Can not get response back from Java REST Service using ngResource and $resource

[Jayanta Pramanik]

I'm trying fetch data by calling Java REST service from AngularJS web portal. I'm using ngResource. 

Call From Angular Service :

    app.factory('UserFactory', function ($resource) {

        return $resource('http://localhost:8080/demoApp/service/users', {}, {

            show: { method: 'GET', isArray: true },

            update: { method: 'PUT', params: {id: '@id'} },

            delete: { method: 'DELETE', params: {id: '@id'} }

        })

    });

Angular Controller :

function userListController($scope, UserFactory){    

    $scope.showUser = function () {

        $scope.fetchedData = [];        

        $scope.users = UserFactory.show();

        $scope.fetchedData.push($scope.users);        

    };

It is calling Java Service perfectly (As my debugger shows) but NO OUTPUT returned at Angular side. 

Even I can get the result if I put the URL directly at the browser :

   

    URL :   http://localhost:8080/demoApp/service/users

    RESULT :   [{"id":1,"firstName":"Jayanta","lastName":"Pramanik"}]

But in Angular-JS controller I can not get any result !!

For your understanding -

Here is my Java REST Service method definition -

     

       @GET

    @Produces(MediaType.APPLICATION_JSON)

    public List<User> getAllUsersInJSON() {

 /* ------ Some Hard coded values are set into an ArrayList ------*/

            List<User> userList = new ArrayList<User>();

   User usr1 = new User();

   usr1.setId(1);

   usr1.setFirstName("Jayanta");

   usr1.setLastName("Pramanik");

            userList.add(usr1);

            return userList;

    } 

Any idea please !

Thanks in advance -

Jayanta P.

Kolkata,  India. 

[Sander Elias]

Hi Jayanta,

Sounds like a CORS issue to me. Have a look at the developer’s console, and see what the error is in there!
probably there is something like this: Origin http://localhost:8080/demoApp/service/users is not allowed by Access-Control-Allow-Origin in there.

If that is the case, you need to enable CORS on your server. not an AngularJS issue.

Regards
Sander
​

​

[Jayanta Pramanik]

Thanks for the answer. Yes I did that and now it is working.

Regards.

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