javascript结合ajax读取txt文件内容_javascript技巧

 
 
 
     
     
     
          请求数据
        
         <script><br /> function show(){<br /> Ajax('read.txt&#63;datetime=new Date.getTime ',function(str){alert(str);},function(){alert('失败了');})<br /> };<br /> </script>
     
 

  function Ajax(url,fnSucc,fnFaild)
             {
                  //1.创建ajax对象
                if(window.XMLHttpRequest)
                 {// code for IE7+, Firefox, Chrome, Opera, Safari
                      var oAjax=new XMLHttpRequest();
                 }
                else
                 {// code for IE6, IE5
                     var oAjax=new ActiveXObject("Microsoft.XMLHTTP");
                 }
                 //2.链接服务器（打开服务器的连接）
                 //open(方法，文件名，异步传输)
                 oAjax.open('GET',url,true);
                 //3.发送
                 oAjax.send();
                 //4.接收返回
                 oAjax.onreadystatechange=function()
                    {
                      if (oAjax.readyState==4)
                      {
                        if(oAjax.status==200)
                          {
                            fnSucc(oAjax.responseText); 
                          }
                       else
                          {
                           fnFaild(oAjax.status);
                          }
                      };
                 };
              }