AngularJS - rest service

Ciao a Tutti,

Questo è il mio codice rest:

@POST
	@Path("/createSkill")
	@Produces(MediaType.APPLICATION_JSON)
	public Response createSkill() {
		Skill skill = new Skill();
		SkillJdbcImpl skillJdbcImpl = new SkillJdbcImpl();
		
		skillJdbcImpl.creaSkill(skill);
		return Response.ok().entity(skillJdbcImpl).build();
	}

Questo è il mio codice creaSkill in jdbc:

@Override
	public void creaSkill(Skill skill) {
		String queryAddList = "insert into SKILL (id_SKILL, NOME_SKILL, CATEGORIA_SKILL) values(?,?,?)";

		Connection dbConnection = null;
		Statement statement = null;
		PreparedStatement pStatement = null;

		try {
			dbConnection = Database.getConnection();
			statement = dbConnection.createStatement();

			// esegui istruzione query
			pStatement = dbConnection.prepareStatement(queryAddList);

			pStatement.setInt(1, this.rangeMaxId()); // aggiornamento Id automatico
			pStatement.setString(2, skill.getNomeSkill());
			pStatement.setString(3, skill.getCategoriaSkill());
			pStatement.executeUpdate(); // aggiorna la lista --> return Int

		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (dbConnection != null && statement != null && pStatement != null) {
					dbConnection.close();
					statement.close();
					pStatement.close();
				}
			} catch (Exception e2) {
				e2.printStackTrace();
			}
		}

	}

Questo è il codice Angular js:

(function () {
var app = angular.module("myApp");
app.controller("createController", function($scope, $http){
	
	$scope.createSkill = function () {
		$http.post('http://localhost:8900/WebServiceRestFull/createSkill', {"id_skill": $scope.idSkill,"nomeSkill": $scope.idNomeSkill,"categoriaSkill": $scope.idCategoriaSkill}) 
		.success(function(data, status, headers, config) {
			 alert("Skill aggiunto correttamente!"); 
		}).error(function(data, status, headers, config) {
			console.log("error");
		});
	};

});

})();

Questo è html:

	<div  class="col-md-8 text-center " style=" margin: 0 auto;"> 
		<form class="list-group-item list-group-item-primary">
			
			<div class="form-row">
				<div class="form-group col-md-3">
					<label for="formGroupId">Id Skill:</label> 
					<input type="text" class="form-control"  name="skill" ng-model="idSkill" required minlength="1" maxlength="3"  pattern="[0-9]+" >
			</div>
			

				<div class="form-group col-md-3" >
					<label for="formGroupNome">Nome skill:</label> 
					<input type="text" class="form-control"  name="nomeSkill" ng-model="idNomeSkill" required minlength="1" maxlength="10"   pattern="[a-zA-Z ]*">
				</div>

				<div class="form-group col-md-3">
					<label for="formGroupCategoria">Categoria skill:</label>
					<input type="text" class="form-control"  name="categoriaSkill" ng-model="idCategoriaSkill" required  minlength="1" maxlength="10"   pattern="[a-zA-Z ]*">
				</div>
				
				<div class="form-group col-md-3">
					<label for="formGroupCategoria">Crea skill:</label><br>
					 <button type="button" ng-click="createSkill()">crea</button>
				</div>
				
			</div>
			
			<div ng-if="idSkill && idNomeSkill  && idCategoriaSkill" >
				<h4 >Tutti i campi sono corretti!!</h4>
			</div>
		</form>
	</div>

Ma non mi funziona come mai???