I am learning about EJB and I would like to get the following code working but so far no success. Here's my EJB project code:
@Stateless
public class CalcBean implements ICalcRemote {
private static final long serialVersionUID = 5571798968598315142L;
@Override
public int add(int a, int b) {
return a + b;
}
}
package com.ejb.test.pckg;
import javax.ejb.Remote;
@Remote
public interface ICalcRemote extends ICalculator {
}
package com.ejb.test.pckg;
import java.io.Serializable;
public interface ICalculator extends Serializable {
public int add(int a, int b);
}
I run glassfish-4.1.1 in Eclipse Neon.
When I deploy the EJB project, I can see the following in the log:
2017-02-24T21:18:09.036-0400|Info: Portable JNDI names for EJB CalcBean: [java:global/EJBDemo/CalcBean, java:global/EJBDemo/CalcBean!com.ejb.test.pckg.ICalcRemote]
2017-02-24T21:18:09.036-0400|Info: Glassfish-specific (Non-portable) JNDI names for EJB CalcBean: [com.ejb.test.pckg.ICalcRemote#com.ejb.test.pckg.ICalcRemote, com.ejb.test.pckg.ICalcRemote]
This is my client code:
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import com.ejb.test.pckg.ICalcRemote;
public class Main {
public static void main(String[] args) {
try {
Properties props = new Properties();
props.setProperty("java.naming.factory.initial", "com.sun.enterprise.naming.SerialInitContextFactory");
props.setProperty("java.naming.factory.url.pkgs", "com.sun.enterprise.naming");
props.setProperty("java.naming.factory.state", "com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl");
//
props.setProperty("org.omg.CORBA.ORBInitialHost", "localhost");
props.setProperty("org.omg.CORBA.ORBInitialPort", "3700");
Context ctx = new InitialContext();
ICalcRemote calc = (ICalcRemote) ctx.lookup("java:global/EJBDemo/CalcBean!com.ejb.test.pckg.ICalcRemote");
System.out.println(calc.add(5, 7));
} catch (Exception e) {
e.printStackTrace();
}
}
/*
* (non-Java-doc)
*
* @see java.lang.Object#Object()
*/
public Main() {
super();
}
}
But I am having no luck. Any suggestions how to get this working?
Thank you!
EDIT:
This is my main (client) which includes info from the EJBDemo deployment log:
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import com.ejb.test.pckg.ICalcRemote;
public class Main {
public static void main(String[] args) {
try {
Properties props = new Properties();
props.setProperty("java.naming.factory.initial", "com.sun.enterprise.naming.SerialInitContextFactory");
props.setProperty("java.naming.factory.url.pkgs", "com.sun.enterprise.naming");
props.setProperty("java.naming.factory.state", "com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl");
//
// props.setProperty("org.omg.CORBA.ORBInitialHost", "localhost");
// props.setProperty("org.omg.CORBA.ORBInitialPort", "3700");
/*
* THIS IS from Glassfish log of EJBDemo deployment
*
* 2017-02-25T20:41:47.100-0400|Info: Portable JNDI names for EJB CalcBean: [java:global/EJBDemo/CalcBean,
* java:global/EJBDemo/CalcBean!com.ejb.test.pckg.ICalcRemote] 2017-02-25T20:41:47.100-0400|Info: Glassfish-specific (Non-portable) JNDI names for EJB CalcBean:
* [com.ejb.test.pckg.ICalcRemote#com.ejb.test.pckg.ICalcRemote, com.ejb.test.pckg.ICalcRemote]
*
*
*/
Context ctx = new InitialContext();
ICalcRemote calc = (ICalcRemote) ctx.lookup("java:global/EJBDemo/CalcBean!com.ejb.test.pckg.ICalcRemote");
System.out.println(calc.add(5, 7));
} catch (Exception e) {
e.printStackTrace();
}
}
/*
* (non-Java-doc)
*
* @see java.lang.Object#Object()
*/
public Main() {
super();
}
}
I finally got things working! Since it's been quite a process despite reading many posts related to this issue. Here are the details of my configuration. Hopefully, this will be useful to somebody.
OS: win 10 IDE: Eclipse Neon App server: Glassfish 4.1.1 JDK: 1.8.0_111
I need to mention this article which eventually led me to the answer:
http://mavicode.com/2014/08/a-standalone-client-for-ejbs-running-on-glassfish-4/
So, thanks and kudos.
First, create the EJB Demo project:
package com.ejb.test.pckg;
import java.io.Serializable;
public interface ICalculator extends Serializable {
public int add(int a, int b);
}
package com.ejb.test.pckg;
import javax.ejb.Remote;
@Remote
public interface ICalcRemote extends ICalculator {
}
package com.ejb.test.pckg;
import javax.ejb.Stateless;
// @Stateless(mappedName = "chester")
@Stateless
public class CalcBean implements ICalcRemote {
private static final long serialVersionUID = 5571798968598315142L;
@Override
public int add(int a, int b) {
return a + b;
}
}
Deploy it on the server (run as > run on the server) > check the log to see the JDNI info. It should look like something like this:
2017-02-25T20:41:47.100-0400|Info: Portable JNDI names for EJB CalcBean: [java:global/EJBDemo/CalcBean, java:global/EJBDemo/CalcBean!com.ejb.test.pckg.ICalcRemote] 2017-02-25T20:41:47.100-0400|Info: Glassfish-specific (Non-portable) JNDI names for EJB CalcBean: [com.ejb.test.pckg.ICalcRemote#com.ejb.test.pckg.ICalcRemote, com.ejb.test.pckg.ICalcRemote]
After that, create Application Client Project. Main.java will be created automatically. This is my main:
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import com.ejb.test.pckg.ICalcRemote;
public class Main {
public static void main(String[] args) {
try {
Properties props = new Properties();
props.setProperty("java.naming.factory.initial", "com.sun.enterprise.naming.SerialInitContextFactory");
props.setProperty("java.naming.factory.url.pkgs", "com.sun.enterprise.naming");
props.setProperty("java.naming.factory.state", "com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl");
Context ctx = new InitialContext();
ICalcRemote calc = (ICalcRemote) ctx.lookup("java:global/EJBDemo/CalcBean!com.ejb.test.pckg.ICalcRemote");
System.out.println(calc.add(5, 43));
} catch (Exception e) {
e.printStackTrace();
}
}
/*
* (non-Java-doc)
*
* @see java.lang.Object#Object()
*/
public Main() {
super();
}
}
At this point, my project looks like this:
And here comes the key part. Add a new external library from the Glassfish lib directory. !!! IMPORTANT: Don't just copy and paste to the path! The .jar apparently uses/references other classes in other GF jars. So just add it to the build path as an external jar instead of copy/paste.
You should be set now. Run the Main as a Java application.
This is what I get.