史上最详细的SSM框架整合(Spring、SpringMVC、Mybatis)
毫无疑问我们肯定是使用Spring去整合SpringMVC和Mybatis，在整合过程中我们首先要让各自的模块实现，然后再去使用Spring整合；比如我先实现Mybatis框架的配置，然后再通过测试看操作数据库能否成功，如果测试成功了我们再去使用Spring整合Mybatis；当然SpringMVC也一样，先编写SpringMVC所需要的一些配置项，测试web层能够实现之后再去使用Spring整合SpringMVC；
1.导入坐标
<dependencies>
<dependency>
<groupId>junitgroupId>
<artifactId>junitartifactId>
<version>4.11version>
<scope>compilescope>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-contextartifactId>
<version>5.2.9.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aopartifactId>
<version>5.2.9.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webartifactId>
<version>5.2.9.RELEASEversion>
dependency>
<dependency>
<groupId>org.aspectjgroupId>
<artifactId>aspectjweaverartifactId>
<version>1.8.13version>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-jdbcartifactId>
<version>5.0.9.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-txartifactId>
<version>5.0.9.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-testartifactId>
<version>5.0.9.RELEASEversion>
dependency>
<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-webmvcartifactId>
<version>5.2.9.RELEASEversion>
dependency>
<dependency>
<groupId>javax.servletgroupId>
<artifactId>servlet-apiartifactId>
<version>2.5version>
dependency>
<dependency>
<groupId>javax.servlet.jspgroupId>
<artifactId>jsp-apiartifactId>
<version>2.2version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatisartifactId>
<version>3.4.6version>
dependency>
<dependency>
<groupId>org.mybatisgroupId>
<artifactId>mybatis-springartifactId>
<version>1.3.1version>
dependency>
<dependency>
<groupId>mysqlgroupId>
<artifactId>mysql-connector-javaartifactId>
<version>8.0.19version>
dependency>
<dependency>
<groupId>com.alibabagroupId>
<artifactId>druidartifactId>
<version>1.1.2version>
dependency>
<dependency>
<groupId>log4jgroupId>
<artifactId>log4jartifactId>
<version>1.2.17version>
dependency>
<dependency>
<groupId>jstlgroupId>
<artifactId>jstlartifactId>
<version>1.2version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-log4j12artifactId>
<version>1.7.12version>
dependency>
<dependency>
<groupId>org.slf4jgroupId>
<artifactId>slf4j-apiartifactId>
<version>1.7.12version>
dependency>
dependencies>
2.创建数据表
3.编写Account实体类
public class Account implements Serializable {
private int id;
private String name;
private double money;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public double getMoney() {
return money;
}
public void setMoney(double money) {
this.money = money;
}
@Override
public String toString() {
return "Account{" +
"id=" + id +
", name='" + name + '\'' +
", money=" + money +
'}';
}
}
3.配置jdbc.properties资源文件
jdbc.driver=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/ssm?serverTimezone=UTC
jdbc.username=root
jdbc.password=hao20001010
4.Spring整合Myabits(编写Spring核心配置文件applicationContext.xml)
将Myabtis的相关操作交给spring管理（不用再配置Mybaits的核心文件SqlMapConfig.xml)
<?xml version="1.0" encoding="UTF-8"?>
<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:aop="http://www.springframework.org/schema/aop"
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/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
<!-- 开启注解扫描,只希望处理service和dao，controller不需要我们处理-->
<context:component-scan base-package="com.hao">
<!-- 配置哪些注解不扫描-->
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
<!-- spring整合mybatis框架-->
<!-- 加载jdbc.properties文件-->
<context:property-placeholder location="classpath:jdbc.properties"/>
<!-- 配置连接池-->
<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
<property name="driverClassName" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
</bean>
<!-- 配置工厂对象SqlSessionFactory-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 接口所在的包-->
<bean id="scannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.hao.dao"/>
</bean>
<!-- 配置spring框架的声明式事务管理-->
<!-- 配置事务管理器-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 配置事务通知-->
<tx:advice id="tx" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="find*" read-only="true"/>
<tx:method name="*" isolation="DEFAULT"/>
</tx:attributes>
</tx:advice>
<!-- 配置AOP增强-->
<aop:config>
<aop:advisor advice-ref="tx" pointcut="execution(* com.hao.service.impl.*ServiceImpl.*(..))"/>
</aop:config>
</beans>
5.配置SpringMVC的核心文件（spring-mvc.xml)
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="com.hao">
<context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
context:component-scan>
<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"/>
<property name="suffix" value=".jsp"/>
bean>
<mvc:resources mapping="/css/**" location="/css/"/>
<mvc:resources mapping="/css/**" location="/images"/>
<mvc:resources mapping="/js/**" location="/js/"/>
<mvc:annotation-driven/>
beans>
6.有关web.xml的配置（SpringMVC的前端控制器，加载spring核心配置文件，编码过滤等）
<web-app>
<display-name>Archetype Created Web Applicationdisplay-name>
<servlet>
<servlet-name>dispatcherServletservlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
<init-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:spring-mvc.xmlparam-value>
init-param>
<load-on-startup>1load-on-startup>
servlet>
<servlet-mapping>
<servlet-name>dispatcherServletservlet-name>
<url-pattern>/url-pattern>
servlet-mapping>
<filter>
<filter-name>characterEncodingFilterfilter-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>characterEncodingFilterfilter-name>
<url-pattern>/*url-pattern>
filter-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
listener>
<context-param>
<param-name>contextConfigLocationparam-name>
<param-value>classpath:applicationContext.xmlparam-value>
context-param>
web-app>
Spring与SpringMVC是天生无缝集成的
7.编写Dao层
@Repository
public interface AccountDao {
/**
* 查询所有账户信息
* @return list
*/
@Select("select * from account")
public List<Account> findAll();
/**
* 保存账户信息
*/
@Insert("insert into account (name,money) values(#{name},#{money})")
public void saveAccount(Account account);
}
8.编写Service层
public interface AccountService {
/**
* 查询所有账户信息
* @return list
*/
public List<Account> findAll();
/**
* 保存账户信息
*/
public void saveAccount(Account account);
}
@Service
public class AccountServiceImpl implements AccountService {
@Autowired
private AccountDao accountDao;
@Override
public List<Account> findAll() {
System.out.println("业务层，查询所有的账户。。");
List<Account> list = accountDao.findAll();
return list;
}
@Override
public void saveAccount(Account account) {
System.out.println("业务层，保存账户。。");
accountDao.saveAccount(account);
}
}
9.编写Controller层
@Controller
@RequestMapping("/account")
public class AccountController {
@Autowired
private AccountService service;
@RequestMapping("/findAll")
public String findAll(Model model){
System.out.println("表现层，查询所有用户");
List<Account> list = service.findAll();
model.addAttribute("list",list);
return "list";
}
//自动将前端数据封装到Account类里面
@RequestMapping("/save")
public void save(Account account, HttpServletRequest request, HttpServletResponse response) throws IOException {
service.saveAccount(account);
response.sendRedirect(request.getContextPath()+"/account/findAll");
return;
}
}
10.编写前端页面
index.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<body>
<a href="account/findAll">测试</a>
<form action="/account/save" method="post">
姓名：<input type="text" name="name"/><br>
金额：<input type="text" name="money"/><br>
<input type="submit" value="保存">
</form>
</body>
</html>
list.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<h3>查询了所有的用户信息</h3>
<c:forEach items="${list}" var="account">
${account.name}
${account.money}
</c:forEach>
</body>
</html>
11.测试即可