最近三个多月，利用空闲时间自学java，利用周日休息，心血来潮，做了一个简单项目案例。项目主要用到了springboot、mybatis、druid、mysql技术。废话不多说了，先把建项目过程，贴出来。
新建工程
create_project_1.png
create_project_2.png
create_project_3.png
create_project_4.png
create_project_5.png
create_project_6.png
点击完成按钮，会生成examedemo项目，目录结构如下图所示：
image.png
image.png
新建application.yml文件
application.yml文件配置项
server:
port: 8082
undertow:
io-threads: 15
spring:
datasource:
type: com.alibaba.druid.pool.DruidDataSource
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://127.0.0.1:3306/zhixiaole_test?useUnicode=true&characterEncoding=UTF-8&autoReconnect=true&failOverReadOnly=false
username: root
password: root
druid:
#监控统计拦截的过滤器 不加监控界面sql无法统计 wall用于防火墙
filters: stat,wall,log4j,config
#最大连接数
max-active: 100
#初始化大小
initial-size: 1
#获取连接最大等待时间
max-wait: 60000
min-idle: 1
#间隔多久检测一次需要关闭的空闲连接 毫秒
time-between-eviction-runs-millis: 60000
#连接在连接池中最小生存的时间，毫秒
min-evictable-idle-time-millis: 300000
validation-query: select 'x'
test-while-idle: true
test-on-borrow: false
test-on-return: false
pool-prepared-statements: true
max-open-prepared-statements: 50
max-pool-prepared-statement-per-connection-size: 20
web-stat-filter:
exclusions: "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"
url-pattern: /*
stat-view-servlet:
#白名单IP
allow: 127.0.0.1
#黑名单IP
deny: 120.77.85.84
#登录账号和密码
login-username: admin
login-password: admin
#启用重置数据功能
reset-enable: true
thymeleaf:
prefix: classpath:/templates/
mode: HTML
encoding: utf-8
content-type: text/html
cache: false
mybatis:
config-location: classpath:/mybatis/mybatis.cfg.xml
type-aliases-package: com.examedemo.exame.model
mapper-locations: classpath*:/mybatis/mapper/*Mapper.xml
# configuration:
# log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
logging:
level:
com.examedemo.exame.mapper : debug
pom.xml文件
4.0.0
org.springframework.boot
spring-boot-starter-parent
2.1.6.RELEASE
com.examedemo
exame
0.0.1-SNAPSHOT
exame
Demo project for Spring Boot
1.8
org.springframework.boot
spring-boot-starter-thymeleaf
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-devtools
runtime
true
mysql
mysql-connector-java
runtime
org.springframework.boot
spring-boot-starter-test
test
org.junit.vintage
junit-vintage-engine
com.alibaba
druid
1.1.10
org.mybatis.spring.boot
mybatis-spring-boot-starter
2.0.1
org.springframework.boot
spring-boot-maven-plugin
mybatis.cfg.xml配置文件代码
user_weixin
表结构如下
-- ----------------------------
-- Table structure for user_weixin
-- ----------------------------
DROP TABLE IF EXISTS `user_weixin`;
CREATE TABLE `user_weixin` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`userid` int(11) DEFAULT NULL COMMENT '用户id(只有填写基本资料后才会创建)',
`nickname` varchar(100) DEFAULT NULL COMMENT '昵称',
`openid` varchar(100) DEFAULT NULL COMMENT '微信OpenID',
`unionid` varchar(50) DEFAULT NULL COMMENT 'unionId',
`sex` int(11) DEFAULT NULL COMMENT '性别',
`city` varchar(20) DEFAULT NULL COMMENT '所在城市',
`province` varchar(20) DEFAULT NULL COMMENT '所在省份',
`country` varchar(20) DEFAULT NULL COMMENT '所在国家',
`avatar_url` varchar(200) DEFAULT NULL COMMENT '用户头像',
`reg_time` datetime DEFAULT NULL COMMENT '注册时间',
`mobile` varchar(12) DEFAULT NULL,
`snsid` int(11) DEFAULT '0' COMMENT 'bbs系统用户编号',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=244 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci COMMENT='微信用户表';
IUserWeixinMapper.xml
ExameApplication.java
package com.examedemo.exame;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
@MapperScan(basePackages = "com.examedemo.exame.mapper")
public class ExameApplication {
public static void main(String[] args) {
SpringApplication.run(ExameApplication.class, args);
}
}
DruidConfig.java
package com.examedemo.exame.config;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import javax.sql.DataSource;
import java.sql.SQLException;
@Configuration
public class DruidConfig {
@Bean
public ServletRegistrationBean druidServlet(){
ServletRegistrationBean reg = new ServletRegistrationBean();
reg.setServlet(new StatViewServlet());
reg.addUrlMappings("/druid/*");
reg.addInitParameter("allow", "127.0.0.1");
reg.addInitParameter("deny","");
reg.addInitParameter("loginUsername", "admin");
