问题
Just a shot in the dark, but do I need a local interface to call a remote stateless EJB?
when I try call the bean remotely through Netbeans:
Netbeans doesn't allow a remote call, or any call, on this bean. Why not?
Trying to do it manually, as below:
What is the jndi global remote name for the Remote EJB which is deployed on glassfish?
INFO: visiting unvisited references
INFO: visiting unvisited references
INFO: EJB5181:Portable JNDI names for EJB MyRemoteSessionClass: [java:global/RemoteSalutation-ejb/MyRemoteSessionClass!net.bounceme.dur.glassfish.MyRemoteSession, java:global/RemoteSalutation-ejb/MyRemoteSessionClass]
INFO: RemoteSalutation-ejb was successfully deployed in 941 milliseconds.
If possible, I would rather specify the class in the properties file rather than hard-coded. In any event, different variations result in a lookup failure. Here's the stack-trace:
run-deploy:
Copying 1 file to /home/thufir/NetBeansProjects/RemoteLookup/dist
Copying 2 files to /home/thufir/NetBeansProjects/RemoteLookup/dist/RemoteLookupClient
Warning: /home/thufir/NetBeansProjects/RemoteLookup/dist/gfdeploy/RemoteLookup does not exist.
Sep 13, 2014 1:35:41 AM net.bounceme.dur.remote.RemoteLookup run
INFO: java.naming.factory.initial com.sun.enterprise.naming.impl.SerialInitContextFactory
Sep 13, 2014 1:35:41 AM net.bounceme.dur.remote.RemoteLookup run
INFO: java.naming.factory.url.pkgs com.sun.enterprise.naming
Sep 13, 2014 1:35:41 AM net.bounceme.dur.remote.RemoteLookup run
INFO: java.naming.factory.state com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl
Sep 13, 2014 1:35:46 AM net.bounceme.dur.remote.RemoteLookup main
SEVERE: Lookup failed for ' java:comp/env//RemoteSalutation-ejb/MyRemoteSessionClass!net/bounceme/dur/glassfish/MyRemoteSession' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, remote=net.bounceme.ix.Foo, org.omg.CORBA.ORBInitialHost=localhost, java.naming.security.principal=user, org.omg.CORBA.ORBInitialPort=3700, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.provider.url=server.local:1199, java.naming.factory.url.pkgs=com.sun.enterprise.naming, java.naming.security.credentials=password}
javax.naming.NamingException: Lookup failed for ' java:comp/env//RemoteSalutation-ejb/MyRemoteSessionClass!net/bounceme/dur/glassfish/MyRemoteSession' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, remote=net.bounceme.ix.Foo, org.omg.CORBA.ORBInitialHost=localhost, java.naming.security.principal=user, org.omg.CORBA.ORBInitialPort=3700, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.provider.url=server.local:1199, java.naming.factory.url.pkgs=com.sun.enterprise.naming, java.naming.security.credentials=password} [Root exception is javax.naming.NameNotFoundException: java:comp]
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:491)
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:438)
at javax.naming.InitialContext.lookup(InitialContext.java:411)
at net.bounceme.dur.remote.RemoteLookup.run(RemoteLookup.java:34)
at net.bounceme.dur.remote.RemoteLookup.main(RemoteLookup.java:18)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.glassfish.appclient.client.acc.AppClientContainer.launch(AppClientContainer.java:446)
at org.glassfish.appclient.client.AppClientFacade.main(AppClientFacade.java:166)
Caused by: javax.naming.NameNotFoundException: java:comp
at com.sun.enterprise.naming.impl.TransientContext.resolveContext(TransientContext.java:299)
at com.sun.enterprise.naming.impl.TransientContext.lookup(TransientContext.java:207)
at com.sun.enterprise.naming.impl.SerialContextProviderImpl.lookup(SerialContextProviderImpl.java:66)
at com.sun.enterprise.naming.impl.RemoteSerialContextProviderImpl.lookup(RemoteSerialContextProviderImpl.java:109)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie.dispatchToMethod(ReflectiveTie.java:143)
at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:173)
at com.sun.corba.ee.impl.protocol.ServerRequestDispatcherImpl.dispatchToServant(ServerRequestDispatcherImpl.java:528)
at com.sun.corba.ee.impl.protocol.ServerRequestDispatcherImpl.dispatch(ServerRequestDispatcherImpl.java:199)
at com.sun.corba.ee.impl.protocol.MessageMediatorImpl.handleRequestRequest(MessageMediatorImpl.java:1549)
at com.sun.corba.ee.impl.protocol.MessageMediatorImpl.handleRequest(MessageMediatorImpl.java:1425)
at com.sun.corba.ee.impl.protocol.MessageMediatorImpl.handleInput(MessageMediatorImpl.java:930)
at com.sun.corba.ee.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:213)
at com.sun.corba.ee.impl.protocol.MessageMediatorImpl.handleRequest(MessageMediatorImpl.java:694)
at com.sun.corba.ee.impl.protocol.MessageMediatorImpl.dispatch(MessageMediatorImpl.java:496)
at com.sun.corba.ee.impl.protocol.MessageMediatorImpl.doWork(MessageMediatorImpl.java:2222)
at com.sun.corba.ee.impl.threadpool.ThreadPoolImpl$WorkerThread.performWork(ThreadPoolImpl.java:497)
at com.sun.corba.ee.impl.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:540)
run:
BUILD SUCCESSFUL (total time: 17 seconds)
client code:
package net.bounceme.dur.remote;
import java.util.Enumeration;
import java.util.Properties;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
public class RemoteLookup {
private static final Logger log = Logger.getLogger(RemoteLookup.class.getName());
private final MyProps p = new MyProps();
public static void main(String... args) {
try {
new RemoteLookup().run();
} catch (NamingException ex) {
Logger.getLogger(RemoteLookup.class.getName()).log(Level.SEVERE, ex.getExplanation(), ex);
}
}
private void run() throws NamingException {
Properties jndi = p.getJNDI();
Enumeration e = jndi.propertyNames();
while (e.hasMoreElements()) {
String key = (String) e.nextElement();
String val = jndi.getProperty(key);
log.info(key + "\t" + val);
}
Context ic = new InitialContext();
// Object o = ic.lookup(" java:comp/env/RemoteSalutation-ejb/MyRemoteSessionClass");
Object o = ic.lookup(" java:comp/env//RemoteSalutation-ejb/MyRemoteSessionClass!net/bounceme/dur/glassfish/MyRemoteSession");
}
}
the remote EJB:
package net.bounceme.dur.glassfish;
import javax.ejb.Stateless;
//@LocalBean
@Stateless(mappedName = "salutationBean")
public class MyRemoteSessionClass implements MyRemoteSession {
@Override
public String SayHello() {
return "hello from glassfish..";
}
@Override
public String SayBye() {
return "goodbye..";
}
}
note that the interface is remote, ie: it's literally a Java class library. Correct? This makes the EJB remote.
referencing:
https://netbeans.org/kb/docs/javaee/entappclient.html
although I changed the names a bit..otherwise should be exactly as the tutorial.
回答1:
Try Object o = ic.lookup("salutationBean");
Note that mappedName specifies the name to use in JNDI for a remote access.
来源：https://stackoverflow.com/questions/25821480/selected-bean-is-not-in-the-same-module-or-enterprise-application