$http?是 AngularJS 中的一個核心服務，用于讀取遠程服務器的數據。

讀取 JSON 文件

下是存儲在web服務器上的 JSON 文件：

{"records": [{"Name": "Alfreds Futterkiste","City": "Berlin","Country": "Germany"},{"Name": "Ana Trujillo Emparedados y helados","City": "Mxico D.F.","Country": "Mexico"},{"Name": "Antonio Moreno Taquera","City": "Mxico D.F.","Country": "Mexico"},{"Name": "Around the Horn","City": "London","Country": "UK"},{"Name": "B's Beverages","City": "London","Country": "UK"},{"Name": "Berglunds snabbk枚p","City": "Lule","Country": "Sweden"},{"Name": "Blauer See Delikatessen","City": "Mannheim","Country": "Germany"},{"Name": "Blondel pre et fils","City": "Strasbourg","Country": "France"},{"Name": "Blido Comidas preparadas","City": "Madrid","Country": "Spain"},{"Name": "Bon app'","City": "Marseille","Country": "France"},{"Name": "Bottom-Dollar Marketse","City": "Tsawassen","Country": "Canada"},{"Name": "Cactus Comidas para llevar","City": "Buenos Aires","Country": "Argentina"},{"Name": "Centro comercial Moctezuma","City": "Mxico D.F.","Country": "Mexico"},{"Name": "Chop-suey Chinese","City": "Bern","Country": "Switzerland"},{"Name": "Comrcio Mineiro","City": "So Paulo","Country": "Brazil"}] }

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AngularJS $http

AngularJS $http 是一個用于讀取web服務器上數據的服務。

$http.get(url) 是用于讀取服務器數據的函數。

<div ng-app="myApp" ng-controller="customersCtrl"> <ul><li ng-repeat="x in names">{{ x.Name ', ' x.Country }}</li> </ul></div> <script type="text/javascript" src="js/angular.min.js"></script> <script> var app = angular.module('myApp', []); app.controller('customersCtrl', function($scope, $http) {$http.get("js/text.json").success(function(response) {$scope.names = response.records;}); }); </script>

結果：

• Alfreds Futterkiste, Germany
• Ana Trujillo Emparedados y helados, Mexico
• Antonio Moreno Taquera, Mexico
• Around the Horn, UK
• B's Beverages, UK
• Berglunds snabbk枚p, Sweden
• Blauer See Delikatessen, Germany
• Blondel pre et fils, France
• Blido Comidas preparadas, Spain
• Bon app', France
• Bottom-Dollar Marketse, Canada
• Cactus Comidas para llevar, Argentina
• Centro comercial Moctezuma, Mexico
• Chop-suey Chinese, Switzerland
• Comrcio Mineiro, Brazil ??

應用解析:

AngularJS 應用通過?ng-app?定義。應用在 <div> 中執行。

ng-controller?指令設置了?controller 對象?名。

函數?customersController?是一個標準的 JavaScript?對象構造器。

控制器對象有一個屬性:?$scope.names。

$http.get()?從web服務器上讀取靜態?JSON 數據。

服務器數據文件為： ?我這兒是寫了text.json。

當從服務端載入 JSON 數據時，$scope.names?變為一個數組。

?注：以上代碼也可以用于讀取數據庫數據。

轉載地址：http://www.runoob.com/angularjs/angularjs-http.html

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