1-Hello SpringMVC

1.创建项目

2.配置Tomcat

 

3.说明:

         项目创建完成后,会生成一些必要文件

修改后:

添加

<bean id="simpleUrlHandlerMapping"
      class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
    <property name="mappings">
        <props>
            <!-- /hello 路径的请求交给 id 为 helloController 的控制器处理-->
            <prop key="/hello">helloController</prop>
        </props>
    </property>
</bean>
<bean id="helloController" class="com.batac.controller.HelloController"></bean>

4.创建controller

 

package com.batac.controller;


import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

//@Controller
public class HelloController implements Controller {

//    @RequestMapping("/hello")
    public ModelAndView handleRequest(javax.servlet.http.HttpServletRequest httpServletRequest, javax.servlet.http.HttpServletResponse httpServletResponse) throws Exception {
        ModelAndView mav = new ModelAndView("index.jsp");
        mav.addObject("message", "Hello Spring MVC");
        return mav;
    }
}

5.修改jsp文件

 

<%@ page language="java" contentType="text/html; charset=UTF-8"
         pageEncoding="UTF-8" isELIgnored="false"%>

<h1>${message}</h1>

6.运行项目

发现缺少servlet-api.jar的包,去tomcat下找到加入项目中即可,并且将项目生成的lib移动到WEB-INF目录下,重新加入依赖;

7.重新运行项目:

http://localhost:8080/hello

页面展示: