[jboss-user] [Beginners Corner] - Simple SessionBean --- ClassCastException
Hi!
I am using the JBossIDE 1.5.1 and JBossAS 4.04.
I have coded a simple SessionBean and a Servlet. Please take a look at the code below.
The deployment of the ejb.jar seems to be ok: [ProxyFactory] Bound EJB Home
'Hello' to jndi 'ejb/Hello'
When i am accessing the servlet i am getting an java.lang.ClassCastException in the
servlet at line marked with ">>>>>>>".
I have spent 4 hour and can not find a mistake.
Please take a look at my code an tell me what is wrong.
Thanks
Bronks
package testProjekt;
|
| import java.rmi.RemoteException;
|
| import javax.ejb.EJBException;
| import javax.ejb.SessionBean;
| import javax.ejb.SessionContext;
|
| import javax.ejb.CreateException;
|
| /**
| * @ejb.bean name="Hello"
| * display-name="Name for Hello"
| * description="Description for Hello"
| * jndi-name="ejb/Hello"
| * type="Stateless"
| * view-type="remote"
| */
| public class HelloBean implements SessionBean {
|
| public HelloBean() {
| super();
| // TODO Auto-generated constructor stub
| }
|
| public void setSessionContext(SessionContext ctx)
| throws EJBException,
| RemoteException {
| // TODO Auto-generated method stub
|
| }
|
| public void ejbRemove() throws EJBException, RemoteException {
| // TODO Auto-generated method stub
|
| }
|
| public void ejbActivate() throws EJBException, RemoteException {
| // TODO Auto-generated method stub
|
| }
|
| public void ejbPassivate() throws EJBException, RemoteException {
| // TODO Auto-generated method stub
|
| }
|
| /**
| * Default create method
| *
| * @throws CreateException
| * @ejb.create-method
| */
| public void ejbCreate() throws CreateException {
| // TODO Auto-generated method stub
| }
|
| /**
| * Business method
| * @ejb.interface-method view-type="remote"
| * @generated
| */
| public String hello() {
| return new String("Hello ...!");
| }
| }
|
| package web;
|
| import java.io.IOException;
| import java.io.PrintWriter;
|
| import javax.naming.InitialContext;
| import javax.servlet.ServletConfig;
| import javax.servlet.ServletException;
| import javax.servlet.http.HttpServlet;
| import javax.servlet.http.HttpServletRequest;
| import javax.servlet.http.HttpServletResponse;
|
| import testProjekt.*;
|
|
| /**
| * @web.servlet
| * name="testservlet"
| * display-name="Test Servlet"
| * description="Servlet for testing"
| *
| * @web.servlet-mapping
| * url-pattern="/testservlet"
| *
| */
|
| public class TestServlet extends HttpServlet implements
| javax.servlet.Servlet{
|
|
|
| public TestServlet() {
| super();
| // TODO Auto-generated constructor stub
| }
|
| public void init(ServletConfig config) throws ServletException {
| super.init(config);
|
| }
|
| protected void doGet(HttpServletRequest req, HttpServletResponse resp)
| throws ServletException,
| IOException {
|
| PrintWriter out = resp.getWriter();
| out.println("Executing the servlet");
|
| try {
| InitialContext context = new InitialContext(System.getProperties());
| >>>>>>> HelloHome home = (HelloHome)
context.lookup(HelloHome.JNDI_NAME);
|
| Hello bean = home.create();
| String testtext = bean.hello();
| out.println(testtext);
| }catch(Exception e){e.printStackTrace();}
| }
| }
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3966019#...
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...