Jar导入版本转换为maven版本(掌握)
SSM抽取Base(掌握)
Maven多模块(掌握)
前后端分离后台-crud实现(掌握)
前后端分离前台基于vue-element-admin模板-crud实现(掌握)
在昨天的课程中完成了前后端分析实现,但是有以下几个问题:
1)后端环境没有实现
2)前端环境管理太丑
所以今天我们要导入一个别人写好的基于vue-cli+elementui的管理界面,并且使用自己写的后台来实现前后端分离crud。
File->New->Project
创建好项目后,在src/main目录下创建java和resources
File->Project Structrue
选中main,右键new folder,然后分别设置为Sources和Resources
创建测试的目录结构
到这一步,我们的一个基本的Maven的WEB项目就创建成功。
1.2、配置Tomcat
启动测试index.jsp
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<groupId>cn.itsourcegroupId>
<artifactId>crmartifactId>
<version>1.0-SNAPSHOTversion>
<packaging>warpackaging>
<name>crmname>
<url>http://www.example.comurl>
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<maven.compiler.source>1.7maven.compiler.source>
<maven.compiler.target>1.7maven.compiler.target>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<spring.version>4.1.2.RELEASEspring.version>
<mybatis.version>3.2.1mybatis.version>
<slf4j.version>1.7.2slf4j.version>
<log4j.version>1.2.17log4j.version>
<jackson.version>2.5.0jackson.version>
properties>
<dependencies>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>4.11version>
<scope>testscope>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aopartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aspectsartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-beansartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-contextartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-coreartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-expressionartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-testartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-txartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>commons-logginggroupId>
<artifactId>commons-loggingartifactId>
<version>1.1.1version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>aopalliancegroupId>
<artifactId>aopallianceartifactId>
<version>1.0version>
dependency>
<dependency>
<groupId>org.aspectjgroupId>
<artifactId>aspectjweaverartifactId>
<version>1.6.8version>
dependency>
<dependency>
<groupId>commons-fileuploadgroupId>
<artifactId>commons-fileuploadartifactId>
<version>1.3.1version>
dependency>
<dependency>
<groupId>commons-iogroupId>
<artifactId>commons-ioartifactId>
<version>2.2version>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-databindartifactId>
<version>${jackson.version}version>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-coreartifactId>
<version>${jackson.version}version>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-annotationsartifactId>
<version>${jackson.version}version>
dependency>
<dependency>
<groupId>commons-dbcpgroupId>
<artifactId>commons-dbcpartifactId>
<version>1.2.2version>
dependency>
<dependency>
<groupId>commons-poolgroupId>
<artifactId>commons-poolartifactId>
<version>1.5.3version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>${mybatis.version}version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>1.2.0version>
dependency>
<dependency>
<groupId>log4jgroupId>
<artifactId>log4jartifactId>
<version>${log4j.version}version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-apiartifactId>
<version>${slf4j.version}version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
<version>${slf4j.version}version>
<scope>testscope>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>5.1.46version>
dependency>
<dependency>
<groupId>jstlgroupId>
<artifactId>jstlartifactId>
<version>1.2version>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>javax.servlet-apiartifactId>
<version>3.0.1version>
<scope>providedscope>
dependency>
<dependency>
<groupId>javax.servlet.jspgroupId>
<artifactId>jsp-apiartifactId>
<version>2.2version>
<scope>providedscope>
dependency>
dependencies>
<build>
<finalName>crmfinalName>
<pluginManagement>
<plugins>
<plugin>
<artifactId>maven-clean-pluginartifactId>
<version>3.0.0version>
plugin>
<plugin>
<artifactId>maven-resources-pluginartifactId>
<version>3.0.2version>
plugin>
<plugin>
<artifactId>maven-compiler-pluginartifactId>
<version>3.7.0version>
plugin>
<plugin>
<artifactId>maven-surefire-pluginartifactId>
<version>2.20.1version>
plugin>
<plugin>
<artifactId>maven-war-pluginartifactId>
<version>3.2.0version>
plugin>
<plugin>
<artifactId>maven-install-pluginartifactId>
<version>2.5.2version>
plugin>
<plugin>
<artifactId>maven-deploy-pluginartifactId>
<version>2.8.2version>
plugin>
plugins>
pluginManagement>
build>
project>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<display-name>crmdisplay-name>
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:applicationContext.xmlparam-value>
context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<servlet>
<servlet-name>springmvcservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:applicationContext-mvc.xmlparam-value>
