calling a web service with multiple data using angular js

I'm newer in angular js and I would like to call the web-service (implemented with Spring REST ) which use multiple data in his request body but i didn't now how the parsing can be done. Can someone help me please ?

This is my Spring method in controller:

@RequestMapping(value = "/addpost", method = RequestMethod.POST, headers = "Accept=application/json")
    public @ResponseBody String addpost(@RequestBody PostDto post, @RequestBody UserDto user) {
        postservice.addPost(post, user);
        return "post inserted";

    }

This is how i tried to call this method

$scope.addPost=function(x,y){

        $http.post('http://localhost:8080/wall/addpost',[x,y]).
          success(function(data, status, headers, config) {
              $scope.persons.push(data);
             $scope.user="";
             $scope.post="";
          }).
          error(function(data, status, headers, config) {
              alert("erreur");

          })