1. factory方式创建的服务，作用就是返回一个有属性有方法的对象。相当于：var f = myFactory();
<!DOCTYPE html><html><head><meta charset="utf-8"><script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script></head><body><div ng-app="myApp" ng-controller="myCtrl"> ???<p>{{r}}</p></div><script> ???//创建模型 ???var app = angular.module(‘myApp‘, []); ???//通过工厂模式创建自定义服务 ???app.factory(‘myFactory‘, function() { ???????var service = {};//定义一个Object对象‘ ???????service.name = "张三"; ???????var age;//定义一个私有化的变量 ???????//对私有属性写getter和setter方法 ???????service.setAge = function(newAge){ ???????????age = newAge; ???????} ???????service.getAge = function(){ ???????????return age; ????????} ???????return service;//返回这个Object对象 ???}); ???//创建控制器 ???app.controller(‘myCtrl‘, function($scope, myFactory) { ???????myFactory.setAge(20); ???????$scope.r =myFactory.getAge(); ???????alert(myFactory.name); ???});</script></body></html>在自定义服务里注入服务示例，但不能注入$scope作用域对象。
<script> ???var app = angular.module(‘myApp‘, []); ???app.factory(‘myFactory‘, function($http,$q) { ???????var service = {}; ???????service.name = "张三"; ???????//请求数据 ???????service.getData = function(){ ???????????var d = $q.defer(); ???????????$http.get("url")//读取数据的函数。 ???????????.success(function(response) { ???????????????d.resolve(response); ???????????}) ???????????.error(function(){ ???????????????d.reject("error"); ???????????}); ???????????return d.promise; ???????} ??????????????return service; ???}); ???app.controller(‘myCtrl‘, function($scope, myFactory) { ???????//alert(myFactory.name); ???????myFactory.getData().then(function(data){ ???????????console.log(data);//正确时走这儿 ???????},function(data){ ???????????alert(data)//错误时走这儿 ???????});; ???});</script>2.service
通过service方式创建自定义服务，相当于new的一个对象：var s = new myService();，只要把属性和方法添加到this上才可以在controller里调用。
<div ng-app="myApp" ng-controller="myCtrl"> ???<h1>{{r}}</h1></div><script> ???var app = angular.module(‘myApp‘, []); ???app.service(‘myService‘, function($http,$q) { ???????this.name = "service"; ???????this.myFunc = function (x) { ???????????return x.toString(16);//转16进制 ???????} ???????this.getData = function(){ ???????????var d = $q.defer(); ???????????$http.get("ursl")//读取数据的函数。 ???????????????.success(function(response) { ???????????????d.resolve(response); ???????????}) ???????????????.error(function(){ ???????????????alert(0) ???????????????d.reject("error"); ???????????}); ???????????return d.promise; ???????} ???}); ???app.controller(‘myCtrl‘, function($scope, myService) { ???????$scope.r = myService.myFunc(255); ???????myService.getData().then(function(data){ ???????????console.log(data);//正确时走这儿 ???????},function(data){ ???????????alert(data)//错误时走这儿 ???????}); ???});</script>3. provider
只有provder是能传 .config() 函数的 service。如果想在 service 对象启用之前，先进行模块范围的配置，那就应该选择 provider。需要注意的是：在config函数里注入provider时，名字应该是：providerName+Provider.
使用Provider的优点就是，你可以在Provider对象传递到应用程序的其他部分之前在app.config函数中对其进行修改。
当你使用Provider创建一个service时，唯一的可以在你的控制器中访问的属性和方法是通过$get()函数返回内容。
<body><div ng-app="myApp" ng-controller="myCtrl"></div><script> ???var app = angular.module(‘myApp‘, []); ???//需要注意的是：在注入provider时，名字应该是：providerName+Provider ??????app.config(function(myProviderProvider){ ???????myProviderProvider.setName("大圣"); ??????????}); ???app.provider(‘myProvider‘, function() { ???????var name=""; ???????var test={"a":1,"b":2}; ???????//注意的是，setter方法必须是(set+变量首字母大写)格式 ???????this.setName = function(newName){ ???????????name = newName ?????????} ???????this.$get =function($http,$q){ ???????????return { ???????????????getData : function(){ ???????????????????var d = $q.defer(); ???????????????????$http.get("url")//读取数据的函数。 ???????????????????????.success(function(response) { ???????????????????????????d.resolve(response); ???????????????????????}) ???????????????????????.error(function(){ ???????????????????????????d.reject("error"); ???????????????????????}); ???????????????????return d.promise; ???????????????}, ???????????????"lastName":name, ???????????????"test":test ???????????} ??????????} ???}); ???app.controller(‘myCtrl‘, function($scope,myProvider) { ???????alert(myProvider.lastName); ???????alert(myProvider.test.a) ???????myProvider.getData().then(function(data){ ???????????//alert(data) ???????},function(data){ ???????????//alert(data) ???????}); ???});</script></body>AngularJS——自定义服务详解(factory、service、provider)
原文地址：https://www.cnblogs.com/hjsblogs/p/8434389.html