问ng-提交在angularjs中不起作用

EN

<div class="modal" tabindex="-1" role="dialog" ng-controller="LocationController">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" ng-click="$hide()">&times;</button>
        <h4 class="modal-title">
          Add a Location
        </h4>
      </div>
      <div class="modal-body">
        <form class="form-horizontal" role="form" ng-submit="createLocation()">
          <div class="form-group">
            <label class="col-sm-2 control-label">Name</label>
            <div class="col-sm-10">
              <input type="text" class="form-control" placeholder="Warehouse A, Row 15, Shelf BC1, etc" ng-model="name">
            </div>
          </div>

          <div class="form-group">
            <label class="col-sm-2 control-label">Type</label>
            <div class="col-sm-10">
              <input type="text" class="form-control" placeholder="warehouse, row, shelf, etc" ng-model="type">
            </div>
          </div>

        </form>
      </div>
      <div class="modal-footer">
        <button type="submit" class="btn btn-primary">Save</button>
        <button type="button" class="btn btn-danger" ng-click="$hide()">Cancel</button>
      </div>
    </div>
  </div>
</div>

angular.module('mean').controller('LocationController', ['$scope', '$location', '$rootScope', 'LocationService', '$modal', '$routeParams', function ($scope, $location, $rootScope, LocationService, $modal, $routeParams) {

  $scope.createLocation = function() {
alert('afds');
    LocationService.create(this).then(function(response) {
      console.log(response);
    });
  }

}]);