Spring MVC @RequestAttribute注解
@RequestAttribute
获取HTTP的请求（request）对象属性值，用来传递给控制器的参数。
创建Hello控制器
package com.controller; import org.Springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestAttribute; import org.springframework.web.bind.annotation.RequestMapping; @Controller public class Hello { @RequestMapping("/show") public String show(@RequestAttribute("name")String userName) { System.out.println("userName="+userName); return "success"; } }创建index.jsp
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>index</title> </head> <body> <% request.setAttribute("name", "baixue"); request.getRequestDispatcher("/show").forward(request,response); %> </body> </html>启动 Tomcat访问 index.jsp
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