Hello SpringMVC(原理版)

web.xml

    
        springmvc
        org.springframework.web.servlet.DispatcherServlet
        
        
        
        
            contextConfigLocation
            classpath:springmvc-servlet.xml
        

        1
    

    
        springmvc
        /
    

springmvc-servlet.xml

HelloController.java

package com.bing.controller;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class HelloController implements Controller {
    @Override
    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {

        ModelAndView mv = new ModelAndView();

        //业务代码
        //假设得到一个返回值
        String result="HelloSpringMVC";
        mv.addObject("msg",result);
        //视图跳转,跳到test.jsp里面
        mv.setViewName("test");
        return mv;

    }
}

test.jsp

<%--
  Created by IntelliJ IDEA.
  User: chaobing
  Date: 2022/6/5
  Time: 1:41 下午
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>


    


${msg}