init-param>
<load-on-startup>1load-on-startup>
servlet>
<servlet-mapping>
<servlet-name>springmvcservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
<filter>
<filter-name>encodingFilterfilter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
<init-param>
<param-name>encodingparam-name>
<param-value>UTF-8param-value>
init-param>
filter>
<filter-mapping>
<filter-name>encodingFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
web-app>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<context:component-scan base-package="cn.itsource.crm.web.controller" />
<mvc:annotation-driven/>
<mvc:default-servlet-handler/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
bean>
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="defaultEncoding" value="utf-8" />
<property name="maxUploadSize" value="10485760000" />
bean>
beans>
driver=com.mysql.jdbc.Driver
url=jdbc:mysql:///itsource_dms?useUnicode=true&characterEncoding=utf-8
username=root
password=123456
log4j.rootLogger=ERROR, stdout
#log4j.rootLogger=NONE
log4j.logger.cn.itsource=TRACE
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
2.6、applicationContext.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<context:component-scan base-package="cn.itsource.crm.service"/>
<context:property-placeholder location="classpath:db.properties" />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="maxActive" value="150" />
<property name="minIdle" value="5" />
<property name="maxIdle" value="20" />
<property name="initialSize" value="30" />
<property name="maxWait" value="1000" />
<property name="timeBetweenEvictionRunsMillis" value="10000" />
<property name="numTestsPerEvictionRun" value="10" />
<property name="minEvictableIdleTimeMillis" value="10000" />
<property name="validationQuery" value="SELECT NOW() FROM DUAL" />
bean>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mapperLocations" value="classpath*:cn/itsource/crm/mapper/*Mapper.xml" />
<property name="typeAliasesPackage">
<value>
cn.itsource.crm.domain
Cn.itsource.crm.query
value>
property>
bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="cn.itsource.crm.mapper">property>
bean>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
bean>
<tx:annotation-driven transaction-manager="transactionManager"/>
beans>
EmployeeMapper.xml
<mapper namespace="cn.itsource.mapper.EmployeeMapper">
<select id="findAll" resultType="Employee">
select * from employee
select>
mapper>
正常访问controller
package cn.itsource.mapper;
import java.io.Serializable;
import java.util.List;
/**
* 基础Mapper
*/
public interface BaseMapper<T> {
/**
* 保存一个对象
* @param t
*/
void save(T t);
/**
* 移除一个对象
* @param id
*/
void remove(Serializable id);
/**
* 更新一个对象
* @param t
*/
void update(T t);
/**
* 通过id加载一个对象
* @param id
* @return
*/
T loadById(Serializable id);
/**
* 加载所有对象
* @return
*/
List<T> loadAll();
}
package cn.itsource.domain;
public class BaseDomain {
private Long id;
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
}
package cn.itsource.service;
import java.io.Serializable;
import java.util.List;
public interface IBaseService<T> {
/**
* 添加一个对象
* @param t
*/
void add(T t);
/**
* 删除一个对象
* @param id
*/
void del(Serializable id);
/**
* 更新一个对象
* @param t
*/
void update(T t);
/**
* 通过id获取一个对象
* @param id
* @return
*/
T getById(Serializable id);
/**
* 获取所有对象
* @return
*/
List<T> getAll();
}
package cn.itsource.service.impl;
import cn.itsource.mapper.BaseMapper;
import cn.itsource.service.IBaseService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;
import java.io.Serializable;
import java.util.List;
//不需要加@Service,子类继承是添加
//类级别事务为读事务,分别在增删改的方法上面加写事务
//Propagation.SUPPORTS,
@Transactional(readOnly = true,propagation = Propagation.SUPPORTS)
public class BaseServiceImpl<T> implements IBaseService<T> {
@Autowired
private BaseMapper<T> baseMapper;
// @Transactional(readOnly = false,propagation = Propagation.REQUIRED)
@Transactional
@Override
public void add(T t) {
baseMapper.save(t);
// int i = 1/0;
}
@Transactional
@Override
public void del(Serializable id) {
baseMapper.remove(id);
}
@Transactional
@Override
public void update(T t) {
baseMapper.update(t);
}
@Override
public T getById(Serializable id) {
return baseMapper.loadById(id);
}
@Override
public List<T> getAll() {
return baseMapper.loadAll();
}
}
正常访问
像我们之前的这个项目,很常见的Spring+SpringMVC+Mybatis整合开发的web应用,在这个应用中,我们习惯性的把项目分了这么几层:
(1) Web层,负责与客户端交互,主要是一些Controller类
(2) Service层,处理业务逻辑,放一些Service接口和实现类
(3) Mapper层负责与数据库的交互
(4) Domain层,存放封装数据的实体类
对应的结构图如下:
但随着项目的进行,我们可能遇到下面一系列的问题:
(1) 大部分的domain或者一些service以及mapper在多个项目中是通用的
(2) Pom.xml中的依赖越来越长
(3) Build整个项目的时间越来越长,尽管你只是一直在web层工作,但是不得不build整个项目
(4) 某个模块,比如mapper,你只想让一些经验丰富的人来维护,但是现在每个开发者都能修改这个模块,这导致关键模块的代码质量达不到你的要求
一个大项目拆分为多个小项目(maven模块)组成,而且它们是有依赖关系的.
