2018-07-16 springmvc和mybatis的整合

导入四个配置文件和jar包
为什么要在web.xml中配置监听器？
因为tomcat在启动时，监听器就可以读取applicationContext.xml文件。

<!--  注解事务-->
   事务的包在哪 要记住
    <bean id="transactionManager"  class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
       <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 开启事务 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>

展示三大框架整合后的配置文件
1.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>springmvc_mybatis</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>
  
  <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>
  
  <!-- 配置前端控制器DispatcherServlet -->
  <servlet>
    <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 默认找WEB-INF/[servlet-name]-serlvet.xml 比如：springmvc-serlvet.xml   -->
    <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> *.action</url-pattern>
  </servlet-mapping>
</web-app>

2.applicationContext.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">


    <context:property-placeholder location="classpath:jdbc.properties"/>
    
    <!-- 数据库连接池 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <property name="driverClassName" value="${jdbc.driverClassName}" />
        <property name="url" value="${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>
    
    <!-- Mybatis的工厂 -->
    <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <!-- 核心配置文件的位置 -->
        <property name="configLocation" value="classpath:sqlMapConfig.xml"/>
    </bean>
    
    
    
    <!-- Mapper动态代理开发   扫描 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 基本包 -->
        <property name="basePackage" value="com.ryan.springmvc.dao"/>
    </bean>
    
    <!--  注解事务-->
    <bean id="transactionManager"  class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
       <property name="dataSource" ref="dataSource"></property>
    </bean>
    <!-- 开启事务 -->
    <tx:annotation-driven transaction-manager="transactionManager"/>
    
</beans>

3.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: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://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">

        <!--处理器映射器  -->
       <!--  <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean> -->
        <!-- 处理器适配器 -->
        <!-- <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean>
        -->
      
       <mvc:annotation-driven></mvc:annotation-driven>
       
        
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
          <property name="prefix" value="/WEB-INF/jsp/"></property>
          <property name="suffix" value=".jsp"></property>
        </bean>
        
        <!-- 扫描@Controler  @Service   -->
        <context:component-scan base-package="com.ryan.springMVC"></context:component-scan>
    
        
   </beans>

4.sqlMapConfig.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    
    <typeAliases>
       <!-- <typeAlias type="com.ryan.mybatis.pojo.User"  alias="User"/> -->
       <package name="com.ryan.springmvc.pojo"/>
    </typeAliases>
    
    
    
</configuration>