java RMI简单例子

package com.spring.sky.test; import java.net.MalformedURLException; import java.rmi.AlreadyBoundException; import java.rmi.Naming; import java.rmi.RemoteException; import java.rmi.registry.LocateRegistry; import com.spring.sky.dao.UserDao; import com.spring.sky.dao.impl.UserDaoImpl; /** * 使用main方法启动一个服务，用于外界环境访问 * @author spring sky * date:2012年2月7日 10:57:37 * Email:vipa1888@163.com * QQ:840950105 */ public class StartService { private static final String IP = "127.0.0.1"; private static final int PORT = 9999; private static final String REMOTE_NAME = "userDao"; private static final String REMOTE_URL = "rmi://"+IP+":"+PORT+"/"+REMOTE_NAME; public static void main(String[] args) { try { UserDao userDao = new UserDaoImpl(); //实例化对象 LocateRegistry.createRegistry(PORT); //注册端口 Naming.bind(REMOTE_URL, userDao); //绑定远程服务对象 System.out.println("远程"+REMOTE_NAME+"启动成功...."); } catch (RemoteException e) { System.err.println("远程对象出错"); e.printStackTrace(); } catch (MalformedURLException e) { System.err.println("URL出错了"); e.printStackTrace(); } catch (AlreadyBoundException e) { System.err.println("绑定的对象已经存在了"); e.printStackTrace(); } } }