列出AngularJS中使用$ http.get创建的列表中的所有元素

时间:2018-07-04 11:52:47

标签: javascript angularjs

我是AngularJS编程的新手,我写了一些代码,没有任何错误,在控制台中它提供了我想要的内容,但未显示在网页上。我正在尝试进行2个HTTP调用,进行获取和发布,获取向我展示列表中所有元素,并在此列表中添加元素。它们正在工作,但是当我尝试列出所有元素时,它什么也没给我显示:(

这是我的代码:

dataContext.js

(function () {
 'use strict';
  angular.module('app').service('dataContext', ['httpService', function (httpService) {
    var service = {
        getAllUsers: getAllUsers,
        addUser: addUser,
        saveMessage: saveMessage
    };

    function getAllUsers() {
        return httpService.get("api/users");
    }

    function addUser(name) {
        return httpService.post("api/users", { name: name });
    }

dashboard.js

(function () {
    'use strict';
     angular.module('app').controller("dashboardController", ['dataContext', function (dataContext) {
    var vm = this;

    vm.getUser = function () {
        dataContext.getAllUsers().then(
            function (response) {
                alert(response.data[0].Name);
            },
            function (error) {
                console.log(error);
            }
        );
    };

    vm.postUser = function () {
        dataContext.addUser(vm.username).then(
            function (response) {
                alert("User, " + vm.username + " was added!");
            },
            function (error) {
                console.log(error);
            }
        ); 
    };
})();

httpService.js

(function () {
'use strict';
angular.module('app').service('httpService', ['$http', '$q', 'backendConfig', function ($http, $q, backendConfig) {
    var service = {
        get: get,
        post: post
    };

    function get(path) {
        var deferred = $q.defer();

        $http.get(backendConfig.url + path).then(
            function (response) {
                deferred.resolve(response);
            },

            function (err, status) {
                deferred.reject(err);
            }
        );
        return deferred.promise;
    }

    function post(path, data) {
        var deferred = $q.defer();
        $http.post(backendConfig.url + path, data).then(
            function (response) {
                deferred.resolve(response);
            },

            function (err, status) {
                deferred.reject(err);
            }
        );
        return deferred.promise;
    }

    return service;
}]);})();

和我的 dashboard.html

<div ng-controller="dashboardController as vm">
<button ng-click="vm.getUser()">Get</button>
<button ng-click="vm.postUser()">Post</button>
<input ng-model="vm.username" />
<ul>
    <li ng-repeat="obj in vm.users">{{obj.Name}}</li>
</ul>

列表的名称是users,我有一个类Users,带有字符串Name,一切都应该正确,但我不知道为什么它不起作用。任何帮助都会很棒

谢谢

1 个答案:

答案 0 :(得分:1)

替换

alert(response.data[0].Name);

使用

vm.users = response.data;