Question

这是我的网络服务，我将2个vars从app mobile发送到请求并回复json对象。

var express = require('express');
var app = express();
var port = process.env.PORT || 8080;

var bodyParser = require('body-parser');
app.use(bodyParser.json()); // support json encoded bodies
app.use(bodyParser.urlencoded({ extended: true })); // support encoded bodies

app.post('/coords', function(req, res) {

    var lat         = req.body.lat,
        lon         = req.body.lon;

    res.setHeader('Content-Type', 'application/json');
    res.send(JSON.stringify({"vehicle": [{ latitud: lat, longitud: lon }]}));

});


// start the server
app.listen(port);
console.log('Server start! at http://localhost:' + port);

然后我想在我的angularjs控制器中获得那个json。我不确定是否使用此表格

var app = angular.module('myApp',[]);
app.controller('vehicleCtrl', function($scope, $http) {

    var url = "http://localhos:8080/coords";

    $http.jsonp(url)
        .success(function(data){
            console.log(data.vehicle);
        });

});

Answer 1

我试图创建一个具有类似代码的示例。我为防止XOrigin问题所做的一件事是将index.html文件放在public目录下面，该目录由server.js中的行app.use(express.static('public'));提供。

<强>的index.html：

<!DOCTYPE html>
<html lang="en" ng-app="myApp">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="bower_components/angular/angular.min.js" type="text/javascript"></script>
    <script type="text/javascript">
        var app = angular.module('myApp',[]);
        app.controller('demoCtrl', ['$scope', '$http', function($scope, $http) {
            $scope.restart =function(){
                console.log('Restart');
                var url = 'http://localhost:8080/coords';
                $http.post(url)
                        .success(function(data){
                            console.log(data.vehicle);
                        });
            }
        }]);

    </script>
</head>
<body>
<div  ng-controller='demoCtrl'>
    <h1>Test</h1>
    <p><button ng-click="restart()">Restart</button></p>
</div>
</body>
</html>

<强> server.js：

var express = require('express');
var app = express();
var port = process.env.PORT || 8080;

var bodyParser = require('body-parser');
app.use(bodyParser.json()); // support json encoded bodies
app.use(bodyParser.urlencoded({ extended: true })); // support encoded bodies
app.use(express.static('public'));
app.post('/coords', function(req, res) {

    var lat         = req.body.lat,
        lon         = req.body.lon;

    res.setHeader('Content-Type', 'application/json');
    res.send(JSON.stringify({"vehicle": [{ latitud: "foo", longitud: "bar" }]}));

});


// start the server
app.listen(port);
console.log('Server start! at http://localhost:' + port);

如何从Angularjs中的Web服务获取json数据？

1 个答案: