problemi sa ejbom

[ afrodom @ 22.04.2009. 15:19 ] @

sta je problem Ovo je stack trace koji dobijam :

Code:

   1. java.lang.NullPointerException
   2.     at boby.Test.doPost(Test.java:19)
   3.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
   4.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
   5.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   6.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   7.     at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
   8.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
   9.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  10.     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
  11.     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
  12.     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
  13.     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
  14.     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
  15.     at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
  16.     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  17.     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
  18.     at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
  19.     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
  20.     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
  21.     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:828)
  22.     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601)
  23.     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
  24.     at java.lang.Thread.run(Thread.java:619)

Stateless bean je povan iz ovo servleta gde dobija error :

Code:

package boby;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import ejbtest.*;
import javax.ejb.*;

public class Test extends HttpServlet{

   @EJB
   private BobyTest bt;

    public void doPost(HttpServletRequest request, HttpServletResponse response)
     throws ServletException, IOException {

        String name = request.getParameter("username");
        String pass = request.getParameter("password");
            String res = bt.getRespond(name,pass);
        HttpSession ses = request.getSession();
        ses.setAttribute("test", res);
        response.sendRedirect("Returned.jsp");

    }

}

Ovo je interface beans-a

Code:

package ejbtest;
import javax.ejb.Remote;
@Remote
public interface BobyTest {

public String getRespond(String name, String pass);
}

i kode od beans-a

Code:

package ejbtest;

import javax.ejb.*;

@Stateless
public class BobyTestBean implements BobyTest{

    public String getRespond(String name, String pass){
        String conclusion = "Your name is : --> "+name+ " <br />+ and you password is : --> "+pass;
        return conclusion;

    }
}

I, sta je problem? Zasto mi nije 'ubrizgan' EJB???? Mislim, bas sam se izcimao i nisam skontao...