日期:2014-05-16  浏览次数:20719 次

AJAX 在IE中总是提示没有对象 但在Firefox却没问题 - Web 开发 / Ajax
我是想使用AJAX动态从数据库中读取内容,当鼠标放在一个地方是,就会触发事件,最后读出结果,并写到页面上,数据传输的格式是用XML来搞定的。问题来了,在Firefox成功显示,但是IE中总提示没有对象!大侠们救命啊!
代码如下:加粗的地方都是缺少对象的!
var xmlHttp;
var cityName;

function china(city)
{
  xmlHttp = null;
  cityName = city;
  var url = "dynamicXML.aspx?cityName="+cityName+"&type=china";
  if(window.ActiveXObject)
  {
  xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
  }
  else if(window.XMLHttpRequest)
  {
  xmlHttp = new XMLHttpRequest();
  }
  if(xmlHttp!=null)
  {
  xmlHttp.open("GET",url,true);
  xmlHttp.onreadystatechange = statechanged1;
  xmlHttp.send(null);
  }
  else
  {
  alert("你的浏览器不支持AJAX功能!");
  }
}

function statechanged1()
{
  if(xmlHttp.readyState == 4 && xmlHttp.status == 200)
  {
  var xml = xmlHttp.responseXML;
   
  var winds = xml.getElementsByTagName("winds")[0].getElementsByTagName("wind");
  var tempers = xml.getElementsByTagName("tempers")[0];
  var img1s = xml.getElementsByTagName("img1s")[0];
  var img2s = xml.getElementsByTagName("img2s")[0];
  var weathers = xml.getElementsByTagName("weathers")[0];
  var times = xml.getElementsByTagName("times")[0];

  var Weather1="",Weather2="",Weather3="",Weather4="",Weather5="",Weather6="",Weather7="",Weather8="",
  date1="",date2="",date3="",date4="",date5="",date6="",date7="",date8="",
  WindState1="",TemperatureState1="",picture11="",picture12="",
  WindState2="",TemperatureState2="",picture21="",picture22="",
  WindState3="",TemperatureState3="",picture31="",picture32="",
  WindState4="",TemperatureState4="",picture41="",picture42="",
  WindState5="",TemperatureState5="",picture51="",picture52="",
  WindState6="",TemperatureState6="",picture61="",picture62="",
  WindState7="",TemperatureState7="",picture71="",picture72="",
  WindState8="",TemperatureState8="",picture81="",picture82="";

WindState1 = winds[0].firstChild.nodeValue;
WindState2 = winds[1].firstChild.nodeValue;
WindState3 = winds[2].firstChild.nodeValue;
WindState4 = winds[3].firstChild.nodeValue;
WindState5 = winds[4].firstChild.nodeValue;
WindState6 = winds[5].firstChild.nodeValue;
WindState7 = winds[6].firstChild.nodeValue;
WindState8 = winds[7].firstChild.nodeValue;


------解决方案--------------------
responseXML,我曾经也遇到此类问题,结果XML文件不符合XML文件标准,其它浏览器可以识别,IE非要标准的XML文件,即有一个XML头文件,一个根元素.