jQuery简单封装案例分享

1. ;(function($){ 
2.     $.extend({ 
3.         send:function(options){ 
4.             var t=this; 
5.             var defaults={url:"",contentType:"application/x-www-form-urlencoded;charset=utf-8",type:"post",data:"",async:true,dataType:"json",success:function(){}}; 
6.             defaults=$.extend(defaults,options); 
7.             $.ajax({ 
8.                 url:defaults.url, 
9.                 async:defaults.async, 
10.                 type:defaults.type, 
11.                 data:defaults.data, 
12.                 dataType:defaults.dataType, 
13.                 contentType:defaults.contentType, 
14.                 success:function(data){ 
15.                     defaults.success(data); 
16.                 }, 
17.                 error:function(req,state,error){ 
18.                     alert("请求失败"); 
19.                 } 
20.             }); 
21.         }, 
22.         getUser:function(){/*判断用户是否登录*/ 
23.             var val=0; 
24.            this.send({url:"/index.php/Home/Product/isLog",async:false,success:function(data){ 
25.             val=data; 
26.            }}); 
27.            return val; 
28.         }, 
29.         login:function(){ 
30.             alert("请先登录!"); 
31.             window.location.href="/index.php/Home/Login/index"; 
32.         }, 
33.         like:function(url,callback){ 
34.             if($.getUser()==-2){ 
35.                 if(url!=""){ 
36.                     $.send({"url":url,type:"get",success:function(data){ 
37.                         if(data==-2){ 
38.                             alert("点赞成功"); 
39.                             callback&&callback(); 
40.                             }else if(data==-3){ 
41.                                 alert("您已点过赞"); 
42.                             }else{ 
43.                                 alert("操作失败"); 
44.                             } 
45.                     }}); 
46.                 } 
47.             }else{ 
48.                 $.login(); 
49.             } 
50.         }, 
51.         role:function(){ 
52.             var rel=0; 
53.             $.send({"url":"/index.php/Home/Product/log_role",type:"get",async:false,success:function(data){ 
54.                         /*-1理财师*/ 
55.                         rel=data; 
56.             }}); 
57.             return rel; 
58.         }, 
59.         loading:function(options){ 
60.             var defaulsts={type:"open",content:""}; 
61.             defaulst=$.extend(defaulsts,options); 
62.             if(defaulsts.type=="open"){ 
63.                 $("#loading").remove(); 
64.                 $("body").append("<div id='loading'><div id='mask'></div><span class='loading'>"+defaulsts.content+"</span></div>"); 
65.                 var loading=$("#loading .loading"),w=loading.width(),h=loading.outerHeight(); 
66.                 loading.css({marginLeft:-w/2,marginTop:-h/2}); 
67.             }else{ 
68.                 $("#loading").remove(); 
69.             } 
70.         } 
71.     }); 
72. })(jQuery);