| /* |
| * Copyright (c) 2002, 2020 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0, which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * This Source Code may also be made available under the following Secondary |
| * Licenses when the conditions for such availability set forth in the |
| * Eclipse Public License v. 2.0 are satisfied: GNU General Public License, |
| * version 2 with the GNU Classpath Exception, which is available at |
| * https://www.gnu.org/software/classpath/license.html. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 |
| */ |
| |
| package com.sun.s1asdev.jms.msgdest.jmsweb; |
| |
| import java.io.*; |
| import java.rmi.RemoteException; |
| import jakarta.servlet.*; |
| import jakarta.servlet.http.*; |
| import javax.naming.*; |
| import java.sql.*; |
| import javax.sql.*; |
| import jakarta.jms.*; |
| import jakarta.transaction.*; |
| |
| public class JmsServlet extends HttpServlet { |
| |
| private Queue myQueue; |
| private QueueConnectionFactory qcFactory; |
| |
| public void init( ServletConfig config) throws ServletException { |
| |
| super.init(config); |
| System.out.println("In jmsservlet... init()"); |
| } |
| |
| public void service ( HttpServletRequest req , HttpServletResponse resp ) throws ServletException, IOException { |
| |
| resp.setContentType("text/html"); |
| PrintWriter out = resp.getWriter(); |
| |
| try { |
| |
| InitialContext context = new InitialContext(); |
| |
| UserTransaction userTx = (UserTransaction) |
| context.lookup("java:comp/UserTransaction"); |
| |
| qcFactory = (QueueConnectionFactory) context.lookup("java:comp/env/jms/MyQueueConnectionFactory"); |
| myQueue = (Queue) context.lookup("java:comp/env/jms/MyQueue"); |
| |
| userTx.begin(); |
| |
| sendMessage("this is the jms servlet test"); |
| |
| userTx.commit(); |
| |
| userTx.begin(); |
| |
| recvMessage(); |
| |
| userTx.commit(); |
| |
| out.println("<HTML> <HEAD> <TITLE> JMS Servlet Output </TITLE> </HEAD> <BODY BGCOLOR=white>"); |
| out.println("<CENTER> <FONT size=+1 COLOR=blue>DatabaseServelt :: All information I can give </FONT> </CENTER> <p> " ); |
| out.println("<FONT size=+1 color=red> Context Path : </FONT> " + req.getContextPath() + "<br>" ); |
| out.println("<FONT size=+1 color=red> Servlet Path : </FONT> " + req.getServletPath() + "<br>" ); |
| out.println("<FONT size=+1 color=red> Path Info : </FONT> " + req.getPathInfo() + "<br>" ); |
| out.println("</BODY> </HTML> "); |
| |
| }catch (Exception ex) { |
| ex.printStackTrace(); |
| System.out.println("jmsservlet test failed"); |
| throw new ServletException(ex); |
| } |
| } |
| |
| /** |
| * Send a message. |
| */ |
| public String sendMessage(String msg) throws JMSException { |
| QueueConnection connection = null; |
| try { |
| connection = qcFactory.createQueueConnection(); |
| QueueSession session = connection.createQueueSession |
| (false, Session.AUTO_ACKNOWLEDGE); |
| |
| QueueSender sender = session.createSender(myQueue); |
| |
| // Send a message. |
| TextMessage message = session.createTextMessage(); |
| message.setText(msg); |
| sender.send(message); |
| |
| session.close(); |
| |
| } finally { |
| try { |
| if( connection != null ) { |
| connection.close(); |
| } |
| } catch(Exception e) {} |
| } |
| return msg; |
| } |
| |
| private void recvMessage() throws JMSException { |
| QueueConnection connection = null; |
| try { |
| connection = qcFactory.createQueueConnection(); |
| QueueSession session = connection.createQueueSession |
| (false, Session.AUTO_ACKNOWLEDGE); |
| |
| connection.start(); |
| |
| // Create a message consumer |
| QueueReceiver receiver = session.createReceiver(myQueue); |
| System.out.println("Waiting for message on " + myQueue); |
| Message message = receiver.receive(); |
| System.out.println("Received message " + message); |
| } finally { |
| try { |
| if( connection != null ) { |
| connection.close(); |
| } |
| } catch(Exception e) {} |
| } |
| } |
| |
| public void destroy() { |
| System.out.println("in jmsservlet destroy"); |
| } |
| |
| } |
