springmvc标签<mvc:annotation-driven/>(十二)

原来的springmvc.xml配置

<?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:mvc="http://www.springframework.org/schema/mvc"    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-3.2.xsd         http://www.springframework.org/schema/mvc         http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd         http://www.springframework.org/schema/context         http://www.springframework.org/schema/context/spring-context-3.2.xsd         http://www.springframework.org/schema/aop         http://www.springframework.org/schema/aop/spring-aop-3.2.xsd         http://www.springframework.org/schema/tx         http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">        <!-- 开启扫描 com.study下的包,如果扫描到有@Component @Controller@Service等这些注解的类，则把这些类注册为bean -->        <context:component-scan base-package="com.study"></context:component-scan>        <!-- 配置注解处理器映射器  功能：寻找执行类Controller-->        <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean>        <!-- 配置注解处理器适配器    功能：调用controller方法，执行controller-->        <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter"></bean>        <!-- 配置sprigmvc视图解析器：解析逻辑试图              后台返回逻辑试图：index            视图解析器解析出真正物理视图：前缀+逻辑试图+后缀====/WEB-INF/jsps/index.jsp        -->        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">            <property name="prefix" value="/WEB-INF/jsps/"></property>            <property name="suffix" value=".jsp"></property>        </bean></beans>

使用<mvc:annotation-driven/>标签后简化为

<?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:mvc="http://www.springframework.org/schema/mvc"    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-3.2.xsd         http://www.springframework.org/schema/mvc         http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd         http://www.springframework.org/schema/context         http://www.springframework.org/schema/context/spring-context-3.2.xsd         http://www.springframework.org/schema/aop         http://www.springframework.org/schema/aop/spring-aop-3.2.xsd         http://www.springframework.org/schema/tx         http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">        <!-- 开启扫描 com.study下的包,如果扫描到有@Component @Controller@Service等这些注解的类，则把这些类注册为bean -->        <context:component-scan base-package="com.study"></context:component-scan>        <!-- annotation-driven:默认创建了多个对象：RequestMappingHandlerMapping，RequestMappingHandlerAdapter        也提供对json格式支持-->        <mvc:annotation-driven/>        <!-- 配置sprigmvc视图解析器：解析逻辑试图              后台返回逻辑试图：index            视图解析器解析出真正物理视图：前缀+逻辑试图+后缀====/WEB-INF/jsps/index.jsp        -->        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">            <property name="prefix" value="/WEB-INF/jsps/"></property>            <property name="suffix" value=".jsp"></property>        </bean></beans>

注: annotation-driven:默认创建了多个对象：RequestMappingHandlerMapping，RequestMappingHandlerAdapter
也提供对json格式支持