ajax技术制作得在线歌词搜索功能


答案：复制代码 代码如下:

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