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How do you call a stateless session bean in a servlet code?
My code is as follows:
Context jndiContext = new InitialContext();
Object ref = jndiContext.lookup("InsertDataBean");
InsertDataRemote idr = (InsertDataRemote)
PortableRemoteObject.narrow(ref, InsertDataRemote.class);
but it does not find the bean.
I use glassfish.
Thanks for any help.
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Your JNDI connection parameters don't seem to be complete.
You need to specify PROVIDER_URL & INITIAL_CONTEXT_FACTORY
and InsertDataBeaan's jndi name should be like ejb\InsertDataBean as EJB's are created under ejb node in JNDI Tree.
Please check these
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I tried that and now my code looks like
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String username = request.getParameter("username");
String email = request.getParameter("email");
String password = request.getParameter("password");
try {
Context jndiContext = getInitialContext();
Object ref = jndiContext.lookup("java:comp/env/ejb/InsertDataBean");
InsertDataRemote idr = (InsertDataRemote)
PortableRemoteObject.narrow(ref, InsertDataRemote.class);
idr.insertUser(username, email, password);
} catch (NamingException ex) {
Logger.getLogger(Registrator.class.getName()).log(Level.SEVERE, null, ex);
out.print(ex.getMessage());
}
}
public static Context getInitialContext() throws NamingException {
Properties properties = new Properties();
properties.put(javax.naming.Context.PROVIDER_URL, "iiop:///");
properties.put(javax.naming.Context.INITIAL_CONTEXT_FACTORY,
"com.sun.enterprise.naming.SerialInitContextFactory");
return new InitialContext(properties);
}
I get error message:
No object bound to name java:comp/env/ejb/InsertDataBean
I also tried different paths int the lookup method only to get different error message.
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If you are using EJB 3.0 specs, then use annotations, then you dont need to do such complex lookups.
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Thank you for reply.
I am not sure whether this approach worked but at least I got different error message :)
javax.ejb.EJBException: nested exception is: java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.RemoteException: null; nested exception is:
Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2.0.1 (Build b09d-fcs (12/06/2007))): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: Table 'nba_live.sequence' doesn't exist
Error Code: 1146
Anyone ever came across such an error?
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I had similar problem, though I was looking for local interface, under Glassfish. Might be of use for you. I found two ways of locating the bean using initial context.
First is adding this class annotation, defining JNDI name of the bean.
@EJB(name = "gatewaysessionbeanref", beanInterface = GatewaySessionLocal.class)
then, in code of that same class, use this name for lookup:
InitialContext ic = new InitialContext();
GatewaySessionLocal bean = (GatewaySessionLocal) ic.lookup("java:comp/env/gatewaysessionbeanref");
Second, using fully qualified name of bean class, as this:
InitialContext ic = new InitialContext();
GatewaySessionLocal bean = (GatewaySessionLocal) ic.lookup("com.mycompany.myproduct.mysubsystem.GatewaySessionBean");
In latter example may be name of local interface class was used, not a bean class, cant tell for sure now.
Both these ways work when bean used in pojo class. When trying to use bean from servlet, simple @EJB field annotation works.
My servlet and bean located in the same ear. Hope this would help somehow.