1.2、结论
开闭原则
对扩展开放
对修改关闭
总而言之,我们前面设计的项目并没有遵循一个很重要的设计原则“高内聚,低耦合”。为了解决这些问题,我们可以使用maven对项目模块进行重新的划分。
使用Maven管理的比较大的项目都是分模块的,每个模块都对应自己的pom.xml,这样方便项目的管理和开发,避免所有的功能都糅合在一起,这也是公司里比较常见的开发模式。
现在,我们对上面的ssm项目进行改造,将web和service和mapper层分成三个模块,再抽出base的几个模块作为公共模块使用,具体模块结构划分如下图所示:
模块名 放那些内容
basic-util 工具类: Ajaxresult PageList StringUtils
basic-core 基础核心:核心实现 baseMapper baseService baseDomain …
项目名-common 项目对应的公共东西,domian,query
项目名-mapper 映射器,*Mapper.java *Mapper.xml
项目名-service 业务模块
项目名-web web模块提供数据(接口层)
还要注意配置文件拆分:
web.xml配置
mvc:web配置
service :service配置
mapper: db,数据源配置,mapper配置
它没有一个java代码,只是用来对子模块分类 类型是pom,war,jar
父亲里面配置一个公共jar给儿子继承
<properties>
<project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
<maven.compiler.source>1.8maven.compiler.source>
<maven.compiler.target>1.8maven.compiler.target>
<spring.version>4.1.2.RELEASEspring.version>
<mybatis.version>3.2.1mybatis.version>
<slf4j.version>1.7.2slf4j.version>
<log4j.version>1.2.17log4j.version>
<jackson.version>2.5.0jackson.version>
properties>
<dependencies>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aopartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aspectsartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-beansartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-contextartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-coreartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-expressionartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-testartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>commons-logginggroupId>
<artifactId>commons-loggingartifactId>
<version>1.1.1version>
dependency>
<dependency>
<groupId>aopalliancegroupId>
<artifactId>aopallianceartifactId>
<version>1.0version>
dependency>
<dependency>
<groupId>org.aspectjgroupId>
<artifactId>aspectjweaverartifactId>
<version>1.6.8version>
dependency>
dependencies>
作为各项目的公共工具的抽取
PageList:total,rows
AjaxResult:success,message
public class AjaxResult {
private boolean success = true;
private String message = "操作成功!";
public boolean isSuccess() {
return success;
}
//链式编程,可以继续. 设置完成后自己对象返回
public AjaxResult setSuccess(boolean success) {
this.success = success;
return this;
}
public String getMessage() {
return message;
}
public AjaxResult setMessage(String message) {
this.message = message;
return this;
}
//默认成功
public AjaxResult() {
}
//失败调用
public AjaxResult(String message) {
this.success = false;
this.message = message;
}
//不要让我创建太多对象
public static AjaxResult me(){
return new AjaxResult();
}
public static void main(String[] args) {
AjaxResult.me().setMessage("xxx").setSuccess(false);
}
}
public class PageList<T> {
//总数
private Long total = 0L;
//当前页数据
private List<T> rows = new ArrayList<T>();
public Long getTotal() {
return total;
}
public void setTotal(Long total) {
this.total = total;
}
public List<T> getRows() {
return rows;
}
public void setRows(List<T> rows) {
this.rows = rows;
}
public PageList() {
}
public PageList(Long total, List<T> rows) {
this.total = total;
this.rows = rows;
}
}
作为各项目的公共的抽取,依赖basic-utils模块
BaseDomain
BaseService
BaseMapper
BaseQuery
public class BaseQuery {
private Long page;
public Long getPage() {
return page;
}
public void setPage(Long page) {
this.page = page;
}
}
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-beansartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-beansartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-txartifactId>
<version>${spring.version}version>
dependency>
crm-common本模块作为一个项目三层的公共部分的抽取,依赖basic-core
在该模块下面创建包
crm-dao本模块作为一个项目持久层,依赖crm-common和basic-core:
包含mapper接口和映射;和持久层的配置
