我正在从头开始学习角度js,目前我正在尝试从json文件中检索数据。
我正在使用 - nodejs,express,AngularJS。
之前我在使用 -
时收到错误“Unexpected token D”$http.get("/models/driversList.json").success(function(response){$scope.driversList = response})
已经解决但现在我用当前的代码得到了类似的东西 -
Drivers Championship Standings
1
我猜测答案基本上是空白的,因此是“1”,但我不知道为什么会发生这种情况。
以下是我的文件 -
/app.js
app.use('/models',express.static(path.join(__dirname, 'private/data/db/models')));
app.use(express.static(path.join(__dirname, 'public')));
app.use('/scripts',express.static(path.join(__dirname, 'public/javascripts')));
app.use('/styles',express.static(path.join(__dirname, 'public/stylesheets')));
/javascripts/app.js
angular.module('F1FeederApp', [
'F1FeederApp.controllers'
]);
/javascripts/controllers.js
angular.module('F1FeederApp.controllers', []).
controller('driversController', function($scope, $http) {
$http({
method: 'GET',
url: '/models/driversList.json',
data: {},
transformResponse: function (data, headersGetter, status) {
//This was implemented since the REST service is returning a plain/text response
//and angularJS $http module can't parse the response like that.
return {data: data};
}
}).success(function(response){ alert('worked'); $scope.driversList = response}).error(function(response) {
$scope.driversList = [
{
Driver: {
givenName: response,
familyName: 'Vettel'
},
points: 322,
nationality: "German",
Constructors: [
{name: "Red Bull"}
]
},
{
Driver: {
givenName: 'Fernando',
familyName: 'Alonso'
},
points: 207,
nationality: "Spanish",
Constructors: [
{name: "Ferrari"}
]
}
];
})
});
driversList.json
[
{
Driver: {
givenName: 'Eldorado',
familyName: 'Vettel'
},
points: 322,
nationality: "German",
Constructors: [
{name: "Red Bull"}
]
},
{
Driver: {
givenName: 'Fernando',
familyName: 'Alonso'
},
points: 207,
nationality: "Spanish",
Constructors: [
{name: "Ferrari"}
]
}
]
的index.html
<!DOCTYPE html>
<html>
<head>
<title>F-1 Feeder</title>
<script src="/scripts/angular.min.js"></script>
<script src="/scripts/controllers.js"></script>
<script src="/scripts/app.js"></script>
</head>
<body ng-app="F1FeederApp" ng-controller="driversController">
<table>
<thead>
<tr><th colspan="4">Drivers Championship Standings</th></tr>
</thead>
<tbody>
<tr ng-repeat="driver in driversList">
<td>{{$index + 1}}</td>
<td>
{{driver.Driver.givenName}} {{driver.Driver.familyName}}
</td>
<td>{{driver.Constructors[0].name}}</td>
<td>{{driver.points}}</td>
</tr>
</tbody>
</table>
</body>
</html>
修改:
@rattanak
要回答第3点,是的,如果我只是将数组变量赋值给范围变量,那么它是有效的。 error()中的部分是之前工作的部分。
我也尝试了第1点,似乎json出现在“data”中,所以我将response.data分配给driversList,现在我收到了这个错误 -
Data:
[{Driver:{givenName:'Eldorado',familyName:'Vettel'},points:322,nationality:"German",Constructors:[{name:"Red Bull"}]}]
Error: [ngRepeat:dupes] http://errors.angularjs.org/1.4.7/ngRepeat/dupes?p0=driver%20in%20driversList.data&p1=string%3Ar&p2=r
at Error (native)
at http://localhost:3000/scripts/angular.min.js:6:416
at http://localhost:3000/scripts/angular.min.js:280:39
at Object.fn (http://localhost:3000/scripts/angular.min.js:129:401)
at n.a.$get.n.$digest (http://localhost:3000/scripts/angular.min.js:130:483)
at n.a.$get.n.$apply (http://localhost:3000/scripts/angular.min.js:133:512)
at h (http://localhost:3000/scripts/angular.min.js:87:376)
at K (http://localhost:3000/scripts/angular.min.js:91:499)
at XMLHttpRequest.z.onload (http://localhost:3000/scripts/angular.min.js:93:37)
表示存在重复
答案 0 :(得分:0)
似乎$ http服务无法成功解析。没有实际测试代码很难分辨。使用Chrome Dev Console,我将通过以下方式调试代码:
console.log($scope.driversList)
。在承诺的错误功能中使用console.log(error)
。
您是否可以在不使用$ http服务的情况下使代码生效,即只需将数据的数组变量分配给$scope.driversList
。
如果您能提供github链接或其他内容,我很乐意为您测试。
答案 1 :(得分:0)
您的文件driverlist.json不包含有效的JSON代码。此代码应为:
Function
纠正此问题,然后重试。
JSON始终使用双引号(&#34;)从不使用单引号(&#39;)
有关正确JSON的详细信息,请参阅http://www.json.org/