SSM的整合

一、环境的搭建

       1.导入依赖

       2.创建实体类、dao、service、controller编写

二、Spring框架代码的编写

       1.创建applicationConfig.xml的配置文件

<?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"
       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/aop
    http://www.springframework.org/schema/aop/spring-aop.xsd
    http://www.springframework.org/schema/tx
    http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!--开启注解扫描，只处理service和dao,controller不需要spring框架处理-->
    <context:component-scan base-package="cn.li">
        <!--配置不需要扫描的注解-->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

</beans>

  三、SpringMVC框架的搭建以及整合

        1.在web.xml中配置前端控制器

<web-app>
  <display-name>Archetype Created Web Application</display-name>

  <!--配置前端控制器-->
  <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!--加载springmvc.xml配置文件-->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <!--启动服务器，创建servlet-->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
  <!--解决中文乱码的过滤器-->
  <filter>
    <filter-name>characterEncodingFilter</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>characterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
</web-app>

           2.创建springmvc.xml文件进行配置

          

<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" xmlns:mv="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/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">
    <!--开启注解扫描,只开启Controller注解-->
    <context:component-scan base-package="cn.li">
        <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
    <!--配置视图解析器对象-->
    <bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
         <property name="prefix" value="/WEB-INF/pages/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
    <!--设置静态资源不过滤-->
    <mv:resources mapping="/js/**" location="/js/"/>
    <!--开启SpringMVC注解的支持-->
    <mvc:annotation-driven/>

      3.SpringMVC和spring进行整合

            在项目启动的时候，就去加载applicationContext.xml的配置文件，在web.xml中配置 ContextLoaderListener监听器（该监听器默认只能加载WEB-INF目录下的applicationContext.xml的配置文 件）。

<!--配置Spring的监听器 默认只加载WEN-INF下的applicationContext.xml配置文件-->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!--设置配置文件的位置-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>

       4.在controller中可以注入service了，测试整合完成

四、spring整合Mybatis

         1.在applicationConfig.xml中配置

             

<!--spring整合MyBatis框架-->
<context:property-placeholder location="classpath:db.properties"/>
<!--配置连接池-->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>
<!--配置SqlSessionFactory--> 
<bean id="sessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean"> 

    <property name="dataSource" ref="dataSource"/>
 </bean> 
<!--配置AccountDao接口所在的对象--> 
<bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">

 <property name="basePackage" value="cn.li.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>


<!--&lt;!&ndash;注解方式，要在相应的方法或类上加@Transactional&ndash;&gt;-->
<!--    <tx:annotation-driven transaction-manager="transactionManager"/>-->


    <!--配置事务通知-->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="find*" read-only="true"/>
            <tx:method name="*" isolation="DEFAULT" read-only="false"/>
        </tx:attributes>
    </tx:advice>
    <!--配置AOP增强-->
    <aop:config>
        <aop:pointcut id="pt1" expression="execution(* cn.li.service.impl.*.*(..))"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="pt1"/>
    </aop:config>

注意：要在controller中的类上加@Controller注解

           要在service中的类上加@service注解