javascript封装的ajax函数库

　　下面是封装好的ajax的函数

 1 function AjaxObj() {
 2     this.xmlHttp = null;
 3     this.Request = function(method, url, data, callback, sync) {
 4         if (window.ActiveXObject) {
 5             this.xmlHttp = new ActiveXObject("Microsoft.XMLHttp");
 6         } else if (window.XMLHttpRequest) {
 7             this.xmlHttp = new XMLHttpRequest();
 8             if (this.xmlHttp.overrideMimeType) {
 9                 this.xmlHttp.overrideMimeType('text/xml');
10             }
11         }
12         if (this.xmlHttp) {
13             var self = this;
14             if (callback)
15                 this.xmlHttp.onreadystatechange = function(){callback(self.xmlHttp);};
16             else
17                 this.xmlHttp.onreadystatechange = function(){return;};
18             if (!method)
19                 method = "POST";
20             method = method.toUpperCase();
21             if (method == 'GET') {
22                 this.xmlHttp.open('GET', url + ((typeof data=="string")?('?' + data):""), typeof sync == "boolean" ? sync : true);
23                 this.xmlHttp.send(null);
24             } else {
25                 this.xmlHttp.open('POST', url, typeof sync == "boolean" ? sync : true);
26                 this.xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
27                 this.xmlHttp.send(data);
28             }
29         }
30     };
31     this.abort = function() {
32         if (this.xmlHttp)
33             this.xmlHttp.abort();
34     };
35     this.swRequest = function(cfg){
36         if(!cfg.url)
37             return;
38         this.Request(cfg.method||"POST",cfg.url||"",cfg.data,function(req){
39             if(req.readyState==4){
40                 if(req.status==200||req.status==0){
41                      var obj = null;
42                      var text = req.responseText;
43                      eval("obj = "+ text);
44                      cfg.success.call(cfg.soap||this,obj);
45                     return;
46                 }else{
47                      cfg.failure.call(cfg.soap||this,"错误!");
48                      return;
49                 }
50             }
51         });
52     };
53 }

 调用方法：

 1 ajax.swRequest({
 2     method:"POST",
 3     sync:false,
 4     url:'?a=manage&m=checkUser',
 5     data:"user="+user.value,
 6     success: function(msg) {
 7         if(msg==1){
 8             flag.value = 'true';
 9         } else {
10             flag.value = '';
11         }
12     },
13     failure: function(a) {
14         alert(a);
15     },
16     soap:this
17 });

本文链接：javascript封装的ajax函数库

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posted @ 2013-11-18 09:08  tuisiyuan  阅读(248)  评论(0)    收藏  举报