How we can copy the windchill dynamic url through java code?

Hello @CH_10067600 

You need to describe what you are trying achieve. 

There are apis to generate URL to a object. 

Here is example how to get URL to persistable object detail page 

(persistable object can be any object in the system , WTPart, CADDocument, WTDocument)

NmOid workOid = new NmOid();
workOid.setRef(persistObject); // persistObject is a object as a WTPart and so on. You just need to search for them with another API....
NmAction workNmAction = NmActionServiceHelper.service.getAction("object", "view");
workNmAction.setContextObject(workOid);

String objURL = workNmAction.getActionUrlExternal();

Hope this can help

PetrH