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-txartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>${mybatis.version}version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>1.2.0version>
dependency>
<dependency>
<groupId>log4jgroupId>
<artifactId>log4jartifactId>
<version>${log4j.version}version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-apiartifactId>
<version>${slf4j.version}version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
<version>${slf4j.version}version>
<scope>testscope>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>5.1.46version>
dependency>
<dependency>
<groupId>commons-dbcpgroupId>
<artifactId>commons-dbcpartifactId>
<version>1.2.2version>
dependency>
<dependency>
<groupId>commons-poolgroupId>
<artifactId>commons-poolartifactId>
<version>1.5.3version>
dependency>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<import resource="applicationContext-datasource-dbcp.xml"/>
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="mapperLocations" value="classpath*:cn/itsource/crm1/mapper/*Mapper.xml" />
<property name="typeAliasesPackage">
<value>
cn.itsource.domain
cn.itsource.query
value>
property>
bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="cn.itsource.crm1.mapper">property>
bean>
beans>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<context:property-placeholder location="classpath:db.properties" />
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="maxActive" value="150" />
<property name="minIdle" value="5" />
<property name="maxIdle" value="20" />
<property name="initialSize" value="30" />
<property name="maxWait" value="1000" />
<property name="timeBetweenEvictionRunsMillis" value="10000" />
<property name="numTestsPerEvictionRun" value="10" />
<property name="minEvictableIdleTimeMillis" value="10000" />
<property name="validationQuery" value="SELECT NOW() FROM DUAL" />
bean>
beans>
crm-service本模块作为一个项目业务层,依赖crm-mapper
业务
ApplicationContext-service.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">
<import resource="classpath:applicationContext-mybatis.xml"/>
<context:component-scan base-package="cn.itsource.crm1.service"/>
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
bean>
<tx:annotation-driven transaction-manager="transactionManager"/>
beans>
crm-service本模块作为一个项目表现层,依赖crm-service
而现在我们的整体架构为前后端分离架构,所有的静态资源全部在前端项目中
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>${spring.version}version>
dependency>
<dependency>
<groupId>commons-fileuploadgroupId>
<artifactId>commons-fileuploadartifactId>
<version>1.3.1version>
dependency>
<dependency>
<groupId>commons-iogroupId>
<artifactId>commons-ioartifactId>
<version>2.2version>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-databindartifactId>
<version>${jackson.version}version>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-coreartifactId>
<version>${jackson.version}version>
dependency>
<dependency>
<groupId>com.fasterxml.jackson.coregroupId>
<artifactId>jackson-annotationsartifactId>
<version>${jackson.version}version>
dependency>
<dependency>
<groupId>jstlgroupId>
<artifactId>jstlartifactId>
<version>1.2version>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>javax.servlet-apiartifactId>
<version>3.0.1version>
<scope>providedscope>
dependency>
<dependency>
<groupId>javax.servlet.jspgroupId>
<artifactId>jsp-apiartifactId>
<version>2.2version>
<scope>providedscope>
dependency>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>4.11version>
<scope>testscope>
dependency>
正常访问controller
接口就是提供数据东西.最简单实现接口的方式就是springmvc中controller,是通过restful协议暴露,通过json作为数据传输格式.
