Spring MVC学习二

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今天学习SpringMVC的注解配置，发现注解的确比XML配置方便简洁多了，现将SpringMvc的具体注解配置说明一下。

1、添加SpringMVC注解功能

添加SpringMVC有两种方式：

a、手工注入开启注解的具体类

<!-- 注解扫描包 --><context:component-scan base-package="com.springmvc.controller.annotation"></context:component-scan><!-- 开启注解 --><bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"></bean><bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"></bean>

b、使用springmvc标签

<mvc:annotation-driven/><!-- 注解扫描包 --><context:component-scan base-package="com.springmvc.controller.annotation"></context:component-scan>

2、使用注解后的Controller类

package com.springmvc.controller.annotation;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.servlet.ModelAndView;@Controller@RequestMapping("/user")public class UserController {@RequestMapping("/add.do")public ModelAndView addUser(){return new ModelAndView("user","method","add");}@RequestMapping("/delete.do")public ModelAndView deleteUser(){return new ModelAndView("user","method","delete");}@RequestMapping("/update.do")public ModelAndView updateUser(){return new ModelAndView("user","method","update");}@RequestMapping("/toUser.do")//只进行跳转public String toUser(HttpServletRequest request, HttpServletResponse response){System.out.println("跳转...");request.setAttribute("method", "跳转");return "user";}}

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