AngularJs中的服务

一、angularJs中的简单服务应用

下面的例子让我们明白在AngularJs中如何去调用文件中的数据,从而将文件中的数据显示在页面上;改变url的地址,也可以去调用后台接口.

实例：

<!DOCTYPE html>

<html>

	<head>

		<meta charset="UTF-8">

		<title></title>

	</head>

	<body ng-app="myApp" ng-controller="LoadDataCtrl">

		<ul >

			<li ng-repeat="user in users">

				{{user.name}}

			</li>

		</ul>

	</body>

	<script type="text/javascript" src="js/angular.js" ></script>

	<script type="text/javascript" src="js/http.js" ></script>

</html>

http.js

var myModule=angular.module("myApp",[]);

//myModule.controller('LoadDataCtrl',['$scope','$http',function($scope){

myModule.controller('LoadDataCtrl',function($scope,$http){

	$http({

		method:'GET',

		url:'js/data.json'

	}).success(function(data,status,headers,config){

		console.log("success...");

		console.log(data);

		$scope.users=data;

	}).error(function(data,status,headers,config){

		console.log("error...");

	});

});

data.json:

html运行结果：

二、创建自定义服务(我们自己的服务)

明白两点：

1.如何注册服务

2.如何使用服务

完整的实例：

<!DOCTYPE html>

<html>

	<head>

		<meta charset="UTF-8">

		<title></title>

	</head>

	<body ng-app="MyServiceApp" ng-controller="ServiceController">

	用户名：<input type="text" ng-model="username" placeholder="请输入用户名">

	<ul >

			<li ng-repeat="user in users">

				{{user.name}}

			</li>

		</ul>

	</body>

	<script type="text/javascript" src="js/angular.js" ></script>

	<script type="text/javascript" src="js/service.js" ></script>

</html>

service.js:

var myServiceApp = angular.module("MyServiceApp",[]);

myServiceApp.factory('userListService',function($http){

	var doRequest = function(username,path){

		return $http({

			method: 'GET',

			url:'js/data.json'

		});

	};

	return {

		userList: function(username) {

			return doRequest(username,'userList');

		}

	};

});

myServiceApp.controller("ServiceController",function($scope,$timeout,userListService){

	var timeout;

	$scope.$watch('username',function(newUserName) {

		if(newUserName){

			if(timeout){

				$timeout.cancel(timeout);

			}

		timeout = $timeout(function() {

			userListService.userList(newUserName)

			.success(function(data,status) {

				$scope.users = data;

			});

		},350);

		}

	});

});