使用Java后端的angularjs

2023年3月18日 199次阅读

我试图以json格式从服务器(servlet)获取数据并添加到表中.数据从服务器端成功获取,当我使用console.log(数据)时,它会打印数据,但不会将其添加到表中.

module.js：

var module = angular.module('myApp', []);

module.service('ContactService', function($http) {

    var contacts = [{ }];
    this.getContacts = function($http) {
        var response = $http.get("/PersonalDetail/AngularServlet");
        response.success(function(data, status, header, config) {
            contacts=data;
            console.log("contacts: " + contacts);
            return contacts;
        });
        response.error(function(data, status, header, config) {
            return null
        });
        return contacts;
    }

    this.list = function($http) {
        return  this.getContacts($http);
    }
});

controller.js

module.controller("ContactController", function($scope,$http,ContactService) {
    $scope.contacts=ContactService.list($http);
}

的index.html

<html data-ng-app="myApp">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <!--<title>JSP Page</title>-->
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.5/angular.min.js" type="text/javascript"></script>
    <script src="js/module/module.js"  type="text/javascript" ></script>
    <script src="js/controller/controller.js" type="text/javascript" ></script>
</head>
<body>
    <div data-ng-controller="ContactController">           
        <table class="table table-striped table-bordered" bgcolor="orange" border="1">
            <thead>
                <tr>
                    <th>Name   </th>
                    <th>Email  </th>
                    <th>Phone  </th>
                    <th>Action </th>
                </tr>
            </thead>
            <tbody>
                <tr ng-repeat="contact in contacts">
                    <td>{{ contact.name}}</td>
                    <td>{{ contact.email}}</td>
                    <td>{{ contact.phone}}</td>                       
                </tr>
            </tbody>
        </table>
    </div>
</body>

最佳答案 这是处理Angular中的promise的正确方法.在控制器中：

module.controller("ContactController", function($scope, $http, ContactService) {
    ContactService.list().then(function(data) {
        $scope.contacts = data;
    });
}

然后修改服务：

module.service('ContactService', function ($http) {

    this.getContacts = function () {
        return $http.get("/PersonalDetail/AngularServlet").then(function (data, status, header, config) {
            return contacts;
        }, function (data, status, header, config) {
            return null;
        });
    }

    this.list = function () {
        return this.getContacts();
    }
});

那么最重要的是你应该从list方法(和getContacts)返回promise对象.

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