原始ajax例子

nbh219 · 发表于 2013-1-29 10:32:25

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<html>
  <head>
<title>原始ajax例子</title>
  </head>
  <body>
  <button id="btnajax">ajax调用</button>
  <br/>
  <div id="divResult"></div>
  <script type="text/javascript">
  //跨浏览器获取xmlhttpRequest对象
  function AjaxXhttpRequest(){
  var xmlHttp;
  try{
  xmlHttp = new XMLHttpRequest();

  }
  catch(e){
  try{
  xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
  }
  catch(e){
  try{
  xmlHttp = new ActiveXObject("Microsoft.MXLHTTP");

  }
  catch(e){
  alert("您的浏览器不支持AJAX！");
  return false;
  }

  }
  }
  return xmlHttp;
  }
  //使用XMLHttpRequest对象发送请求
  var xhr = newAjaxXmlHttpRequest();
  document.getElementById("btnajax").onclick = function(){
  var xhr = new AjaxXmlHttpRequest();
  xhr.onreadystatechange = function(){
  if(xhr.readyState == 4){
  document.getElementById("divResult").innerHTML = xhr.responseTest;
  }
  }
  xhr.open("GET","../data/AjaxGetCityInfo.aspx?resultType = html",true);
  xhr.send(null);
  }
  </script>
  </body>
</html>

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