How to change the constructor AJAXRequest function to simplify the use of parameters
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Update:
1) change the constructor to make it easier to use with parameters
Class name: AJAXRequest
Creation method:
Var ajaxobj=new AJAXRequest (method,url,async,content,callback)
Return false if creation fails
Attribute: method-request method, string, POST or GET. Default is POST
Url-request URL, string, empty by default
Async-whether asynchronous. True is asynchronous, false is synchronous. Default is true.
Content-the content of the request. If the request method is POST, this property needs to be set. Default is empty.
Callback-callback function, that is, the function that is called when the response content is returned. By default, the callback function is returned directly. The callback function has a parameter of XMLHttpRequest object, that is, the callback function should be defined as follows: function mycallback (xmlobj)
Method: send ()-send a request with no parameters
An example:
The code is as follows:
/ / request method GET,URL is default.asp, asynchronous
Var ajaxobj=new AJAXRequest ("GET", "default.asp", true,null,MyCallback); / / create AJAX object
Ajaxobj.send (); / / send the request
Function MyCallback (xmlObj) {
[xss_clean] (xmlobj.responseText)
}
Ajaxrequest.js
The code is as follows:
/ *--
Author: xujiwei
Website: http://www.xujiwei.cn
E-mail: vipxjw@163.com
Copyright (c) 2006, All Rights Reserved
-- * /
Function AJAXRequest (pmethod,purl,pasync,pcontent,pcallback) {
Var xmlObj = false
Var CBfunc,ObjSelf
ObjSelf=this
Try {xmlObj=new XMLHttpRequest;}
Catch (e) {
Try {xmlObj=new ActiveXObject ("MSXML2.XMLHTTP");}
Catch (E2) {
Try {xmlObj=new ActiveXObject ("Microsoft.XMLHTTP");}
Catch (e3) {xmlObj=false;}
}
}
If (! xmlObj) return false
This.method=pmethod
This.url=purl
This.async=pasync
This.content=pcontent
This.callback=pcallback
This.send=function () {
If (! this.method | |! this.url | |! this.async) return false
XmlObj.open (this.method, this.url, this.async)
If (this.method== "POST") xmlObj.setRequestHeader ("Content-Type", "application/x-www-form-urlencoded")
XmlObj.onreadystatechange=function () {
If (xmlObj.readyState==4) {
If (xmlObj.status==200) {
ObjSelf.callback (xmlObj)
}
}
}
If (this.method== "POST") xmlObj.send (this.content)
Else xmlObj.send (null)
}
}
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