ajax问题：open(Method,Url,IsAsync)

[yazi2wuliu]

function Ajax()
{
 var _req = !!0;
 try{_req=new XMLHttpRequest;}catch(e){try {_req=new ActiveXObject("MSXML2.XMLHTTP");}catch(e2){try {_req=new ActiveXObject("Microsoft.XMLHTTP");}catch(e3){_req=false;}}}
 if (!_req) return;
 this.req = _req;
 this.send = function(_url,_content,_callback,_method,_isasync)
 {
  var Url      = _url||"";
  var Content  = _content||"";
  var Callback = _callback;
  var Method   = _method||"GET";
  var IsAsync  = _isasync==null?true:_isasync;
  _req.open(Method,Url,IsAsync);
  if(Method=="POST")_req.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
  _req.onreadystatechange = function()
  {
   if(_req.readyState==4&&Callback)
   {
    Callback(_req.status==200?_req:null);
   }
  };
  _req.send(Method=="POST"?Content:"");
 }
 this.get = function(_url,_callback)
 {
  this.send(_url,"",_callback,"GET");
 }
 this.post = function(_url,_content,_callback)
 {
  this.send(_url,_content,_callback,"POST");
 }
}

**********************************************************************************************
/**************为什么执行到这一行_req.open(Method,Url,IsAsync);就执行不了？
看不懂可以hi我或者Q我。QQ：495724633

[yazi2wuliu]

在线等解决方案

[hoojo]

[Quote=引用楼主 yazi2wuliu 的回复:]
JScript code
function Ajax()
{
var _req = !!0;
try{_req=new XMLHttpRequest;}catch(e){try {_req=new ActiveXObject("MSXML2.XMLHTTP");}catch(e2){try {_req=new ActiveXObject("Microsoft.XMLHTTP");}catch……
[/Quote]

new Ajax().get("your server url", function (req) {
     alert(req.responseText);
});

new Ajax().post("your server url", function (req) {
     alert(req.responseText);
});

[yazi2wuliu]

不明白什么意思，

[hoojo]

你只需要创建一个Ajax对象，调用里面的get、post方法即可
new Ajax().post("servlet/userLoginServlet", function (req) {
     alert(req.responseText);
});

[Go 旅城通票]

你如何使用的？？不会跨域或者出什么问题了

[打一壶酱油]

get or post + 后台处理地址 ，如abc.jsp + 返回结果处理 ，如 alert(/*返回的数据*/)

[钢铁男子]

var aep=Ajax();
aep.open(Method,Url,IsAsync);