reg.addInitParameter("loginPassword", "admin");
return reg;
}
@Bean
public FilterRegistrationBean filterRegistrationBean() {
FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
filterRegistrationBean.setFilter(new WebStatFilter());
filterRegistrationBean.addUrlPatterns("/*");
filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
return filterRegistrationBean;
}
@Bean(name="dataSource")
public DataSource druidDataSource(
@Value("${spring.datasource.driver-class-name}") String driver,
@Value("${spring.datasource.url}") String url,
@Value("${spring.datasource.username}") String username,
@Value("${spring.datasource.password}") String password) {
DruidDataSource druidDataSource = new DruidDataSource();
druidDataSource.setDriverClassName(driver);
druidDataSource.setUrl(url);
druidDataSource.setUsername(username);
druidDataSource.setPassword(password);
try {
druidDataSource.setFilters("stat, wall");
} catch (SQLException e) {
e.printStackTrace();
}
return druidDataSource;
}
}
IndexController.java
package com.examedemo.exame.controllers.admin;
import com.examedemo.exame.model.UserWeixinModel;
import com.examedemo.exame.service.impl.UserWeixinService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import java.util.List;
@Controller
public class IndexController {
@Autowired
private UserWeixinService userWeixinService;
@RequestMapping(value = "/index",method = RequestMethod.GET)
@ResponseBody
public String index(){
return "hello world";
}
@ResponseBody
@RequestMapping(value = "/users",method = RequestMethod.GET)
public List users(){
HttpHeaders httpHeaders = new HttpHeaders();
httpHeaders.add("content-type","application/json");
return userWeixinService.getList();
}
}
IUserWeixinMapper.java
package com.examedemo.exame.mapper;
import com.examedemo.exame.model.UserWeixinModel;
import org.apache.ibatis.annotations.Mapper;
import java.util.List;
public interface IUserWeixinMapper {
public List findAll();
}
UserWeixinModel.java
package com.examedemo.exame.model;
import java.io.Serializable;
public class UserWeixinModel implements Serializable {
private Integer id;
private Integer userid;
private String nickname;
private String openid;
private Integer sex;
private String city;
private String province;
private String country;
private String avatarUrl;
private String regTime;
private String mobile;
private Integer snsid;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public Integer getUserid() {
return userid;
}
public void setUserid(Integer userid) {
this.userid = userid;
}
public String getNickname() {
return nickname;
}
public void setNickname(String nickname) {
this.nickname = nickname;
}
public String getOpenid() {
return openid;
}
public void setOpenid(String openid) {
this.openid = openid;
}
public long getSex() {
return sex;
}
public void setSex(Integer sex) {
this.sex = sex;
}
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getProvince() {
return province;
}
public void setProvince(String province) {
this.province = province;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getAvatarUrl() {
return avatarUrl;
}
public void setAvatarUrl(String avatarUrl) {
this.avatarUrl = avatarUrl;
}
public String getRegTime() {
return regTime;
}
public void setRegTime(String regTime) {
this.regTime = regTime;
}
public String getMobile() {
return mobile;
}
public void setMobile(String mobile) {
this.mobile = mobile;
}
public Integer getSnsid() {
return snsid;
}
public void setSnsid(Integer snsid) {
this.snsid = snsid;
}
}
IUserWeixinService.java
package com.examedemo.exame.service;
import com.examedemo.exame.model.UserWeixinModel;
import java.util.List;
public interface IUserWeixinService {
public List getList();
}
UserWeixinService.java
package com.examedemo.exame.service.impl;
import com.examedemo.exame.mapper.IUserWeixinMapper;
import com.examedemo.exame.model.UserWeixinModel;
import com.examedemo.exame.service.IUserWeixinService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class UserWeixinService implements IUserWeixinService {
@Autowired
private IUserWeixinMapper userWeixinMapper;
public List getList(){
return userWeixinMapper.findAll();
}
}