程序ajax请求公共组件：app-jquery-http.js

 // --------网络操作--------------------
 $.HTTP = {
     getUrlParam : function(name) {
         var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
         var r = window.location.search.substr(1).match(reg);
         if (r != null)
             return unescape(r[2]);
         return null;
     },
     // 设置url参数值，ref参数名,value新的参数值
     setUrlParam:function (url,ref, value)
     {
         var str = "";
         if (url.indexOf('?') != -1)
             str = url.substr(url.indexOf('?') + 1);
         else
             return url + "?" + ref + "=" + value;
         var returnurl = "";
         var setparam = "";
         var arr;
         var modify = "0";
         if (str.indexOf('&') != -1) {
             arr = str.split('&');
             for (i in arr) {
                 if (arr[i].split('=')[0] == ref) {
                     setparam = value;
                     modify = "1";
                 }
                 else {
                     setparam = arr[i].split('=')[1];
                 }
                 returnurl = returnurl + arr[i].split('=')[0] + "=" + setparam + "&";
             }
             returnurl = returnurl.substr(0, returnurl.length - 1);
             if (modify == "0")
                 if (returnurl == str)
                     returnurl = returnurl + "&" + ref + "=" + value;
         }
         else {
             if (str.indexOf('=') != -1) {
                 arr = str.split('=');
                 if (arr[0] == ref) {
                     setparam = value;
                     modify = "1";
                 }
                 else {
                     setparam = arr[1];
                 }
                 returnurl = arr[0] + "=" + setparam;
                 if (modify == "0")
                     if (returnurl == str)
                         returnurl = returnurl + "&" + ref + "=" + value;
             }
             else
                 returnurl = ref + "=" + value;
         }
         return url.substr(0, url.indexOf('?')) + "?" + returnurl;
     },

     // 删除参数值
     deleteUrlParam:function (url,ref) {
         var str = "";
         if (url.indexOf('?') != -1) {
             str = url.substr(url.indexOf('?') + 1);
         }
         else {
             return url;
         }
         var arr = "";
         var returnurl = "";
         var setparam = "";
         if (str.indexOf('&') != -1) {
             arr = str.split('&');
             for (i in arr) {
                 if (arr[i].split('=')[0] != ref) {
                     returnurl = returnurl + arr[i].split('=')[0] + "=" + arr[i].split('=')[1] + "&";
                 }
             }
             return url.substr(0, url.indexOf('?')) + "?" + returnurl.substr(0, returnurl.length - 1);
         }
         else {
             arr = str.split('=');
             if (arr[0] == ref) {
                 return url.substr(0, url.indexOf('?'));
             }
             else {
                 return url;
             }
         }
     },
     /**
      *
      * @param opt
      *            opt.url,postdata, success, failure, error
      */
     obj : function(opt) {

         var formData;

         if (opt.postType) {
             switch (opt.postType) {
             case "multipart":
                 formData = new FormData($(opt.formId)[0]);
                 break;
             case "form":
                 if(opt.formId){
                     formData=$(opt.formId).serialize();
                 }else{
                     formData=$.param(opt.ajaxData);
                 }
                 if(opt.extData){
                     formData += "&"+$.param(opt.extData);
                 }
                 break;
             case "json":
                 formData = JSON.stringify(opt.ajaxData);
                 break;
             default:
                 return;
             }
         } else {
             formData = opt.ajaxData;
         }

         var sopt = {
             type : opt.type == undefined ? "post" : opt.type,
             async : false,
             url : opt.url,
             data : formData,
             dataType : "json",
             success : function(json) {
                 if (json.stat == 1) {
                     if (opt.success != undefined)
                         opt.success(json.data);
                 } else {
                     if (opt.failure != undefined)
                         opt.failure(json);
                     else if (json.code != undefined) {
                         $.HTTP.show_code_err(json);
                     } else {
                         console.log("success不等于true   【url: " + opt.url + "】");
                         if (json.errorMessages != null
                                 && json.errorMessages.length > 0) {
                             console.error("错误", json.errorMessages[0]);
                         }
                     }

