Java开发网 - primary key was null

Topic: primary key was null

1.primary key was null	Copy to clipboard
Posted by: zouqinbin Posted on: 2006-08-28 11:54 ic=new InitialContext(ht); Object obj = ic.lookup("Users"); UsersRemoteHome home = (UsersRemoteHome)javax.rmi.PortableRemoteObject.narrow(obj,UsersRemoteHome.class); // calc=home.create(); calc = home.findByPrimaryKey(logname); 最后一句出现错误，说primary key was null，是什么原因啊？