import orderMgmt.*;
import java.util.Properties;
import javax.naming.*;
import javax.naming.Context;
import javax.rmi.*;

public class Client
{
    public static void main( String args[] )
    {
        try{
            Properties prop = new Properties();
            prop.put( Context.INITIAL_CONTEXT_FACTORY, 
                   "weblogic.jndi.WLInitialContextFactory" );
            prop.put( Context.PROVIDER_URL, "t3://localhost:7001" );
            Context ctx = new InitialContext( prop );

            OrderManagementHome home = (OrderManagementHome) 
            PortableRemoteObject.narrow(
                     ctx.lookup( "java:comp/env/ejb/OrderManagement"), 
                              OrderManagementHome.class );

            OrderManagement order = (OrderManagement)home.create();
            order.placeOrder( "lin", "hui", 5 );
            order.remove();
        }catch( Exception e ){
            System.err.println( "" + e.getMessage() );
            System.err.println( "" + e.toString() );ss
        }
    }
}

运行后提示:

Cannot instantiate class: 
              weblogic.jndi.WLInitialContextFactory
javax.naming.NoInitialContextException: 
                Cannot instantiate class:
                weblogic.jndi.WLInitialContextFactory 
       [Root exception is java.lang.ClassNotFoundException: 
           weblogic.jndi.WLInitialContextFactory]

帮忙看看!!! 谢谢

把weblogic.jar加到CLASSPATH应该可以了
WLInitialContextFactory是JNDI进行查找时需要提供的SPI
具体位置在：%WL_HOME%/lib/weblogic.jar

Properties h = new Properties();
      h.put(Context.INITIAL_CONTEXT_FACTORY,
        "weblogic.jndi.WLInitialContextFactory");
      h.put(Context.PROVIDER_URL, "t3://localhost:7001");
      Context ctx = new InitialContext(h);

这样没错啊，你把weblogic.jar加进来了没有？
没加进来肯定不行的啊。