restfull就是就是http协议的扩展,是以资源为核心,通过url定位资源,通过不同请求方式表示操作.(
PUT-add添加,
POST-update更新,
DELET-del删除,
GET-获取(查询)一个,
PATCH,查询所有
HEAD,
OPTION
)
接口地址: http地址
参数: {},String long
返回值:{}
package cn.itsource.web.controller;
import cn.itsource.basic.AjaxResult;
import cn.itsource.basic.PageList;
import cn.itsource.domain.Employee;
import cn.itsource.query.EmployeeQuery;
import cn.itsource.service.IEmployeeService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import java.util.List;
/**
* 员工接口:先不考虑持久层
* crud接口
*/
@Controller
@RequestMapping("/employee") //定位资源
public class EmployeeController {
@Autowired
private IEmployeeService employeeService;
//创建员工接口:url 参数,返回值
//@RequestBody 在请求主体里面传递过,前端要传递json就用这种方式
@RequestMapping(method = RequestMethod.PUT)
@ResponseBody
public AjaxResult add(@RequestBody Employee employee)
{
System.out.println("添加成功");
return AjaxResult.me();
}
//删除接口:url 参数,返回值
// 前台传递del /employee/1
@RequestMapping(value = "{id}",method = RequestMethod.DELETE)
@ResponseBody
public AjaxResult del(@PathVariable("id")Long id){
System.out.println("删除成功"+id);
return AjaxResult.me();
}
//删除接口:url 参数,返回值
// 前台传递del /employee/1
@RequestMapping(value = "{id}",method = RequestMethod.POST)
@ResponseBody
public AjaxResult update(@PathVariable("id")Long id,@RequestBody Employee employee){
System.out.println("修改成功"+id+employee);
return AjaxResult.me();
}
//查询一个
@ResponseBody
@RequestMapping(value = "/{id}",method = RequestMethod.GET)
public Employee getById(@PathVariable("id") Long id){
Employee employee = new Employee("zs");
employee.setId(id);
return employee;
}
//查询所有
@ResponseBody
@RequestMapping(method = RequestMethod.PATCH)
public List<Employee> list(){
return employeeService.getAll();
}
// 高级查询
@ResponseBody
@RequestMapping(method = RequestMethod.GET)
public PageList<Employee> query(@RequestBody EmployeeQuery query){
return new PageList<>();
}
}
1)接口测试人员要通过接口描述测试接口 黑盒测试
2)前端开发人员要通过接口描述使用接口.
怎么描述???
1)写接口doc文档
直接罗列所有接口,每个接口有访问地址(访问方式),参数及返回值.
2)可以直接通过后端代码产生能够让前台开发或测试人员能够看懂就ok—swagger文档 json,yml,页面展示 采纳
<springfox.version>2.4.0springfox.version>
properties>
<dependencies>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger2artifactId>
<version>${springfox.version}version>
dependency>
<dependency>
<groupId>io.springfoxgroupId>
<artifactId>springfox-swagger-uiartifactId>
<version>${springfox.version}version>
dependency>
//对swagger进行配置
@Configuration//相当于 applicationContext.xml
@EnableWebMvc
@EnableSwagger2//启动Swagger2
//扫描个包下面controller来生成接口描述
@ComponentScan(basePackages="cn.itsource.web.controller")
public class SwaggerConfig {
//配置文件bean
@Bean
public Docket api(){
return new Docket(DocumentationType.SWAGGER_2)
.apiInfo(this.apiInfo())
.select()
.apis(RequestHandlerSelectors.basePackage("cn.itsource.web.controller"))
.paths(PathSelectors.any())
.build();
}
private ApiInfo apiInfo(){
@SuppressWarnings("deprecation")
ApiInfo info=new ApiInfo(
"itsource20190427crud测试",
"一个完成crud",
"v1",
"http://www.itsource.cn",
"zytest",
"apache",
"http://www.itsource.cn");
return info;
}
}
运行:
在这里插入图片描述
http://localhost/swagger-ui.html
(1)将我们的SwaggerAPI文档扩展名改为yml
http://localhost/v2/api-docs 改为json
(2)在easyMock中点击“设置”选项卡
(3)SwaggerDocs API 选择Upload
(4)将SwaggerAPI文档拖动到上图的虚线区域,点击保存
(5)回到主界面后点击“同步Swagger”
最终产生很多在线接口模拟
我们基于springmvc写的controller对于前端来说就是接口,而且都是通过http协议访问,那后台写完后怎么测试呢?浏览器,只支持get。 要使用一些能够发送http各种请求的工具,其中postman就是很重要的一个。
就是一个工具,可以来发送各种http请求,可以用它来测试http协议接口.
