Remote EJB

[kalyanbikkani]

Hi all,

I want connect remote ejb which is deployed in jboss4.0.5 from swing application.

It works fine in both(jboss+swing app) are in same system and also works fine both r in external ips like (123.*.*.*) but not working external ips like 123*.*.* & 61.*.*.*.

my remote ejb connection in swing app is

Properties p = new Properties();

 p.put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.HttpNamingContextFactory");
 p.put(Context.PROVIDER_URL, "http://"+remoteSystemIP+":9999/invoker/JNDIFactory");

i got an exception like this

javax.naming.CommunicationException: Operation failed [Root exception is java.rm
i.ServerException: IOE; nested exception is:
 java.net.UnknownHostException: chambers]
 at org.jboss.naming.interceptors.ExceptionInterceptor.invoke(ExceptionIn
terceptor.java:65)
 at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:7
0)
 at org.jboss.proxy.ClientMethodInterceptor.invoke(ClientMethodIntercepto
r.java:74)
 at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:100)
 at $Proxy0.lookup(Unknown Source)
 at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:625)
 at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
 at javax.naming.InitialContext.lookup(InitialContext.java:351)
 at com.ehms.database.RemoteObjectInvocation.getRemoteObject(RemoteObject
Invocation.java:43)
 at com.ehms.sales.AdminMainFrame$24.actionPerformed(AdminMainFrame.java:
991)
 at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:18
49)
 at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.jav
a:2169)
 at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel
.java:420)
 at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258
)
 at javax.swing.AbstractButton.doClick(AbstractButton.java:302)
 at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1
000)
 at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMen
uItemUI.java:1041)
 at java.awt.Component.processMouseEvent(Component.java:5488)
 at javax.swing.JComponent.processMouseEvent(JComponent.java:3093)
 at java.awt.Component.processEvent(Component.java:5253)
 at java.awt.Container.processEvent(Container.java:1966)
 at java.awt.Component.dispatchEventImpl(Component.java:3955)
 at java.awt.Container.dispatchEventImpl(Container.java:2024)
 at java.awt.Component.dispatchEvent(Component.java:3803)
 at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212
)
 at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3892)

 at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822)
 at java.awt.Container.dispatchEventImpl(Container.java:2010)
 at java.awt.Window.dispatchEventImpl(Window.java:1766)
 at java.awt.Component.dispatchEvent(Component.java:3803)
 at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)


Pls help me

Thanks&Regards,
kalyan

[syedtaj]

Unknown Host exception is the problem. You have to make an entry in the IP host table

Depending upon your platform

Solaris:- add an entry in the /etc/hosts file

# Internet host table
#
127.0.0.1 localhost
<ipaddress> chambers

since chambers is the unknown host.

Windows:- add an entry to the C:\WINDOWS\system32\drivers\etc\hosts

again same as the above.

You will need to reboot the system for the change to take effect.

Regards,
Taj