfo() { Contact contact = new Contact("路飞", "http://www.baidu.com/", "[email protected]"); return new ApiInfo( "Swagger学习", // 标题 "学习演示如何配置Swagger", // 描述 "v1.0", // 版本 "http://terms.service.url/组织链接", // 组织链接 contact, // 联系人信息 "Apach 2.0 许可", // 许可 "许可链接", // 许可连接 new ArrayList<>()// 扩展 ); }
7.4、配置扫描接口及开关
-
构建Docket时通过select()方法配置怎么扫描接口
@Bean public Docket docket(Environment environment) { return new Docket(DocumentationType.SWAGGER_2) .apiInfo(apiInfo()) .enable(false) //配置是否启用Swagger，如果是false，在浏览器将无法访问 .select()// 通过.select()方法，去配置扫描接口,RequestHandlerSelectors配置如何扫描接口 .apis(RequestHandlerSelectors.basePackage("com.luffy.swaggerdemo.controller")) // .paths(PathSelectors.ant("/luffy/swaggerdemo/**")) .build(); // RequestHandlerSelectors的所有扫描方式: // any() // 扫描所有，项目中的所有接口都会被扫描到 // none() // 不扫描接口 // // 通过方法上的注解扫描，如withMethodAnnotation(GetMapping.class)只扫描get请求 // withMethodAnnotation(final Class annotation) // // 通过类上的注解扫描，如.withClassAnnotation(Controller.class)只扫描有controller注解的类中的接口 // withClassAnnotation(final Class annotation) // basePackage(final String basePackage) // 根据包路径扫描接口 // paths(PathSelectors.ant("/luffy/swaggerdemo/**")) //过滤什么路径：过滤/luffy/swaggerdemo下的所有路径 }
7.5、Swagger在生产环境中使用，在发布的时候不使用（问题）
-
配置几个不同的properties环境，在总的properties配置使用的环境
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-
config配置类，根据显示的环境是否能够找到返回布尔值提供给enable方法决定是否开启swagger
@Bean public Docket docket(Environment environment) { // 设置要显示swagger的环境 Profiles of = Profiles.of("dev", "test"); // 判断当前是否处于该环境 // 通过 enable() 接收此参数判断是否要显示 boolean flag = environment.acceptsProfiles(of); return new Docket(DocumentationType.SWAGGER_2) .apiInfo(apiInfo()) .enable(flag) //配置是否启用Swagger，如果是false，在浏览器将无法访问 .select()// 通过.select()方法，去配置扫描接口,RequestHandlerSelectors配置如何扫描接口 .apis(RequestHandlerSelectors.basePackage("com.luffy.swaggerdemo.controller")) // .paths(PathSelectors.ant("/luffy/swaggerdemo/**")) .build(); // RequestHandlerSelectors的所有扫描方式: // any() // 扫描所有，项目中的所有接口都会被扫描到 // none() // 不扫描接口 // // 通过方法上的注解扫描，如withMethodAnnotation(GetMapping.class)只扫描get请求 // withMethodAnnotation(final Class annotation) // // 通过类上的注解扫描，如.withClassAnnotation(Controller.class)只扫描有controller注解的类中的接口 // withClassAnnotation(final Class annotation) // basePackage(final String basePackage) // 根据包路径扫描接口 // paths(PathSelectors.ant("/luffy/swaggerdemo/**")) //过滤什么路径：过滤/luffy/swaggerdemo下的所有路径 }
8、异步、定时、邮件任务
8.1、异步任务
-
创建一个service
@Service public class AsyncService { @Async public void hello(){ try { Thread.sleep(3000); }catch (Exception e){ } System.out.println("数据正在处理！"); } } -
编写controller
@RestController public class AsyncController { @Autowired private AsyncService asyncService; @RequestMapping("/hello") public String hello(){ asyncService.hello(); return "OK!"; } } -
SpringbootTaskApplication主启动类
@EnableAsync @SpringBootApplication public class Springboot09TestApplication { public static void main(String[] args) { SpringApplication.run(Springboot09TestApplication.class, args); } } -
@EnableAsync注解：启动异步
-
@Async注解：标记一个方法为异步
-
一般一个请求执行以后要等待返回结果成功后才会返回对应界面，异步任务即是先返回成功界面再继续执行请求任务
8.2、邮件任务
-
导入依赖
<dependency> <groupId>org.springframework.bootgroupId> <artifactId>spring-boot-starter-mailartifactId> dependency> -
application.properties文件配置
