ssm框架整合详解

1. 第一步导入ssm所需要的jar包
   2. mybatis包
   3. spring和mybatis整合包 mybatis-spring-1.2.2.jar
   4. springmvc包
2. ssm(springmvc+spring+mybatis)整合大致分析
   
   1. dao层：
      
      1. entity(pojo,domain)和mybatis映射文件
      2. sqlMapConfig.xml（mybatis的核心配置文件）
      3. Applicationcontext-dao.xml（spring在dao层的配置）
   2. service层：
      
      1. @service的注解扫描 Applicationcontext-service.xml
      2. 事务 Applicationcontext-trans.xml
   3. controller层
      
      1. 注解开发包扫描
      2. 注解驱动
      3. 视图解析器
   4. web.xml
      
      1. spring监听
      2. springmvc的前端控制器
3. ssm执行流程图（自己画图客官不要嫌弃）
   
4. 给出代码实例（各位客官可以剪切代码即可完成配置，注意修改关键信息）
   web.xml

<?xml version="1.0" encoding="UTF-8"?><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_2_5.xsd" id="WebApp_ID" version="2.5">  <display-name>helloSsm</display-name>  <welcome-file-list>    <welcome-file>index.html</welcome-file>    <welcome-file>index.htm</welcome-file>    <welcome-file>index.jsp</welcome-file>    <welcome-file>default.html</welcome-file>    <welcome-file>default.htm</welcome-file>    <welcome-file>default.jsp</welcome-file>  </welcome-file-list>  <!-- 加载springj监听 -->    <context-param>        <param-name>contextConfigLocation</param-name>        <param-value>classpath:ApplicationContext-*.xml</param-value>    </context-param>    <listener>        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>  <!-- springmvc前端控制器 -->  <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>    <!-- 在tomcat启动的时候就加载这个servlet -->    <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>    <servlet-name>springMvc</servlet-name>    <url-pattern>*.action</url-pattern>  </servlet-mapping>  <!-- 配置Post请求乱码 -->  <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>

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:p="http://www.springframework.org/schema/p"    xmlns:aop="http://www.springframework.org/schema/aop" 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-4.0.xsd    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">    <!-- 加载配置文件 -->    <context:property-placeholder location="classpath:db.properties" />    <!-- 数据库连接池 -->    <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="10" />        <property name="maxIdle" value="5" />    </bean>    <!-- mapper配置 -->    <!-- 让spring管理sqlsessionfactory 使用mybatis和spring整合包中的 -->    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <!-- 数据库连接池 -->        <property name="dataSource" ref="dataSource" />        <!-- 加载mybatis的全局配置文件 -->        <property name="configLocation" value="classpath:SqlMapConfig.xml" />    </bean>    <!-- 配置Mapper扫描器 -->    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <property name="basePackage" value="cn.redrat.dao"/>    </bean></beans>

Applicationcontext.service.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:p="http://www.springframework.org/schema/p"    xmlns:aop="http://www.springframework.org/schema/aop" 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-4.0.xsd    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">    <!-- @Service扫描 -->    <context:component-scan base-package="cn.itheima.service"></context:component-scan></beans>

Applicationcontext-trans.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:p="http://www.springframework.org/schema/p"    xmlns:aop="http://www.springframework.org/schema/aop" 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-4.0.xsd    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.0.xsd">    <!-- 事务管理器 -->    <bean id="transactionManager"        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <!-- 数据源 -->        <property name="dataSource" ref="dataSource" />    </bean>    <!-- 通知 -->    <tx:advice id="txAdvice" transaction-manager="transactionManager">        <tx:attributes>            <!-- 传播行为 -->            <tx:method name="save*" propagation="REQUIRED" />            <tx:method name="insert*" propagation="REQUIRED" />            <tx:method name="delete*" propagation="REQUIRED" />            <tx:method name="update*" propagation="REQUIRED" />            <tx:method name="find*" propagation="SUPPORTS" read-only="true" />            <tx:method name="get*" propagation="SUPPORTS" read-only="true" />        </tx:attributes>    </tx:advice>    <!-- 切面 -->    <aop:config>        <aop:advisor advice-ref="txAdvice"            pointcut="execution(* cn.redrat.service.*.*(..))" />    </aop:config></beans>

sqlMapConfig.xml

<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE configurationPUBLIC "-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd"><configuration></configuration>

SpringMvc.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:p="http://www.springframework.org/schema/p"    xmlns:context="http://www.springframework.org/schema/context"    xmlns:dubbo="http://code.alibabatech.com/schema/dubbo" xmlns:mvc="http://www.springframework.org/schema/mvc"    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd        http://code.alibabatech.com/schema/dubbo http://code.alibabatech.com/schema/dubbo/dubbo.xsd        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">    <!-- @Controller注解扫描 -->    <context:component-scan base-package="cn.redrat.controller"></context:component-scan>    <!-- 注解驱动:            替我们显示的配置了最新版的注解的处理器映射器和处理器适配器 -->    <mvc:annotation-driven conversion-service="conversionService"></mvc:annotation-driven>    <!-- 配置视图解析器     作用:在controller中指定页面路径的时候就不用写页面的完整路径名称了,可以直接写页面去掉扩展名的名称    -->    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <!-- 真正的页面路径 =  前缀 + 去掉后缀名的页面名称 + 后缀 -->        <!-- 前缀 -->        <property name="prefix" value="/WEB-INF/jsp/"></property>        <!-- 后缀 -->        <property name="suffix" value=".jsp"></property>    </bean></beans>

当然ssm整合的方式有很多，各种风格，还望各位客官查阅相关资料，当然也希望本文能给予你思路