使用Angular从键值数组获取JSON值

嗨，我是个新手，我只是想学习如何做一些事情。我一直在试图显示以下数据。使用chrome的Batarang插件，我可以看到我的restful Web服务返回以下json，该json被包装到我的模型中

    { 
    course:  { 
        country: Test1
        numberEnrolledPerMonthPerWeek:  { 
            entry: 
            [  { 
                key: 2
                value:  { 
                    numberEnrolled: 0
                    weeks: 2
                    year: 2011
                } 
            } ,  { 
                key: 3
                value:  { 
                    numberEnrolled: 4
                    weeks: 3
                    year: 2011
                } 
            } ,  { 
                key: 4
                value:  { 
                    numberEnrolled: 6
                    weeks: 4
                    year: 2011
                } 
            } ,  { 
                key: 8
                value:  { 
                    numberEnrolled: 0
                    weeks: 8
                    year: 2011
                } 
            }  
            ]
        } 
    } 
 } 

我试图将每个键的numberEnrolled值导出到一列中。因此，在我的html中，我有以下内容

<table class="table table-striped table-bordered">
            <tr ng-repeat="course in enrolledcourses.enrolledEnrolment">
                <td>                                
                    {{course.country}}
                </td>   
                <td>
                    {{course.numberEnrolledPerMonthPerWeek[2].numberEnrolled}}
                </td>               
            </tr>   
        </table>

我的控制器代码如下

.controller('PeopleCtrl', function($scope, recruitmentFactory) {
    $scope.enrolledcourses = recruitmentFactory.get();


    $scope.test = "hello";
    $scope.save = function() {
        alert("save has been called");
    };
})

试一试

---

好的，我做了下面的步骤来得到这个值

{{course.numberEnrolledPerMonthPerWeek.entry[2].value.numberEnrolled}}  

---

首先，您的JSON有很多错误。也许这只是你得到的结果，但以防万一： 缺少逗号，Test是一个符号，但我想它应该是一个字符串

$scope.enrolledcourses = {
    course : {
    country: 'Test1',
    numberEnrolledPerMonthPerWeek: {
        entry: [{
            key: 2,
            value: {
                numberEnrolled: 0,
                weeks: 2,
                year: 2011,
            }
        }, {
            key: 3,
            value: {
                numberEnrolled: 4,
                weeks: 3,
                year: 2011
            }
        }, {
            key: 4,
            value: {
                numberEnrolled: 6,
                weeks: 4,
                year: 2011
            }
        }, {
            key: 8,
            value: {
                numberEnrolled: 0,
                weeks: 8,
                year: 2011
            }
        }]
    }
    }
};

然后，您的html需要访问正确的属性：

    <tr ng-repeat="course in enrolledcourses">
        <td>{{course.country}}</td>
        <td>{{course.numberEnrolledPerMonthPerWeek.entry[2].value.numberEnrolled}}</td>
    </tr>

{{当然。国家}
{{course.numbernRolledPermonthPerweek.entry[2].value.numbernRolled}

---

这是一个

只是为了提供一些额外的帮助：我在弄清楚如何在JSON数据中导航时经常遇到这个问题。尝试使用可视化工具，并验证JSON以确保其正确性

以下是我用来可视化数据的方法： 此处验证：

---

如果这是在控制器中，请显示它。模型是否在

$scope

中？在任何情况下，numberEnrolled PermonthPerweek都是一个对象，并且字段

2

不存在。我可以看到它是一个对象，但是我如何获得该对象中的条目尝试上述操作会产生{“key”：“4”，“value”：{“numberEnrolled”：“6”，“weeks”：“4”，“year”：“2011”}

{{course.numberEnrolledPerMonthPerWeek.entry[2].value.numberEnrolled}}  

$scope.enrolledcourses = {
    course : {
    country: 'Test1',
    numberEnrolledPerMonthPerWeek: {
        entry: [{
            key: 2,
            value: {
                numberEnrolled: 0,
                weeks: 2,
                year: 2011,
            }
        }, {
            key: 3,
            value: {
                numberEnrolled: 4,
                weeks: 3,
                year: 2011
            }
        }, {
            key: 4,
            value: {
                numberEnrolled: 6,
                weeks: 4,
                year: 2011
            }
        }, {
            key: 8,
            value: {
                numberEnrolled: 0,
                weeks: 8,
                year: 2011
            }
        }]
    }
    }
};

    <tr ng-repeat="course in enrolledcourses">
        <td>{{course.country}}</td>
        <td>{{course.numberEnrolledPerMonthPerWeek.entry[2].value.numberEnrolled}}</td>
    </tr>