默认情况下，jQuery传输数据使用Content-Type: x-www-form-urlencodedand和类似于"foo=bar&baz=moe"的序列，然而AngularJS，传输数据使用Content-Type: application/json和{ "foo": "bar", "baz": "moe" }这样的json序列

　　Angular的默认请求头如下：

　　$httpProvider.defaults.headers.post: (header defaults for POST requests)

　　Content-Type: application/json

　　$httpProvider.defaults.headers.put(header defaults for PUT requests)

　　Content-Type: application/json

其中Angular的post和put都是application/json，而jquery的post请求的"Content-Type"默认为" application/x-www-form-urlencoded"，所以Angular需要把Content-Type设置成x-www-form-urlencodedand之后，还需要转换序列的格式。

 

app.config(function($httpProvider) {    $httpProvider.defaults.headers.put['Content-Type'] = 'application/x-www-form-urlencoded';    $httpProvider.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';     // Override $http service's default transformRequest    $httpProvider.defaults.transformRequest = [function(data) {        /**         * The workhorse; converts an object to x-www-form-urlencoded serialization.         * @param {Object} obj         * @return {String}         */        var param = function(obj) {            var query = '';            var 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;        };         return angular.isObject(data) && String(data) !== '[object File]'                ? param(data)                : data;    }];});