Hi! I am Basudev. I am trying to run a simple enterprise application. My application's name is 'NewsApp' and I have used jboss-5.0.0.Beta4 , jdk1.6.0 and Netbean IDE 6.1.When I run my application then server throw the requested resource (/NewsApp-war/ListNews) is not available.
Here is my code 1.ListNews.java package web; import ejb.NewsEntity; import ejb.NewsEntityFacadeLocal; import java.io.*; //import java.net.*; import java.util.Iterator; import java.util.List; import javax.ejb.EJB; import javax.servlet.*; import javax.servlet.http.*; public class ListNews extends HttpServlet { @EJB private NewsEntityFacadeLocal newsEntityFacade; protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); try { out.println(""); out.println(""); out.println("Servlet ListNews"); out.println(""); out.println(""); out.println("<h1>Servlet ListNews at " + request.getContextPath () + "</h1>"); //newsEntityFacade = (NewsEntityFacadeLocal) lookupNewsEntityFacade(); List news = newsEntityFacade.findAll(); for (Iterator it = news.iterator(); it.hasNext();) { NewsEntity elem = (NewsEntity) it.next(); out.println(" "+elem.getTitle()+" "); out.println(elem.getBody()+" "); } out.println("Add new message"); out.println(""); out.println(""); } finally { out.close(); } } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override public String getServletInfo() { return "Short description"; } /*private ejb.NewsEntityFacadeLocal lookupNewsEntityFacade() { try { javax.naming.Context c = new javax.naming.InitialContext(); return (ejb.NewsEntityFacadeLocal) c.lookup("NewsApp/NewsEntityFacade/local"); } catch(javax.naming.NamingException ne) { java.util.logging.Logger.getLogger(getClass(). getName()).log(java.util.logging.Level.SEVERE,"exception caught" ,ne); throw new RuntimeException(ne); } }*/ // </editor-fold> } postMessage.java package web; import ejb.NewsEntity; import java.io.*; //import java.net.*; import java.util.Queue; import javax.jms.Destination; import javax.jms.JMSException; //import javax.jms.MessageProducer; import javax.jms.ObjectMessage; import javax.jms.QueueConnection; import javax.jms.QueueConnectionFactory; import javax.jms.QueueSession; import javax.naming.InitialContext; import javax.naming.NamingException; import javax.servlet.*; import javax.servlet.http.*; import javax.jms.MessageProducer; public class PostMessage extends HttpServlet { /** * Processes requests for both HTTP GET and POST methods. * @param request servlet request * @param response servlet response */ protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8"); String title=request.getParameter("title"); String body=request.getParameter("body"); if ((title!=null) && (body!=null)) { Queue queue = null; QueueConnection connection = null; QueueSession session = null; MessageProducer messageProducer = null; try { InitialContext ctx = new InitialContext(); queue = (Queue) ctx.lookup("queue/mdb"); QueueConnectionFactory factory = (QueueConnectionFactory) ctx.lookup("ConnectionFactory"); connection = factory.createQueueConnection(); session = connection.createQueueSession(false, QueueSession.AUTO_ACKNOWLEDGE); messageProducer = session.createProducer((Destination) queue); ObjectMessage message = session.createObjectMessage(); // here we create a NewsEntity, that will be sent in JMS message NewsEntity e = new NewsEntity(); e.setTitle(title); e.setBody(body); message.setObject(e); messageProducer.send(message); messageProducer.close(); connection.close(); response.sendRedirect("ListNews"); } catch (JMSException ex) { ex.printStackTrace(); } catch (NamingException ex) { ex.printStackTrace(); } } PrintWriter out = response.getWriter(); try { out.println(""); out.println(""); out.println("Servlet PostMessage"); out.println(""); out.println(""); out.println("<h1>Servlet PostMessage at " + request.getContextPath () + "</h1>"); out.println(""); out.println("Title: "); out.println("Message: "); out.println(""); out.println(""); out.println(""); out.println(""); } finally { out.close(); } } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { processRequest(request, response); } @Override public String getServletInfo() { return "Short description"; } // </editor-fold> } NewsEntity.java package ejb; import java.io.Serializable; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.GenerationType; import javax.persistence.Id; @Entity public class NewsEntity implements Serializable { private static final long serialVersionUID = 1L; private Long id; private String title; private String body; public void setId(Long id) { this.id = id; } @Id @GeneratedValue(strategy = GenerationType.AUTO) public Long getId() { return id; } @Override public int hashCode() { int hash = 0; hash += (id != null ? id.hashCode() : 0); return hash; } @Override public boolean equals(Object object) { // TODO: Warning - this method won't work in the case the id fields are not set if (!(object instanceof NewsEntity)) { return false; } NewsEntity other = (NewsEntity) object; if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) { return false; } return true; } @Override public String toString() { return "ejb.NewsEntity[id=" + id + "]"; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public String getBody() { return body; } public void setBody(String body) { this.body = body; } } NewMessageBean.java package ejb; import javax.annotation.Resource; import javax.ejb.ActivationConfigProperty; import javax.ejb.MessageDriven; import javax.ejb.MessageDrivenContext; import javax.jms.JMSException; import javax.jms.Message; import javax.jms.MessageListener; import javax.jms.ObjectMessage; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; @MessageDriven(mappedName = "jms/NewMessage", activationConfig = { @ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge"), @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"), @ActivationConfigProperty(propertyName = "destination", propertyValue = "queue/mdb") }) public class NewMessageBean implements MessageListener { @Resource private MessageDrivenContext mdc; @PersistenceContext private EntityManager em; public NewMessageBean() { } public void onMessage(Message message) { ObjectMessage msg = null; try { if (message instanceof ObjectMessage) { msg = (ObjectMessage) message; NewsEntity e = (NewsEntity) msg.getObject(); save(e); } } catch (JMSException e) { e.printStackTrace(); mdc.setRollbackOnly(); } catch (Throwable te) { te.printStackTrace(); } } public void save(Object object) { em.persist(object); } } NewsEntityFacade.java package ejb; import java.util.List; import javax.ejb.Stateless; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; /** * * @author Administrator */ @Stateless public class NewsEntityFacade implements NewsEntityFacadeLocal { @PersistenceContext private EntityManager em; public void create(NewsEntity newsEntity) { em.persist(newsEntity); } public void edit(NewsEntity newsEntity) { em.merge(newsEntity); } public void remove(NewsEntity newsEntity) { em.remove(em.merge(newsEntity)); } public NewsEntity find(Object id) { return em.find(ejb.NewsEntity.class, id); } public List findAll() { return em.createQuery("select object(o) from NewsEntity as o").getResultList(); } } please Sir I need help.Where is my fault?How can solve it? 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