Java tutorial
/* * JBoss, Home of Professional Open Source * Copyright 2008-11, Red Hat Middleware LLC, and others contributors as indicated * by the @authors tag. All rights reserved. * See the copyright.txt in the distribution for a * full listing of individual contributors. * This copyrighted material is made available to anyone wishing to use, * modify, copy, or redistribute it subject to the terms and conditions * of the GNU Lesser General Public License, v. 2.1. * This program is distributed in the hope that it will be useful, but WITHOUT A * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. * You should have received a copy of the GNU Lesser General Public License, * v.2.1 along with this distribution; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, * MA 02110-1301, USA. */ package org.overlord.gadgets.web.client.util; import com.allen_sauer.gwt.log.client.Log; import com.google.gwt.http.client.*; /** * @author: Jeff Yu * @date: 31/03/12 */ public class RestfulInvoker { public static abstract class Response implements RequestCallback { //Global error handler public void onError(Request request, Throwable throwable) { Log.error(throwable.toString()); } } public static void invoke(RequestBuilder.Method method, String url, String data, Response callback) { RequestBuilder builder = new RequestBuilder(method, url); builder.setHeader("content-type", "application/json"); try { builder.sendRequest(data, callback); } catch (RequestException e) { Log.error("Error on invoking the service at [" + url + "], detailed info: " + e); } } }