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【08】AngularJS XMLHttpRequest

AngularJS XMLHttpRequest

$http 是 AngularJS 中的一个核心服务，用于读取远程服务器的数据。

读取 JSON 文件

以下是存储在web服务器上的 JSON 文件：

Customers_JSON.php

  1. [{
  2. "Name":"Alfreds Futterkiste",
  3. "City":"Berlin",
  4. "Country":"Germany"
  5. },{
  6. "Name":"Berglunds snabbköp",
  7. "City":"Luleå",
  8. "Country":"Sweden"
  9. },{
  10. "Name":"Centro comercial Moctezuma",
  11. "City":"México D.F.",
  12. "Country":"Mexico"
  13. },{
  14. "Name":"Ernst Handel",
  15. "City":"Graz",
  16. "Country":"Austria"
  17. },{
  18. "Name":"FISSA Fabrica Inter. Salchichas S.A.",
  19. "City":"Madrid",
  20. "Country":"Spain"
  21. },{
  22. "Name":"Galería del gastrónomo",
  23. "City":"Barcelona",
  24. "Country":"Spain"
  25. },{
  26. "Name":"Island Trading",
  27. "City":"Cowes",
  28. "Country":"UK"
  29. },{
  30. "Name":"Königlich Essen",
  31. "City":"Brandenburg",
  32. "Country":"Germany"
  33. },{
  34. "Name":"Laughing Bacchus Wine Cellars",
  35. "City":"Vancouver",
  36. "Country":"Canada"
  37. },{
  38. "Name":"Magazzini Alimentari Riuniti",
  39. "City":"Bergamo",
  40. "Country":"Italy"
  41. },{
  42. "Name":"North/South",
  43. "City":"London",
  44. "Country":"UK"
  45. },{
  46. "Name":"Paris spécialités",
  47. "City":"Paris",
  48. "Country":"France"
  49. },{
  50. "Name":"Rattlesnake Canyon Grocery",
  51. "City":"Albuquerque",
  52. "Country":"USA"
  53. },{
  54. "Name":"Simons bistro",
  55. "City":"København",
  56. "Country":"Denmark"
  57. },{
  58. "Name":"The Big Cheese",
  59. "City":"Portland",
  60. "Country":"USA"
  61. },{
  62. "Name":"Vaffeljernet",
  63. "City":"Århus",
  64. "Country":"Denmark"
  65. },{
  66. "Name":"Wolski Zajazd",
  67. "City":"Warszawa",
  68. "Country":"Poland"
  69. }]
 
 

 

AngularJS $http

 

  1. AngularJS $http 是一个用于读取web服务器上数据的服务。
  2. $http.get(url)是用于读取服务器数据的函数。
 

 

 

 

  1. <div ng-app="myApp" ng-controller="customersCtrl">
  3. <ul>
  4. <li ng-repeat="x in names">
  5. {{ x.Name+', '+ x.Country}}
  6. </li>
  7. </ul>
  9. </div>
  11. <script>
  12. var app = angular.module('myApp',[]);
  13. app.controller('customersCtrl',function($scope,$http){
  14. $http.get("Customers_JSON.php")
  15. .success(function(response){$scope.names = response.records;});
  16. });
  17. </script>

应用解析:

注意：以上代码的 get 请求是本站的服务器，你不能直接拷贝到你本地运行，会存在跨域问题，解决办法就是将 Customers_JSON.php 的数据拷贝到你自己的服务器上。

AngularJS 应用通过 ng-app 定义。应用在 <div> 中执行。

ng-controller 指令设置了 controller 对象 名。

函数 customersController 是一个标准的 JavaScript 对象构造器。

控制器对象有一个属性: $scope.names。

$http.get() 从web服务器上读取静态 JSON 数据。

 

当从服务端载入 JSON 数据时，$scope.names 变为一个数组。

 
魔芋练习：
 
其中，test.php 文件内容为：
  1. {"records":[{"Name":"Alfreds Futterkiste","City":"Berlin","Country":"Germany"},{"Name":"Ana Trujillo Emparedados y helados","City":"México D.F.","Country":"Mexico"},{"Name":"Antonio Moreno Taquería","City":"México D.F.","Country":"Mexico"},{"Name":"Around the Horn","City":"London","Country":"UK"},{"Name":"B's Beverages","City":"London","Country":"UK"},{"Name":"Berglunds snabbköp","City":"Luleå","Country":"Sweden"},{"Name":"Blauer See Delikatessen","City":"Mannheim","Country":"Germany"},{"Name":"Blondel père et fils","City":"Strasbourg","Country":"France"},{"Name":"Bólido 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":"México D.F.","Country":"Mexico"},{"Name":"Chop-suey Chinese","City":"Bern","Country":"Switzerland"},{"Name":"Comércio Mineiro","City":"São Paulo","Country":"Brazil"}]}
 
demo.html内容为：
 
  1. <!DOCTYPE html>
  2. <html lang="zh-cn">
  4. <head>
  5. <meta charset="utf-8">
  6. <meta name="renderer" content="webkit">
  7. <!--360,以webkit内核进行渲染-->
  8. <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
  9. <!--以最新内核进行渲染。-->
  10. <meta http-equiv="Cache-Control" content="no-siteapp"/>
  11. <!--百度禁止转码-->
  12. <title>moyu demo</title>
  13. <meta name="keywords" content="demo 测试 魔芋">
  14. <meta name="description" content="魔芋的测试示例">
  15. <meta name="robots" content="index,follow">
  16. <!--定义网页搜索引擎索引方式-->
  17. <meta name="viewport" content="width=device-width, initial-scale=1.0">
  18. <script src="http://libs.baidu.com/jquery/1.9.1/jquery.js"></script>
  19. <script src="http://apps.bdimg.com/libs/angular.js/1.3.9/angular.min.js"></script>
  20. <style>
  22. </style>
  23. </head>
  25. <body>
  26. <div ng-app="myApp" ng-controller="customersCtrl">
  27. <ul>
  28. <li ng-repeat="x in names">
  29. {{ x.Name+', '+ x.Country}}
  30. </li>
  31. </ul>
  32. </div>
  33. <script>
  34. var app = angular.module('myApp',[]);
  35. app.controller('customersCtrl',function($scope, $http){
  36. $http.get("test.php")
  37. .success(function(response){
  38. $scope.names = response.records;
  39. });
  40. });
  41. </script>
  42. </body>
  44. </html>
 
结果：
 
 
 
 
 
 
 
 
 
 
 
**





posted @ 2016-02-22 14:55  魔芋铃  阅读(240)  评论(0)  编辑  收藏  举报