1、首先導入幾個jar包
commons-beanutils.jar
commons-collections.jar
commons-logging.jar
commons-lang.jar
ezmorph-1.0.6.jar
json-lib-2.2.3-jdk.jar
2、伺服器端處理程式
1/**//*
2 * Generated by MyEclipse Struts
3 * Template path: templates/java/JavaClass.vtl
4 */
5package com.sailor.test.action;
6
7import java.io.IOException;
8import java.io.PrintWriter;
9import java.util.ArrayList;
10import java.util.List;
11
12import javax.servlet.http.HttpServletRequest;
13import javax.servlet.http.HttpServletResponse;
14
15
16import net.sf.json.JSONArray;
17
18import org.apache.struts.action.Action;
19import org.apache.struts.action.ActionForm;
20import org.apache.struts.action.ActionForward;
21import org.apache.struts.action.ActionMapping;
22
23import com.sailor.test.action.form.LoginForm;
24import com.sailor.test.model.LoginDTO;
25
26/** *//**
27 * MyEclipse Struts
28 * Creation date: 12-28-2008
29 *
30 * XDoclet definition:
31 * @struts.action path="/login" name="loginForm" input="/login.jsp" scope="request" validate="true"
32 */
33public class LoginAction extends Action {
34 /**//*
35 * Generated Methods
36 */
37
38 /** *//**
39 * Method execute
40 * @param mapping
41 * @param form
42 * @param request
43 * @param response
44 * @return ActionForward
45 */
46 public ActionForward execute(ActionMapping mapping, ActionForm form,
47 HttpServletRequest request, HttpServletResponse response) {
48
49
50 System.out.println("begin");
51
52 LoginForm loginForm = (LoginForm) form;
53
54 List<LoginDTO> list = new ArrayList<LoginDTO>();
55
56 LoginDTO l1 = new LoginDTO();
57 l1.setUsername("haiou");
58 l1.setPassword("sa");
59
60 LoginDTO l2 = new LoginDTO();
61 l2.setUsername("sailor");
62 l2.setPassword("123456");
63
64 LoginDTO l3 = new LoginDTO();
65 l3.setUsername(loginForm.getUsername());
66 l3.setPassword(loginForm.getPassword());
67
68 list.add(l1);
69 list.add(l2);
70 list.add(l3);
71
72 //适用于List
73 //Map<String, Object> map = new HashMap<String, Object>();
74 //map.put("userlist", list);
75 //JSONObject json = JSONObject.fromObject(map);
76
77 //适用于Map
78 JSONArray json = JSONArray.fromObject(list);
79
80 try {
81 PrintWriter out = response.getWriter();
82 out.print(json);
83
84 } catch (IOException e) {
85 e.printStackTrace();
86 }
87
88 return null;
89 }
90}
2、struts-config，web.xml不需要特殊的配置
3、login.jsp：輸入使用者名和密碼，然後顯示在本頁面
<%@ page language="java" pageEncoding="UTF-8"%>
2<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
3<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
4
5<html>
6 <head>
7 <title>JSP for LoginForm form</title>
8
9 <script src="jquery-1[1].2.1.pack.js" charset="utf-8"></script>
10 <script>
11 $(document).ready(function(){
12
13 $("#userlogin").click(function(){
14 $.ajax({
15 url:'login.do',
16 type: 'post',
17 data:'username='+$("#username").val()+'&password='+$("#password").val(),
18 timeout: 2000,
19 error: function(){
20 alert('錯誤');
21 },
22 success: function(json){
23
24 var users = eval('(' + json + ')');
25
26 $("#result").empty();
27 $("#username").attr("value","");
28 $("#password").attr("value","");
29
30 //傳回的是List
31 $.each(users,function(i, user){
32 $("#result").append("<li>"+ i + " name: " + user.username + "&nbsp; pwd:"+ user.password +"</li>");
33 });
34
35 //傳回的是Map類型
36 // var users = myObject.userlist;
37 // $.each(users,function(i, user){
38 // $("#result").append("<li>"+ i + " name: " + user.username + "&nbsp; pwd:"+ user.password +"</li>");
39 // });
40 }
41 });
42
43 });
44
45 //ajax送出
46 $("#loading").ajaxStart(function(){
47 $(this).html("<img src=\"loading.gif\">&nbsp;正在加載");
48 });
49
50 //ajax成功狀态
51 $("#loading").ajaxSuccess(function(){
52 $(this).html("儲存成功!");
53 });
54
55 //ajax結束狀态
56 $("#loading").ajaxStop(function(){
57 $(this).hide();
58 });
59
60 });
61 </script>
62
63
64 </head>
65 <body>
66 使用者名 : <input type="text" id="username" name="username"/><br/>
67 密碼 : <input type="password" id="password" name="password"/><br/>
68 <font id="userlogin">登陸</font><span id="loading"></span>
69
70 <p id="result"></p>
71 </body>
72</html>
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