startbankclient.java

java的一系列产品中包括jsme,jmse,j2ee,本文件提供j2ee实现的源代码.

package sessionBank;

import java.math.BigDecimal;
import java.util.*;
import javax.ejb.*;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.rmi.PortableRemoteObject;

public class StartBankClient{	
	private static final String JNDI_NAME = "StartBankEJB";
	private static final String url  = "t3://localhost:7001";	
  public static void main(String[] args){
    try{
      // Get an InitialContext
      Properties env = new Properties();
      env.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
      env.put(Context.PROVIDER_URL, url);
      
      Context ctx = new InitialContext(env);      
      Object h=ctx.lookup(JNDI_NAME);
      StartBankHome startbankhome=(StartBankHome)
        	PortableRemoteObject.narrow(h,StartBankHome.class);
      StartBank startbank =startbankhome.create();
      
      String theWelcome=startbank.WelcomeCustomer();
      System.out.println("My SessionEJB said:"+theWelcome);
      
      System.out.println("Finding All the customer in level 1:");    
    	try {
      	Collection c = startbank.getSameLevelCustomer(1);
      	if (c.isEmpty()) {
        	System.err.println("No customers were found in level 1.");
      	} else {
        	Iterator it = c.iterator();
        	while (it.hasNext()) {
          	Bank b =(Bank)PortableRemoteObject.narrow(it.next(),Bank.class);
          	System.err.println("Found customer named: "+b.getownerName()+
            	"ID:"+b.getaccountID()+" in level 1.");
        	}        	
      	}
    	}catch (Exception e) {
      	System.err.println("Unable to find customers in level 1.");
      	//e.printStackTrace();
      	//throw e;
    	}
    }catch(Exception ex) {
      System.err.println("Caught an unexpected exception!");      
    }
 } 
}