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 DIV+CSS佈局教程網 >> 網頁腳本 >> JavaScript入門知識 >> AJAX入門 >> AJAX詳解 >> ajax技術制作得在線歌詞搜索功能
ajax技術制作得在線歌詞搜索功能
編輯:AJAX詳解     

 1<!DOCTYPE html PUBLIC "-//W3C//DTD XHtml 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xHtml1-transitional.dtd">
 2<Html XMLns="http://www.w3.org/1999/xHtml">
 3<head>
 4<meta http-equiv="Content-Type" content="text/Html; charset=gb2312" />
 5<title>無標題文檔</title>
 6</head>
 7
 8<body>
 9<style type="text/CSS">
10<!--
11body {
12background-color: #FFFFFF;
13 font-size: 85%;
14 font-family: Verdana;
15 margin-top : 10px;
16 margin-left : 10px;
17}
18a:link{color:#3737c8}
19a:active {color: #f00;}
20a:visited {color:#639;}
21-->
22</style>
23<script language="Javascript">
24    var http_request = false;
25    function send_request(url) {//初始化、指定處理函數、發送請求的函數
26        http_request = false;
27        //開始初始化XMLHttpRequest對象
28        if(window.XMLHttpRequest) { //Mozilla 浏覽器
29            http_request = new XMLHttpRequest();
30            if (http_request.overrideMimeType) {//設置MiME類別
31                http_request.overrideMimeType('text/XML');
32            }
33        }
34        else if (window.ActiveXObject) { // IE浏覽器
35            try {
36                http_request = new ActiveXObject("Msxml2.XMLHTTP");
37            } catch (e) {
38                try {
39                    http_request = new ActiveXObject("Microsoft.XMLHTTP");
40                } catch (e) {}
41            }
42        }
43        if (!http_request) { // 異常,創建對象實例失敗
44            window.alert("不能創建XMLHttpRequest對象實例.");
45            return false;
46        }
47        http_request.onreadystatechange = processRequest;
48        // 確定發送請求的方式和URL以及是否同步執行下段代碼
49        http_request.open("GET", url, true);
50        http_request.send(null);
51    }
52    // 處理返回信息的函數
53    function processRequest() {
54        if (http_request.readyState == 4) { // 判斷對象狀態
55            if (http_request.status == 200) { // 信息已經成功返回,開始處理信息
56                //alert(http_request.responseText);
57                document.getElementById("result").innerHtml = http_request.responseText;
58            } else { //頁面不正常
59                alert("您所請求的頁面有異常。");
60            }
61        }
62    }
63    function DOSearch() {
64        var f = document.form1;
65        var geci = f.geci.value;
66        if(geci=="") {
67            window.alert("請輸入你要查詢的歌詞");
68            f.geci.focus();
69            return false;
70        }
71        else {
72            document.getElementById("result").innerHtml="正在查詢,請稍候";
73            send_request('http://www.efish.cn/getgeci.ASPx?m='+escape(geci));
74        }
75    }
76    function submitForm() {
77        if(window.event.keyCode==13) {
78            DOSearch();
79        }
80    }
81</script>
82<p></p><p></p>
83<form id="form1" name="form1" method="post" action="">
84<center><span style="font-size:18px; color:#FF0000">十萬歌詞在線免費查詢</span></center>
85<p></p>
86  請輸入歌曲名:
87  <input name="geci" type="text" id="geci" value="東風破" size="60" height="30" maxlength="50" onKeyDown="submitForm()"  />
88  <input type="button" name="search" value="查詢歌詞" onClick="DOSearch()"><br />
89  <span id="result"></span>
90</form>
91</body>
92</Html>

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