System.out.println in EJB

Question

Hi I have given System.out.println in my EJB object. But I am not able to see the output in my console. But when I give printStackTrace in my JSP(from where I can EJB)....it is displaying the exception....
So my question is Can we give System.out... in EJB?. Should we set any property to see the output of System.out...in the console?.

Answer 1

Here is my code
From UserManager I call the EJB
public boolean validateSignOn(String strUserName,String strPassword) throws ProdSchedException{
try{
UserMgrHome home = (UserMgrHome)getEJBHome("UserMgr",UserMgrHome.class);
UserMgr userMgr = home.create();
return userMgr.validateSignOn(strUserName,strPassword);
catch(RemoteException rex){
ServerLog.log(rex.getMessage(),ServerLog.ERROR);
throw new ProdSchedException(rex,"Server Failed");
catch(CreateException cex){
ServerLog.log(cex.getMessage(),ServerLog.ERROR);
throw new ProdSchedException(cex,"Create Exception");
This is my EJB code
import javax.ejb.*;
import java.rmi.RemoteException;
import java.util.*;
import javax.xml.parsers.*;
import org.xml.sax.*;
import org.w3c.dom.*;
import java.io.*;
* User Manager Session Bean
public class UserMgrEJB implements SessionBean {
SessionContext cntx;
public boolean validateSignOn(String strUserName,String strPassword) throws ProdSchedException{     
UserDAO dao = new UserDAO();
     System.out.println("Inside EJB");
boolean bValidUser = dao.validateUser(strUserName,strPassword);
if(!bValidUser){
throw new ProdSchedException("Invalid User");
return bValidUser;
//Bean methods
public void ejbCreate(){
     System.out.println("Inside EJB Create");
public void ejbRemove(){
public void ejbActivate(){
     System.out.println("Inside EJB Activate");
public void ejbPassivate(){
public void setSessionContext(SessionContext cntx){
this.cntx = cntx;
This is mu UserDAO code
public class UserDAO extends DAO{
public boolean validateUser(String userName,String password) throws ProdSchedException{
Connection conn = null;
PreparedStatement stmt = null;
ResultSet result = null;
     System.out.println("Inside validateUser in DAO");
try{
          boolean bIsValidUser = true;
     String selectStatement = "SELECT SYSDATE from DUAL";
     conn = getConnection();
stmt = conn.prepareStatement(selectStatement);
result = stmt.executeQuery();
while(result.next()){
bIsValidUser = true;
return bIsValidUser;
catch(SQLException sqex){
ServerLog.log(sqex.getMessage(),ServerLog.ERROR);
throw new ProdSchedException(sqex,sqex.getMessage());
     finally{
try{
close(conn,stmt,result);
catch(ProdSchedException slex){
               ServerLog.log(slex.getMessage(),ServerLog.ERROR);
throw slex;
} // end class
And the error I get in the console is this(since I have given printStackTrace in my JSP)
ProdSchedException: SQL Error
at UserDAO.validateUser(UserDAO.java:
44)
at UserMgrEJB.validateSignOn(
UserMgrEJB.java:26)
at UserMgrEJB_p3hctp_EOImpl.v
alidateSignOn(UserMgrEJB_p3hctp_EOImpl.java:46)
at UserManager.validateSignOn(User
Manager.java:20)
at jsp_servlet._public.__login._jspService(__login.java:123)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run
(ServletStubImpl.java:1094)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:437)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:319)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationActio
n.run(WebAppServletContext.java:5626)
at weblogic.security.service.SecurityServiceManager.runAs(SecurityServic
eManager.java:685)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSe
rvletContext.java:3213)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm
pl.java:2555)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:251)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:219)