springmvc restful风格操作

ssm框架

controller：

package com.sgcc.controller;

import java.util.ArrayList;


import java.util.List;


import org.omg.CORBA.PUBLIC_MEMBER;


import org.springframework.stereotype.Controller;


import org.springframework.ui.ModelMap;


import org.springframework.web.bind.annotation.PathVariable;


import org.springframework.web.bind.annotation.RequestMapping;


import com.sgcc.entity.User;


@Controller


@RequestMapping("/user")//窄化--分模块开发，团队协作-- 注意页面跳转 加/ 或视图解析器


public class UserController {


private List<User> list = new ArrayList<User>();

</span><span style="color: #0000ff">public</span><span style="color: #000000"> UserController() {</br>
    list.add(</span><span style="color: #0000ff">new</span> User(1,"张三","1111"<span style="color: #000000">));</br>
    list.add(</span><span style="color: #0000ff">new</span> User(2,"李四","1111"<span style="color: #000000">));</br>
    list.add(</span><span style="color: #0000ff">new</span> User(3,"王五","3333"<span style="color: #000000">));</br>

}</br>
</span><span style="color: #008000">//</span><span style="color: #008000">查询所有用户</span></br>
@RequestMapping("/list"<span style="color: #000000">)</br>
</span><span style="color: #0000ff">public</span><span style="color: #000000"> String list(ModelMap map){</br>
    map.addAttribute(</span>"list"<span style="color: #000000">, list);</br>
    </span><span style="color: #008000">//</span><span style="color: #008000">System.out.println(list.toString());</span></br>
    <span style="color: #0000ff">return</span> "/list.jsp"<span style="color: #000000">;</br>
}</br>
</span><span style="color: #008000">//</span><span style="color: #008000">添加用户</span></br>
@RequestMapping("/add"<span style="color: #000000">)</br>
</span><span style="color: #0000ff">public</span><span style="color: #000000"> String add(User user){</br>
    user.setId(list.get(list.size()</span>-1).getId()+1<span style="color: #000000">);</br>
    list.add(user);</br>
    </span><span style="color: #008000">//</span><span style="color: #008000">return "/user/list.do"</span></br>
    <span style="color: #0000ff">return</span> "redirect:list.do"<span style="color: #000000">;</br>
}</br>
</span><span style="color: #008000">//</span><span style="color: #008000">删除用户</span></br>
@RequestMapping("/delete"<span style="color: #000000">)</br>
</span><span style="color: #0000ff">public</span> String delte(<span style="color: #0000ff">int</span><span style="color: #000000"> id){</br>
    </span><span style="color: #0000ff">for</span> (<span style="color: #0000ff">int</span> i = 0; i &lt; list.size(); i++<span style="color: #000000">) {</br>
        </span><span style="color: #0000ff">if</span> (list.get(i).getId()==<span style="color: #000000">id) {</br>
            list.remove(i);</br>
            </span><span style="color: #0000ff">break</span><span style="color: #000000">;</br>
        }</br>
    }</br>
    </span><span style="color: #0000ff">return</span> "redirect:list.do"<span style="color: #000000">;</br>
}</br>
</span><span style="color: #008000">//</span><span style="color: #008000">传统url delete？id=123；</br>
</span><span style="color: #008000">//</span><span style="color: #008000">restful风格的开发 delete/123</br>
</span><span style="color: #008000">//</span><span style="color: #008000">url /user/123/delete1</span></br>
@RequestMapping("/{id}/delete1"<span style="color: #000000">)</br>
</span><span style="color: #0000ff">public</span> String delete1(@PathVariable <span style="color: #0000ff">int</span><span style="color: #000000"> id){</br>
    </span><span style="color: #0000ff">for</span> (<span style="color: #0000ff">int</span> i = 0; i &lt; list.size(); i++<span style="color: #000000">) {</br>
        </span><span style="color: #0000ff">if</span> (list.get(i).getId()==<span style="color: #000000">id) {</br>
            list.remove(i);</br>
            </span><span style="color: #0000ff">break</span><span style="color: #000000">;</br>
        }</br>
    }</br>
    </span><span style="color: #0000ff">return</span> "redirect:/user/list.do"<span style="color: #000000">;</br>
}</br>

}

前端：

<%@ 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%>">

&lt;title&gt;My JSP 'index.jsp' starting page&lt;/title&gt;</br>
&lt;meta http-equiv="pragma" content="no-cache"&gt;</br>
&lt;meta http-equiv="cache-control" content="no-cache"&gt;</br>
&lt;meta http-equiv="expires" content="0"&gt;    </br>
&lt;meta http-equiv="keywords" content="keyword1,keyword2,keyword3"&gt;</br>
&lt;meta http-equiv="description" content="This is my page"&gt;</br>
&lt;!--</br>
&lt;link rel="stylesheet" type="text/css" href="styles.css"&gt;</br>
--&gt;</br>

</head>


<body>


<table width="80%" align="center">


<tr>


<td colspan="4" align="right"><a href="add.jsp">添加</a></td>


</tr>


<tr>


<td>编号</td>


<td>姓名</td>


<td>密码</td>


<td>操作</td>


</tr>


<c:forEach items = "${list }" var="bean">


<tr>


<td>${bean.id }</td>


<td>${bean.name }</td>


<td>${bean.pwd }</td>


<td><a href="user/delete.do?id=${bean.id }">删除</a>


<td><a href="user/${bean.id }/delete1.do">删除2</a>


</td>


</tr>


</c:forEach>


</table>


</body>


</html>