SSM（Spring 、SpringMVC 、Mybatis）框架整合

1.引入依赖

<!--引入spring相关-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>4.3.2.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>4.3.2.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>4.3.2.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-expression</artifactId>
      <version>4.3.2.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
      <version>4.3.2.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>4.3.2.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context-support</artifactId>
      <version>4.3.2.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aspects</artifactId>
      <version>4.3.2.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>4.3.2.RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>4.3.2.RELEASE</version>
    </dependency>

    <!--引入spring-test包测试-->
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>4.3.2.RELEASE</version>
      <scope>test</scope>
    </dependency>

    <!--引入mybatis-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.2.8</version>
    </dependency>

    <!--引入mybatis-spring-->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.2</version>
    </dependency>

    <!--引入mysql-->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.38</version>
    </dependency>

    <!--引入log4j-->
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>1.2.17</version>
    </dependency>

    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>1.7.12</version>
    </dependency>

    <!--引入fastjson-->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>fastjson</artifactId>
      <version>1.2.45</version>
    </dependency>

    <!--引入javaEE规范-->
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>servlet-api</artifactId>
      <version>2.5</version>
    </dependency>

    <!--引入jstl-->
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>

    <!--引入druid-->
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>1.1.10</version>
    </dependency>

    <!--引入lombok依赖-->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.4</version>
      <scope>provided</scope>
    </dependency>

2.Spring整合Mybatis

1） 建表

2） 实体类

3） DAO接口

4） mapper

5） Service接口

6） ServiceImpl           @Service    @Transactional     注入DAO

7） 编写spring.xml

        a. 开启注解扫描

        b. 引入小配置文件

        c. 创建数据源

        d. 创建SqlSessionFactory

        e. 创建DAO

        f. 创建事务管理器

        g. 开启注解式事务生效      <tx:annotation-driven />

  spring.xml的代码如下：

<!--开启注解扫描-->
    <context:component-scan base-package="com.xxx"/>
    <!--读取配置文件-->
    <context:property-placeholder location="classpath:jdbc.properties"/>

    <!--创建数据源-->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="driverClassName" value="${mysql.driverClassName}"/>
        <property name="url" value="${mysql.url}"/>
        <property name="username" value="${mysql.username}"/>
        <property name="password" value="${mysql.password}"/>
    </bean>

    <!--创建sqlSessionFactory-->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!--注册mapper-->
        <property name="mapperLocations" value="classpath:com/xxx/mapper/*.xml"/>
        <!--起别名-->
        <property name="typeAliasesPackage" value="com.xxx.entity"/>
    </bean>

    <!--创建DAO对象-->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <property name="basePackage" value="com.xxx.dao"/>
    </bean>

    <!--创建事务管理器-->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

    <!--开启注解事务生效-->
    <tx:annotation-driven transaction-manager="transactionManager"/>

3.Spring 整合 SpringMVC

a. 配置web.xml

       1） SpringMVC  核心 Servlet  加载springmvc.xml配置文件

       2） 配置工厂监听器  ContextLoaderListener

       3） 配置全局初始化参数       读取spring.xml

  web.xml中代码如下：

<!--配置全局初始化参数-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:spring.xml</param-value>
  </context-param>

  <!--解决中文乱码-->
  <filter>
    <filter-name>charset</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <param-name>encoding</param-name>
      <param-value>UTF-8</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>charset</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

  <!--配置工厂监听器-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  
  <!--springmvc的核心servlet-->
  <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>
  </servlet>
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

b. 编写springmvc.xml

        1） 开启注解扫描

        2） 注册处理器映射器和处理器适配器       <mvc:annotation-driven />

        3） 配置视图解析器

springmvc.xml中代码如下：

<!--开启注解扫描-->
    <context:component-scan base-package="com"/>

    <!--注册处理器映射器和处理器适配器-->
    <mvc:annotation-driven/>

    <!--配置视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

c. 编写控制器Controller  类上 加上 @Controller  @requestMapping     注入Service对象

4.部署项目、测试