关于RMI的问题~求助 急死人啊~~ （ConnectIOException~ConnectException）

请大虾
耐心看看啊 · 自己整了 很长时间了 实在是无语了 ·~·  先谢谢关注的童鞋们了。。因为在myeclipse不知道怎么引用policy文件 直接就把安全策略暂时删除了。。下面是 源代码：
//服务端
import java.rmi.*;
public interface HelloWorld extends Remote {
void sayHello()throws RemoteException;
void visit()throws RemoteException;
void sayByebye()throws RemoteException;
}import java.rmi.*;
import java.rmi.server.*;
public class HelloWorldImpl extends UnicastRemoteObject implements HelloWorld {
private static final long serialVersionUID = 70L;
public HelloWorldImpl()throws Exception{
super();
}
public void sayHello(){
System.out.println("Hello!!");
}
public void visit(){
System.out.println("Hello RMI Server !Client is visiting!");
}
public void sayByebye(){
System.out.println("Byebye RMI Server!");
}
public static void main (String ars[]){
try{
HelloWorldImpl obj=new HelloWorldImpl();
Naming.bind("//localhost:2008/myFirstRmi",obj);
System.out.println("OK to bound the RMI Service");
}catch(Exception e){
// System.out.println(e.getMessage());
e.printStackTrace();
}
}}
java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
java.net.ConnectException: Connection refused: connect
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:601)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:198)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:184)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:322)
at sun.rmi.registry.RegistryImpl_Stub.bind(Unknown Source)
at java.rmi.Naming.bind(Naming.java:111)
at HelloWorldImpl.main(HelloWorldImpl.java:20)
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:519)
at java.net.Socket.connect(Socket.java:469)
at java.net.Socket.<init>(Socket.java:366)
at java.net.Socket.<init>(Socket.java:180)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:22)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:128)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:595)
... 6 more//客户端 
import java.rmi.*;
public class HelloClient {
public static void main(String[] args){

HelloWorld obj=null;
try{

obj=(HelloWorld)Naming.lookup("//localhost:2008/myFirstRmi");
System.out.println("begin RMI Calling");
obj.sayHello();
obj.visit();
obj.sayByebye();
System.out.println("end RMI Calling-----");

}catch(Exception e){

System.out.println("HelloClient exception:"+e.getMessage());
            e.printStackTrace();
}

}}
HelloClient exception:Connection refused to host: localhost; nested exception is: 
java.net.ConnectException: Connection refused: connect
java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
java.net.ConnectException: Connection refused: connect
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:601)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:198)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:184)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:322)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
at java.rmi.Naming.lookup(Naming.java:84)
at HelloClient.main(HelloClient.java:8)
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:519)
at java.net.Socket.connect(Socket.java:469)
at java.net.Socket.<init>(Socket.java:366)
at java.net.Socket.<init>(Socket.java:180)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:22)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:128)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:595)
... 6 more