ajax技术制作得在线歌词搜索功能
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
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<title>无标题文档</title>
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</head>
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<body>
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<style type="text/css">
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<!--
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body {
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background-color: #FFFFFF;
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font-size: 85%;
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font-family: Verdana;
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margin-top : 10px;
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margin-left : 10px;
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}
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a:link{color:#3737c8}
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a:active {color: #f00;}
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a:visited {color:#639;}
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-->
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</style>
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<script language="javascript">
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var http_request = false;
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function send_request(url) {//初始化、指定处理函数、发送请求的函数
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http_request = false;
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//开始初始化XMLHttpRequest对象
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if(window.XMLHttpRequest) { //Mozilla 浏览器
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http_request = new XMLHttpRequest();
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if (http_request.overrideMimeType) {//设置MiME类别
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http_request.overrideMimeType('text/xml');
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}
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}
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else if (window.ActiveXObject) { // IE浏览器
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try {
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http_request = new ActiveXObject("Msxml2.XMLHTTP");
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} catch (e) {
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try {
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http_request = new ActiveXObject("Microsoft.XMLHTTP");
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} catch (e) {}
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}
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}
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if (!http_request) { // 异常,创建对象实例失败
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window.alert("不能创建XMLHttpRequest对象实例.");
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return false;
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}
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http_request.onreadystatechange = processRequest;
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// 确定发送请求的方式和URL以及是否同步执行下段代码
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http_request.open("GET", url, true);
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http_request.send(null);
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}
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// 处理返回信息的函数
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function processRequest() {
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if (http_request.readyState == 4) { // 判断对象状态
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if (http_request.status == 200) { // 信息已经成功返回,开始处理信息
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//alert(http_request.responseText);
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document.getElementById("result").innerHTML = http_request.responseText;
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} else { //页面不正常
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alert("您所请求的页面有异常。");
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}
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}
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}
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function dosearch() {
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var f = document.form1;
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var geci = f.geci.value;
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if(geci=="") {
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window.alert("请输入你要查询的歌词");
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f.geci.focus();
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return false;
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}
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else {
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document.getElementById("result").innerHTML="正在查询,请稍候
";
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send_request('http://www.efish.cn/getgeci.aspx?m='+escape(geci));
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}
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}
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function submitForm() {
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if(window.event.keyCode==13) {
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dosearch();
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}
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}
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</script>
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<p></p><p></p>
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<form id="form1" name="form1" method="post" action="">
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<center><span style="font-size:18px; color:#FF0000">十万歌词在线免费查询</span></center>
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<p></p>
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请输入歌曲名:
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<input name="geci" type="text" id="geci" value="东风破" size="60" height="30" maxlength="50" onKeyDown="submitForm()" />
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<input type="button" name="search" value="查询歌词" onClick="dosearch()"><br />
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<span id="result"></span>
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</form>
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</body>
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</html>
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