$http post传值的问题

  var app = angular.module("myApp", [], function ($httpProvider) {
 
             $httpProvider.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded;charset=utf-8';
             /**
             * The workhorse; converts an object to x-www-form-urlencoded serialization.
             * @param {Object} obj
             * @return {String}
             */
             var param = function (obj) {
                 var query = '', name, value, fullSubName, subName, subValue, innerObj, i;
 
                 for (name in obj) {
                     value = obj[name];
 
                     if (value instanceof Array) {
                         for (i = 0; i < value.length; ++i) {
                             subValue = value[i];
                             fullSubName = name + '[' + i + ']';
                             innerObj = {};
                             innerObj[fullSubName] = subValue;
                             query += param(innerObj) + '&';
                         }
                     }
                     else if (value instanceof Object) {
                         for (subName in value) {
                             subValue = value[subName];
                             fullSubName = name + '[' + subName + ']';
                             innerObj = {};
                             innerObj[fullSubName] = subValue;
                             query += param(innerObj) + '&';
                         }
                     }
                     else if (value !== undefined && value !== null)
                         query += encodeURIComponent(name) + '=' + encodeURIComponent(value) + '&';
                 }
 
                 return query.length ? query.substr(0, query.length - 1) : query;
             };
 
             // Override $http service's default transformRequest
             $httpProvider.defaults.transformRequest = [function (data) {
                 return angular.isObject(data) && String(data) !== '[object File]' ? param(data) : data;
             } ];
 
         });

   app.controller("addController", ["$scope", "$http", function ($scope, $http) {
 
             $scope.save = function () {
                 if ($scope.myForm.$valid) {
                     var data = { "name": $scope.txtname, "address": $scope.txtaddress, "phone": $scope.txtphone, "zipcode": $scope.txtzipcode, "isdefault": $scope.cbxisdefault };
                     $http.post("AddUserAddress", data).success(function (result) {
                         alert(result);
                     });
                 }
             }
         } ]);

只有配置了$http的默认文档类型才能再后台用Request来获取提交的参数

Content-Type