SSM整合步骤

一、Mybatis整合Spring

1、整合后的maven坐标

2、核心配置文件

3、pojo、mapper、service配置

4、单测

二、整合SpringMVC

1、引入springMVC的坐标并配置tomcat

2、核心配置文件

3、controller配置

4、启动项目并测试

SSM = SpringMVC + Spring + Mybatis

整合顺序：先整合Spring+Mybatis，再整合SpringMVC

新建项目：

一、Mybatis整合Spring

整合思路：

数据库连接池以及事务管理都交给Spring容器来完成
SqlSessionFactory对象应该放到Spring容器中作为单例对象管理
Mapper动态代理对象交给Spring管理

1、整合后的maven坐标

Junit测试jar（4.12版本）
Mybatis的jar（3.4.5）
Spring相关jar（spring-context、spring-test、spring-jdbc、spring-tx、spring-aop、
aspectjweaver）
Mybatis/Spring整合包jar（mybatis-spring-xx.jar）
Mysql数据库驱动jar
Druid数据库连接池的jar

<!--junit-->
<dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version><scope>test</scope>
</dependency>
<!--mybatis-->
<dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.4.5</version>
</dependency>
<!--spring相关-->
<dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>5.1.12.RELEASE</version>
</dependency>
<dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>5.1.12.RELEASE</version>
</dependency>
<dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>5.1.12.RELEASE</version>
</dependency>
<dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId><version>5.1.12.RELEASE</version>
</dependency>
<dependency><groupId>org.springframework</groupId><artifactId>spring-aop</artifactId><version>5.1.12.RELEASE</version>
</dependency>
<dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.8.9</version>
</dependency>
<!--mybatis与spring的整合包-->
<dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>2.0.3</version>
</dependency>
<!--数据库驱动jar-->
<dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.46</version>
</dependency>
<!--druid连接池-->
<dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.1.21</version>
</dependency>

2、核心配置文件

jdbc.properties

jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/manage
jdbc.username=root
jdbc.password=123456

applicationContext-dao.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:context="http://www.springframework.org/schema/context"xmlns:tx="http://www.springframework.org/schema/tx"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/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
"><!--包扫描--><context:component-scan base-package="com.test.mapper"/><!--数据库连接池以及事务管理都交给Spring容器来完成--><!--引⼊外部资源⽂件--><context:property-placeholderlocation="classpath:jdbc.properties"/><!--第三⽅jar中的bean定义在xml中--><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><!--SqlSessionFactory对象应该放到Spring容器中作为单例对象管理原来mybaits中sqlSessionFactory的构建是需要素材的：SqlMapConfig.xml中的内容--><bean id="sqlSessionFactory"class="org.mybatis.spring.SqlSessionFactoryBean"><!--别名映射扫描--><property name="typeAliasesPackage" value="com.test.pojo"/><!--数据源dataSource--><property name="dataSource" ref="dataSource"/></bean><!--Mapper动态代理对象交给Spring管理，我们从Spring容器中直接获得Mapper的代理对象--><!--扫描mapper接⼝，⽣成代理对象，⽣成的代理对象会存储在ioc容器中--><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><!--mapper接⼝包路径配置--><property name="basePackage" value="com.test.mapper"/><property name="sqlSessionFactoryBeanName"value="sqlSessionFactory"/></bean>
</beans>

applicationContext-service.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:lgContext="http://www.springframework.org/schema/context"xmlns:tx="http://www.springframework.org/schema/tx"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/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
"><!--包扫描--><lgContext:component-scan base-package="com.test.service"/><!--事务管理--><bean id="transactionManager"class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource"/></bean><!--事务管理注解驱动--><tx:annotation-driven transaction-manager="transactionManager"/>
</beans>

3、pojo、mapper、service配置

src/main/java/com/test/pojo/User.java

public class User {private int id;private String username;private String password;
}

src/main/java/com/test/mapper/UserMapper.java

public interface UserMapper {public List<User> findList();
}

src/main/resources/com/test/mapper/UserMapper.xml

<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN""http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.test.mapper.UserMapper"><select id="findList" resultType="com.test.pojo.User">select * from user</select>
</mapper>

src/main/java/com/test/service/UserService.java

public interface UserService {public List<User> findList();
}

src/main/java/com/test/service/UserServiceImpl.java

@Service("userService")
@Transactional
public class UserServiceImpl implements UserService{@Autowiredprivate UserMapper userMapper;@Overridepublic List<User> findList() {return userMapper.findList();}
}

4、单测

src/test/java/MybatisSpringTest.java

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = {"classpath*:application*.xml"})
public class MybatisSpringTest {@Autowiredprivate UserService userService;@Testpublic void testMybatisSpring() throws Exception {List<User> list = userService.findList();System.out.println(list);}
}

二、整合SpringMVC

1、引入springMVC的坐标并配置tomcat

<!--SpringMVC-->
<dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>5.1.12.RELEASE</version>
</dependency>
<!--jsp-api&servlet-api-->
<dependency><groupId>javax.servlet</groupId><artifactId>jsp-api</artifactId><version>2.0</version><scope>provided</scope>
</dependency>
<dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><version>3.1.0</version><scope>provided</scope>
</dependency>
<!--⻚⾯使⽤jstl表达式-->
<dependency><groupId>jstl</groupId><artifactId>jstl</artifactId><version>1.2</version>
</dependency>
<dependency><groupId>taglibs</groupId><artifactId>standard</artifactId><version>1.1.2</version>
</dependency>
<!--json数据交互所需jar，start-->
<dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>2.9.0</version>
</dependency>
<dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.9.0</version>
</dependency>
<dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-annotations</artifactId><version>2.9.0</version>
</dependency>
<!--json数据交互所需jar，end-->

<build><plugins><!--tomcat插件--><plugin><groupId>org.apache.tomcat.maven</groupId><artifactId>tomcat7-maven-plugin</artifactId><version>2.2</version><configuration><port>8080</port><path>/</path></configuration></plugin></plugins>
</build>

2、核心配置文件

src/main/resources/springmvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:context="http://www.springframework.org/schema/context"xmlns:mvc="http://www.springframework.org/schema/mvc"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/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
"><!--扫描controller--><context:component-scan base-package="com.test.controller"/><mvc:annotation-driven/>
</beans>

src/main/webapp/WEB-INF/web.xml

<!DOCTYPE web-app PUBLIC"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN""http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app><display-name>Archetype Created Web Application</display-name><context-param><param-name>contextConfigLocation</param-name><param-value>classpath*:applicationContext*.xml</param-value></context-param><!--spring框架启动--><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!--springmvc启动--><servlet><servlet-name>springmvc</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><param-value>classpath*:springmvc.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>springmvc</servlet-name><url-pattern>/</url-pattern></servlet-mapping>
</web-app>

3、controller配置

src/main/java/com/test/controller/UserContoller.java

@Controller
@RequestMapping("/user")
public class UserContoller {@Autowiredprivate UserService userService;@RequestMapping("/queryAll")@ResponseBodypublic List<User> queryAll() throws Exception {return userService.findList();}
}