                 }

             },
             error : function(XMLHttpRequest, textStatus, errorThrown) {
                 var info = "XMLHttpRequest:" + JSON.stringify(XMLHttpRequest)
                         + " ;textStatus:" + textStatus + "; errorThrown:"
                         + JSON.stringify(errorThrown) + ";   【" + opt.url + "】";
                 console.log(info);
                 if (opt.error != undefined)
                     opt.error(XMLHttpRequest, textStatus, errorThrown);
                 else {
                     console.error("请求错误", "系统发生请求错误，请联系管理员解决。");
                 }
             }
         };
         if (opt.postType) {
             switch (opt.postType) {
             case "multipart":
                 sopt.async = false;
                 sopt.cache = false;
                 sopt.contentType = false;
                 sopt.processData = false;
                 break;
             case "form":
                 sopt.contentType = 'application/x-www-form-urlencoded';
                 break;
             case "json":
                 sopt.contentType = 'application/json';
                 sopt.dataType = "json";
                 break;
             default:
                 return;
             }
         }
         $.ajax($.extend(sopt, opt.ajaxOption));
     },
     list : function(opt) {

         var formData;

         if (opt.postType) {
             switch (opt.postType) {
             case "multipart":
                 formData = new FormData($(opt.formId)[0]);
                 break;
             case "form":
                 if(opt.formId){
                     formData=$(opt.formId).serialize();
                 }else{
                     formData=$.param(opt.ajaxData);
                 }
                 if(opt.extData){
                     formData += "&"+$.param(opt.extData);
                 }
                 break;
             case "json":
                 formData =JSON.stringify(opt.ajaxData);
                 break;
             default:
                 return;
             }
         } else {
             formData = opt.ajaxData;
         }

         var sopt = {
             type : opt.type == undefined ? "get" : opt.type,
             async : false,
             url : opt.url,
             data : formData,
             dataType : "json",
             success : function(json) {
                 if (json.stat == 1) {
                     if (opt.success != undefined)
                         opt.success(json.list, json.pageInfo);
                 } else {
                     if (opt.failure != undefined)
                         opt.failure(json);
                     else if (json.code != undefined) {
                         $.HTTP.show_code_err(json);
                     } else {
                         console.log("success不等于true   【url: " + opt.url + "】");
                         if (json.errorMessages != null
                                 && json.errorMessages.length > 0) {
                             console.error("错误", json.errorMessages[0]);
                         }
                     }
                 }

             },
             error : function(XMLHttpRequest, textStatus, errorThrown) {
                 var info = "XMLHttpRequest:" + JSON.stringify(XMLHttpRequest)
                         + " ;textStatus:" + textStatus + "; errorThrown:"
                         + JSON.stringify(errorThrown) + ";   【" + opt.url + "】";
                 console.log(info);
                 if (opt.error != undefined)
                     opt.error(XMLHttpRequest, textStatus, errorThrown);
                 else {
                     console.error("请求错误", "系统发生请求错误，请联系管理员解决。");
                 }
             }
         };

         if (opt.postType) {
             switch (opt.postType) {
             case "multipart":
                 sopt.async = false;
                 sopt.cache = false;
                 sopt.contentType = false;
                 sopt.processData = false;
                 break;
             case "form":
                 sopt.contentType = 'application/x-www-form-urlencoded';
                 break;
             case "json":
                 sopt.contentType = 'application/json';
                 sopt.dataType = "json";
                 break;
             default:
                 return;
             }
         }

         $.ajax($.extend(sopt, opt.ajaxOption));
     },
     show_code_err : function(json) {
         if (json.code == 1403) {
             showLogin();
             return;
         } else if (json.errorMessages != undefined
                 && json.errorMessages != null && json.errorMessages.length > 0) {
             alert(json.errorMessages[0]);
             console.error("错误", json.errorMessages[0]);
         }

     }
 }