AJAX POST实例二

前台页面ceshi.htm

<script>
function getHTTPObject()
{
 var xmlhttp=false;
 try {
  xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
      }
 catch (e)
      {
  try {
   xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
       }
       catch (E)
     {
   xmlhttp = false;
  }
 }
 if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
  xmlhttp = new XMLHttpRequest();
 }
 return xmlhttp;
}
function update()
{
var xmlhttp=getHTTPObject();
  var post="test·test+test·测试";
  xmlhttp.open('POST', 'update.asp?random='+Math.random(), true);
  xmlhttp.setrequestheader("content-length",post.length);
  xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
  xmlhttp.onreadystatechange = function()
     {
    if (xmlhttp.readyState == 4 && xmlhttp.status == 200 )
     {
     var msg=document.getElementById("msg");
  msg.innerHTML=xmlhttp.responseText;
      return true;
         }
    }
 
  xmlhttp.send("act="+encodeURIComponent(escape(post)));
  }
  setInterval("update()",2000)
</script>
<div id="msg"></div>

后台update.asp

 

<%Response.CodePage=936%>
<%

Response.Charset="gb2312"

Response.Write Unescape(Request("act"))
%>

posted @ 2009-03-12 11:59  天涯海客  阅读(110)  评论(0编辑  收藏  举报