[email protected] spring.mail.password=dvfdnthbsjjreaei spring.mail.host=smtp.qq.com # qq需要配置ssl spring.mail.properties.mail.smtp.ssl.enable=true -
测试类
@SpringBootTest class Springboot09TestApplicationTests { public static void main(String[] args) { } @Autowired JavaMailSenderImpl mailSender; @Test public void contextLoads() { //邮件设置1：一个简单的邮件 SimpleMailMessage message = new SimpleMailMessage(); message.setSubject("通知-明天来狂神这听课"); message.setText("今晚7:30开会"); message.setTo("[email protected]"); message.setFrom("[email protected]"); mailSender.send(message); } @Test public void contextLoads2() throws MessagingException { //邮件设置2：一个复杂的邮件 MimeMessage mimeMessage = mailSender.createMimeMessage(); MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true); helper.setSubject("通知-明天来狂神这听课"); helper.setText("今天 7:30来开会",true); //发送附件 helper.addAttachment("1.jpg",new File("E:\\图片\\1.jpg")); helper.setTo("[email protected]"); helper.setFrom("[email protected]"); mailSender.send(mimeMessage); } }
8.3、定时任务
项目开发中经常需要执行一些定时任务，比如需要在每天凌晨的时候，分析一次前一天的日志信息，Spring为我们提供了异步执行任务调度的方式，提供了两个接口。
- TaskExecutor接口
- TaskScheduler接口
两个注解：
- @EnableScheduling
- @Scheduled
使用方式：
-
Springboot09TestApplication
@EnableAsync//开启异步注解功能 @EnableScheduling //开启基于注解的定时任务 @SpringBootApplication public class Springboot09TestApplication { public static void main(String[] args) { SpringApplication.run(Springboot09TestApplication.class, args); } } -
Service类
@Service public class ScheduledService { //秒 分 时 日 月 周几 //0 * * * * MON-FRI //注意cron表达式的用法； @Scheduled(cron = "0/2 * * * * ?") public void hello(){ System.out.println("hello....."); } /* （1）0/2 * * * * ? 表示每2秒 执行任务 （1）0 0/2 * * * ? 表示每2分钟 执行任务 （1）0 0 2 1 * ? 表示在每月的1日的凌晨2点调整任务 （2）0 15 10 ? * MON-FRI 表示周一到周五每天上午10:15执行作业 （3）0 15 10 ? 6L 2002-2006 表示2002-2006年的每个月的最后一个星期五上午10:15执行作 （4）0 0 10,14,16 * * ? 每天上午10点，下午2点，4点 （5）0 0/30 9-17 * * ? 朝九晚五工作时间内每半小时 （6）0 0 12 ? * WED 表示每个星期三中午12点 （7）0 0 12 * * ? 每天中午12点触发 （8）0 15 10 ? * * 每天上午10:15触发 （9）0 15 10 * * ? 每天上午10:15触发 （10）0 15 10 * * ? 每天上午10:15触发 （11）0 15 10 * * ? 2005 2005年的每天上午10:15触发 （12）0 * 14 * * ? 在每天下午2点到下午2:59期间的每1分钟触发 （13）0 0/5 14 * * ? 在每天下午2点到下午2:55期间的每5分钟触发 （14）0 0/5 14,18 * * ? 在每天下午2点到2:55期间和下午6点到6:55期间的每5分钟触发 （15）0 0-5 14 * * ? 在每天下午2点到下午2:05期间的每1分钟触发 （16）0 10,44 14 ? 3 WED 每年三月的星期三的下午2:10和2:44触发 （17）0 15 10 ? * MON-FRI 周一至周五的上午10:15触发 （18）0 15 10 15 * ? 每月15日上午10:15触发 （19）0 15 10 L * ? 每月最后一日的上午10:15触发 （20）0 15 10 ? * 6L 每月的最后一个星期五上午10:15触发 （21）0 15 10 ? * 6L 2002-2005 2002年至2005年的每月的最后一个星期五上午10:15触发 （22）0 15 10 ? * 6#3 每月的第三个星期五上午10:15触发 */ }
9、Dubbo和Zookeeper集成
9.1、什么是分布式系统？
-
分布式系统是若干独立计算机的集合，这些计算机对于用户来说就像单个相关系统
-
分布式系统（distributed system）是建立在网络之上的软件系统。正是因为软件的特性，所以分布式系统具有高度的内聚性和透明性。因此，网络和分布式系统之间的区别更多的在于高层软件（特别是操作系统），而不是硬件。
9.2、安装Zookeeper
-
网址：https://zookeeper.apache.org/（下载带bin的）
-
运行/bin/zkServer.cmd ，初次运行会报错（闪退），在conf下没有zoo.cfg配置文件
-
将conf文件夹下面的zoo_sample.cfg复制一份改名为zoo.cfg
-
运行/bin/zkServer.cmd（服务端）
-
运行zkCli.cmd（客户端）
-
在客户端输入：ls /（列出zookeeper根下保存的所有节点）
-
在客户端输入：create –e /luffy 123（创建一个luffy节点，值为123）
-
在客户端输入：get /luffy（获取/luffy节点的值）
9.3、安装Dubbo-admin
dubbo本身并不是一个服务软件。它其实就是一个jar包，能够帮你的java程序连接到zookeeper，并利用zookeeper消费、提供服务。
但是为了让用户更好的管理监控众多的dubbo服务，官方提供了一个可视化的监控程序dubbo-admin，不过这个监控即使不装也不影响使用。
使用方法
-
下载dubbo-admin
