无法在AngularJS中打印数组内的数组

时间：2018-04-27 10:57:38

标签： javascript angularjs

在AngularJS中读取JSON

我正在尝试学习AngularJS，但在检索JSON数据方面，我遇到了一个小问题。

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<html>

<head>
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
  <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js" integrity="sha384-cs/chFZiN24E4KMATLdqdvsezGxaGsi4hLGOzlXwp5UZB1LY//20VyM2taTB4QvJ" crossorigin="anonymous"></script>
  <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js" integrity="sha384-uefMccjFJAIv6A+rW+L4AHf99KvxDjWSu1z9VI8SKNVmz4sk7buKt/6v9KI65qnm" crossorigin="anonymous"></script>
  <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/ODataResources/1.0.25/odataresources.min.js"></script>
</head>

<script>
  var app = angular.module('links', []);
  app.controller('feedLinks', function($scope, $http) {
    const BASE_URL = 'http://services.odata.org/V3/OData/OData.svc/'
    $http.get(BASE_URL)
      .then(function(response) {
        $scope.rawdata = response.data; //array with two elements - one link, and an array with data
      });
  });
</script>

<body>
  <div class="container main-container">
    <div class="row">
      <div class="col menu">
        <nav class="navbar navbar-expand-lg navbar-light bg-light">
          <a class="navbar-brand" href="#">Navbar</a>
          <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
    							<span class="navbar-toggler-icon"></span>
    						</button>
          <div class="collapse navbar-collapse" id="navbarNav">
            <ul>
              <div ng-app="links" ng-controller="feedLinks">
                <li ng-repeat="element in rawdata">
                  {{ element }}
                  <a class="nav-link" href="{{ element.url }}">{{ element.name }}</a>
                </li>
              </div>
            </ul>
          </div>
        </nav>
      </div>
    </div>
  </div>
</body>

</html>
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我得到的数组包含两个元素，一个链接和另一个数组，而不是获取一个包含我可以创建链接的数据的数组。而且我无法在数组中打印数组......任何指针都会受到赞赏。

现在在电话上，这是一个截图：

2 个答案:

答案 0 :(得分：0)

试试这个，

<html>
  <head>
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
    <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js" integrity="sha384-cs/chFZiN24E4KMATLdqdvsezGxaGsi4hLGOzlXwp5UZB1LY//20VyM2taTB4QvJ" crossorigin="anonymous"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js" integrity="sha384-uefMccjFJAIv6A+rW+L4AHf99KvxDjWSu1z9VI8SKNVmz4sk7buKt/6v9KI65qnm" crossorigin="anonymous"></script>
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/ODataResources/1.0.25/odataresources.min.js"></script>
  </head>

  <script>

    var app = angular.module('links', []);
    app.controller('feedLinks', function($scope, $http) {
        const BASE_URL = 'http://services.odata.org/V3/OData/OData.svc/'
        $http.get(BASE_URL)
        .then(function(response) {
            $scope.rawdata = response.data; //array with two elements - one link, and an array with data
        });
    });

  </script>

  <body>
        <div class="container main-container">
            <div class="row">
                <div class="col menu">
                    <nav class="navbar navbar-expand-lg navbar-light bg-light">
                        <a class="navbar-brand" href="#">Navbar</a>
                        <button class="navbar-toggler" type="button"
                                data-toggle="collapse"
                                data-target="#navbarNav"
                                aria-controls="navbarNav"
                                aria-expanded="false"
                                aria-label="Toggle navigation">
                            <span class="navbar-toggler-icon"></span>
                        </button>
                        <div class="collapse navbar-collapse" id="navbarNav">
                        <ul>
                            <div ng-app="links" ng-controller="feedLinks">
                                <li ng-repeat="element in rawdata.value">
                                    <a class="nav-link" href="{{ element }}"> 
                                     {{ element.name }}
                                    </a>
                                </li>
                            </div>
                        </ul>
                      </div>
                    </nav>
                </div>
            </div>
        </div>
    </body>
</html>

答案 1 :(得分：-1)

我认为你的响应是一个JSON字符串，需要先解析才能使用它。试试'JSON.parse（response.data）'

https://www.digitalocean.com/community/tutorials/how-to-work-with-json-in-javascript

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