angularjs的post请求参数的转换，使之跟ajax一样参数供springMVC使用

var app = angular.module("MyApp", []);
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 + ‘[]‘;
						innerObj = {};
						innerObj[fullSubName] = subValue;
						query += param(innerObj) + ‘&‘;
					}
				} else if (value instanceof Object) {
					for (subName in value) {
						subValue = value[subName];
						fullSubName = 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;
	}];
});