- https://github.com/stackXu/dubbo-admin
-
解压进入目录
- 修改 dubbo-admin\src\main\resources \application.properties 指定zookeeper地址
-
在Dubbo-admin项目目录下打包dubbo-admin
- mvn clean package -Dmaven.test.skip=true
-
执行 dubbo-admin\target 下的dubbo-admin-0.0.1-SNAPSHOT.jar
-
这里给的下载网址直接有jar包，如果zookeeper和dubbo的配置都一致，即可直接运行jar包
-
在jar包目录运行cmd：java -jar dubbo-admin-0.0.1-SNAPSHOT.jar
-
注意：zookeeper服务要开启
-
-
全部执行完访问 http://localhost:7001/ ，输入登录账户和密码，默认的是root-root，即可显示dubbo-admin界面
9.4、服务注册发现实战
1. 启动zookeeper ！
2. IDEA创建一个空项目；
3.创建一个模块，实现服务提供者：provider-server ， 选择web依赖即可
卖票接口
package com.luffy.service;
public interface TicketService {
public String getTicket();
}
卖票实现类
package com.luffy.service;
public class TicketServiceImpl implements TicketService {
@Override
public String getTicket() {
return "《狂神说Java》";
}
}
提供者依赖
<dependency>
<groupId>org.apache.dubbogroupId>
<artifactId>dubbo-spring-boot-starterartifactId>
<version>2.7.3version>
dependency>
<dependency>
<groupId>com.github.sgroschupfgroupId>
<artifactId>zkclientartifactId>
<version>0.1version>
dependency>
<dependency>
<groupId>org.apache.curatorgroupId>
<artifactId>curator-frameworkartifactId>
<version>2.12.0version>
dependency>
<dependency>
<groupId>org.apache.curatorgroupId>
<artifactId>curator-recipesartifactId>
<version>2.12.0version>
dependency>
<dependency>
<groupId>org.apache.zookeepergroupId>
<artifactId>zookeeperartifactId>
<version>3.4.14version>
<exclusions>
<exclusion>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
exclusion>
exclusions>
dependency>
提供者application.properties
#当前应用名字
dubbo.application.name=provider-server
#注册中心地址
dubbo.registry.address=zookeeper://127.0.0.1:2181
#扫描指定包下服务
dubbo.scan.base-packages=com.luffy.service
4.创建一个模块，实现服务消费者：consumer-server ， 选择web依赖即可
5.项目创建完毕，我们写一个服务，比如用户的服务
消费者依赖
<dependency>
<groupId>org.apache.dubbogroupId>
<artifactId>dubbo-spring-boot-starterartifactId>
<version>2.7.3version>
dependency>
<dependency>
<groupId>com.github.sgroschupfgroupId>
<artifactId>zkclientartifactId>
<version>0.1version>
dependency>
<dependency>
<groupId>org.apache.curatorgroupId>
<artifactId>curator-frameworkartifactId>
<version>2.12.0version>
dependency>
<dependency>
<groupId>org.apache.curatorgroupId>
<artifactId>curator-recipesartifactId>
<version>2.12.0version>
dependency>
<dependency>
<groupId>org.apache.zookeepergroupId>
<artifactId>zookeeperartifactId>
<version>3.4.14version>
<exclusions>
<exclusion>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
exclusion>
exclusions>
dependency>
消费者application.properties
#当前应用名字
dubbo.application.name=consumer-server
#注册中心地址
dubbo.registry.address=zookeeper://127.0.0.1:2181
消费者的服务类
package com.luffy.service;
import com.guo.provider.service.TicketService;
import org.apache.dubbo.config.annotation.Reference;
import org.springframework.stereotype.Service;
@Service //注入到容器中
public class UserService {
@Reference //远程引用指定的服务，他会按照全类名进行匹配，看谁给注册中心注册了这个全类名
TicketService ticketService;
public void buyTicket(){
String ticket = ticketService.getTicket();
System.out.println("在注册中心买到"+ticket);
}
}
6.编写测试类
@RunWith(SpringRunner.class)
@SpringBootTest
public class ConsumerServerApplicationTests {
@Autowired
UserService userService;
@Test
public void contextLoads() {
userService.buyTicket();
}
}