略过
略过
按照restfull规范写一个一个crud接口,通过postman来做接口测试,通过swagger来描述接口.
vue-element-admin 是一个后台前端解决方案,它基于 vue-cli 和 element-ui实现。它使用了最新的前端技术栈,内置了 i18 国际化解决方案,动态路由,权限验证,提炼了典型的业务模型,提供了丰富的功能组件,它可以帮助你快速搭建企业级中后台产品原型。
本项目的定位是后台集成方案,不太适合当基础模板来进行二次开发。因为本项目集成了很多你可能用不到的功能,会造成不少的代码冗余。如果你的项目不关注这方面的问题,也可以直接基于它进行二次开发。
集成方案: vue-element-admin
基础模板: vue-admin-template
桌面终端: electron-vue-admin
Github地址:
https://github.com/PanJiaChen/vue-element-admin
(1)修改:在routes.js的里面修改
{
path: '/',
component: Home,
name: '首页',
iconCls: 'fa fa-bar-chart',
leaf: true,//只有一个节点
children: [
{ path: '/echarts', component: echarts, name: '主页' }
]
},
(2)修改login.vue登录后跳转
this.$router.push({ path: '/echarts' });
routes.js
import Login from './views/Login.vue'
import NotFound from './views/404.vue'
import Home from './views/Home.vue'
import Table from './views/nav1/Table.vue'
import echarts from './views/charts/echarts.vue'
let routes = [
{
path: '/login',
component: Login,
name: '',
hidden: true
},
{
path: '/404',
component: NotFound,
name: '',
hidden: true
},
//{ path: '/main', component: Main },
{
path: '/',
component: Home,
name: '',
iconCls: 'fa fa-address-card',
leaf: true,//只有一个节点
children: [
{ path: '/index', component: echarts, name: '首页' }
]
},
{
path: '/',
component: Home,
name: '系统管理',
iconCls: 'el-icon-message',//图标样式class
children: [
{ path: '/employee', component: Table, name: '员工管理' },
{ path: '/department', component: Table, name: '部门管理' },
]
},
{
path: '*',
hidden: true,
redirect: { path: '/404' }
}
];
export default routes;
routes.js
import Login from './views/Login.vue'
import NotFound from './views/404.vue'
import Home from './views/Home.vue'
import echarts from './views/charts/echarts.vue'
import Employee from './views/Employee.vue'
import Department from './views/Department.vue'
let routes = [
{
path: '/login',
component: Login,
name: '',
hidden: true
},
{
path: '/404',
component: NotFound,
name: '',
hidden: true
},
//{ path: '/main', component: Main },
{
path: '/',
component: Home,
name: '',
iconCls: 'fa fa-address-card',
leaf: true,//只有一个节点
children: [
{ path: '/index', component: echarts, name: '首页' }
]
},
{
path: '/',
component: Home,
name: '系统管理',
iconCls: 'el-icon-message',//图标样式class
children: [
{ path: '/employee', component: Employee, name: '员工管理' },
{ path: '/department', component: Department, name: '部门管理' },
]
},
{
path: '*',
hidden: true,
redirect: { path: '/404' }
}
];
export default routes;
Spring中七种Propagation类的事务属性详解:
REQUIRED:支持当前事务,如果当前没有事务,就新建一个事务。这是最常见的选择。 required(默认值)
SUPPORTS:支持当前事务,如果当前没有事务,就以非事务方式执行。 supports
MANDATORY:支持当前事务,如果当前没有事务,就抛出异常。 mandatory
REQUIRES_NEW:新建事务,如果当前存在事务,把当前事务挂起。 requires_new
NOT_SUPPORTED:以非事务方式执行操作,如果当前存在事务,就把当前事务挂起。 not_supported
NEVER:以非事务方式执行,如果当前存在事务,则抛出异常。 never
NESTED:支持当前事务,如果当前事务存在,则执行一个嵌套事务,如果当前没有事务,就新建一个事务。 nested
用到了拿来记一下(注:这个配置会影响数据存储,根据情况选择)