ajax技术制作得在线歌词搜索功能

日期：2020-06-27 栏目：程序人生浏览：次

<!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">

</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>

转载注明出处：https://www.heiqu.com/wfzfzp.html

ajax技术制作得在线歌词搜索功能

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