springmvc 1

springmvc的model是实体类，可以理解为把数据库里的一张表变成了一个对象

/*** */
package com.test.model;/*** @ClassName:     User.java* @Description:   TODO(用一句话描述该文件做什么) * * @author         JerryZhou* @Date           2014-7-15 上午10:24:04 */
public class User {public int id;public String name;public String sex;/*** @return the id*/public int getId() {return id;}/*** @param id the id to set*/public void setId(int id) {this.id = id;}/*** @return the name*/public String getName() {return name;}/*** @param name the name to set*/public void setName(String name) {this.name = name;}/*** @return the sex*/public String getSex() {return sex;}/*** @param sex the sex to set*/public void setSex(String sex) {this.sex = sex;}}

controller控制器，把model里的对象拿来，进行一些动作

/*** */
package com.test.controller;import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.multiaction.MultiActionController;import com.test.model.User;/*** @ClassName:     HelloWorldController.java* @Description:   TODO(用一句话描述该文件做什么) * * @author         JerryZhou* @Date           2014-7-14 下午5:54:46 */
public class HelloWorldController extends MultiActionController{// http://localhost:8080/SpringMVCTest/hellowlrldpublic ModelAndView handleRequest(HttpServletRequest arg0,HttpServletResponse arg1) throws Exception {     User user = new User();user.setId(1);user.setName("Test");user.setSex("男");List<User> usrst = new ArrayList<User>();User user1 = new User();user1.setId(2);user1.setName("张三");user1.setSex("男");usrst.add(user1);User user2 = new User();user2.setId(3);user2.setName("李四");user2.setSex("女");usrst.add(user2);User user3 = new User();user3.setId(4);user3.setName("王五");user3.setSex("男");usrst.add(user3);Map<String, Object> model =new HashMap<String, Object>();model.put("usrst", usrst);ModelAndView mv = new ModelAndView();mv.addObject(user);mv.addAllObjects(model);mv.setViewName("welcome");return mv;}}

然后就是视图层

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%><%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><base href="<%=basePath%>"><title>My JSP 'index.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">--></head><body>Welcome ${user.name} <br><br>Welcome ${user.sex} <br><br>User List<br/><br><table border=""><tr><td>序号</td><td>编号</td><td>名称</td><td>性别</td></tr><c:forEach items="${usrst }" var="usr" varStatus="status"><tr><td>${status.index + 1 }</td><td>${usr.id }</td><td>${usr.name }</td><td>${usr.sex }</td></tr></c:forEach></table></body>
</html>

从请求地址（控制器->model;控制器->view）到输出，这个规则是路由定制的，配置文件是这样的

<?xml version="1.0" encoding="UTF-8"?>  <beans xmlns="http://www.springframework.org/schema/beans"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xmlns:p="http://www.springframework.org/schema/p"  xmlns:mvc="http://www.springframework.org/schema/mvc"  xmlns:context="http://www.springframework.org/schema/context"  xmlns:util="http://www.springframework.org/schema/util"  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd  http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd  http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">  <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/"></property><property name="suffix" value=".jsp"></property></bean>

　　　　  <bean name="/hellowlrld" class="com.test.controller.HelloWorldController"></bean>    （重要）




</beans>