SpringMVC

SpringMVC简介：SpringMVC也叫Spring Web mvc,属于表现层的框架。Spring MVC是Spring框架的一部分，是在Spring3.0后发布的

一、Spring结构图

第一步：引入架包

 

 

第二步：配置web.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns="http://java.sun.com/xml/ns/javaee" 
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
  <display-name></display-name>
  
 
  <!-- 配置中央调度器 -->
  <servlet>
  <servlet-name>springmvc</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  
    <!-- 制定applicationContext.xml的路径 -->
  <init-param>
  <param-name>contextConfigLocation</param-name>
  <param-value>classpath:applicationContext.xml</param-value>
  </init-param>
  <!-- Tomcat启动时servlet对象已经到内存 -->
  <load-on-startup>1</load-on-startup>
  </servlet>
  
  
  <servlet-mapping>
  <servlet-name>springmvc</servlet-name>
  <url-pattern>*.do</url-pattern>
  
  
  </servlet-mapping>
  
  
   <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  </web-app>

第三步：控制器类

package controller;

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

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

public class MyController implements Controller{

    @Override
    public ModelAndView handleRequest(HttpServletRequest request,
            HttpServletResponse response) throws Exception {
        ModelAndView mv=new ModelAndView();
        mv.addObject("msg","hehe");
        mv.setViewName("index");
        return mv;
    }

}

第四步：配置applicationContext.xml文件

使用Tomcat默认Servlet解决