springmvc.xml和applicationContext.xml配置的特点

Posted 2020-10-25 Enjoy Life

1:springmvc.xml配置要点

一般它主要配置Controller的组件扫描器和视图解析器

下为:springmvc.xml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:p="http://www.springframework.org/schema/p" 
    xmlns:context="http://www.springframework.org/schema/context" 
    xmlns:mvc="http://www.springframework.org/schema/mvc" 
    xmlns:task="http://www.springframework.org/schema/task"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-4.2.xsd 
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-4.2.xsd 
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd 
        http://www.springframework.org/schema/task 
        http://www.springframework.org/schema/task/spring-task-4.2.xsd">    
        
        <!-- 使用注解开发，不用配置controller，需要配置一个组件扫描器 -->  
        <context:component-scan base-package="com.edu.test.controller"/>
        <!-- 视图解析器 -->                
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <!-- 配置从项目根目录到指定目录一端路径 ,建议指定浅一点的目录-->
            <property name="prefix" value="/WEB-INF/jsp/"></property>
            <!-- 文件的后缀名 -->
            <property name="suffix" value=".jsp"></property>
        </bean>
</beans>

 

2:applicationContext.xml配置要点(在web.xml文件需要加<listener>)

下为:applicationContext.xml文件

<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-4.2.xsd
        http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.2.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop-4.2.xsd
       http://www.springframework.org/schema/tx
       http://www.springframework.org/schema/tx/spring-tx-4.2.xsd">
     <!-- 配置组件扫描器，使用注解方式开发,不用配置dao和service -->
      <!-- 在springmvc.xml文件中也可以配置这个属性 -->  
     <context:component-scan base-package="com.edu.test"/>
      
    <!-- 数据源 -->
    <bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://localhost:3306/test" />
        <property name="username" value="root" />
        <property name="password" value="" />
    </bean>
    
    <!-- 配置session工厂 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
    </bean>
    
    <!-- 事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>
    
    <!-- 配置AOP通知 -->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
         <!-- 配置事务属性 -->
         <tx:attributes>
             <!-- 添加事务管理的方法 -->
             <tx:method name="save*" propagation="REQUIRED"/>
             <tx:method name="delete*" propagation="REQUIRED"/>
             <tx:method name="update*" propagation="REQUIRED"/>
             <tx:method name="select*" read-only="true"/>
         </tx:attributes>
     </tx:advice>
     
     <!-- 配置AOP，为添加事务管理的操作配置AOP -->
    <aop:config>
        <!-- 引入的Spring定义的事务通知，需要使用aop:advisor -->
        <!-- 下面难 -->
        <aop:advisor advice-ref="txAdvice"
            pointcut="execution(* com.edu.test.service.*.*(..))"
        />
    </aop:config>
</beans>

3：在web.xml文件中，将springmvc.xml和applicationContext.xml一起引入

下为:web.xm文件

<?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_3_0.xsd"
    id="WebApp_ID" version="3.0">
    <!-- 配置监听器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:applicationContext.xml</param-value>
    </context-param>
    
    <!-- 中央控制器 -->
    <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>
    </servlet>
    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
    
    
    <!-- 配置Spring提供的字符编码过滤器 -->
    <filter>
        <filter-name>SpringCharacterEncodingFilter</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>SpringCharacterEncodingFilter</filter-name>
        <url-pattern>*.do</url-pattern>
    </filter-mapping>
</web-app>