一份老外写的XMLHttpRequest代码多浏览器支持兼容性
2024-09-06 12:43:53
供稿：网友
这几天要构思用Javascript调用Asp.Net的WebService，需要到XMLHTTP来支持，但发现Opera的XMLHttpRequest很烂，实在支持不下去，后来到处找，终于发现这份代码，在Opera中是利用java.net.URL等类来实现的，不敢独享，特发上来与大家同乐。
代码如下:
/*
Cross-Browser XMLHttpRequest v1.2
=================================
Emulate Gecko 'XMLHttpRequest()' functionality in IE and Opera. Opera requires
the Sun Java Runtime Environment <http://www.java.com/>.
by Andrew Gregory
http://www.scss.com.au/family/andrew/webdesign/xmlhttprequest/
This work is licensed under the Creative Commons Attribution License. To view a
copy of this license, visit http://creativecommons.org/licenses/by-sa/2.5/ or
send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California
94305, USA.
Attribution: Leave my name and web address in this script intact.
Not Supported in Opera
----------------------
* user/password authentication
* responseXML data member
Not Fully Supported in Opera
----------------------------
* async requests
* abort()
* getAllResponseHeaders(), getAllResponseHeader(header)
*/
// IE support
if (window.ActiveXObject && !window.XMLHttpRequest) {
window.XMLHttpRequest = function() {
var msxmls = new Array(
'Msxml2.XMLHTTP.5.0',
'Msxml2.XMLHTTP.4.0',
'Msxml2.XMLHTTP.3.0',
'Msxml2.XMLHTTP',
'Microsoft.XMLHTTP');
for (var i = 0; i < msxmls.length; i++) {
try {
return new ActiveXObject(msxmls[i]);
} catch (e) {
}
}
return null;
};
}
// Gecko support
/* ;-) */
// Opera support
if (window.opera && !window.XMLHttpRequest) {
window.XMLHttpRequest = function() {
this.readyState = 0; // 0=uninitialized,1=loading,2=loaded,3=interactive,4=complete
this.status = 0; // HTTP status codes
