java RMI注册对象异常?

Z时代
2024-01-10
分类：IT

//helloServer.java
public interface HelloServer extends Remote
{
    public String echo(String msg) throws RemoteException ;
    public Date getTime() throws RemoteException ;
}
//HelloServiceImpl.java
public class HelloServiceImpl extends UnicastRemoteObject implements HelloServer
{
    private String name ;
    public HelloServiceImpl(String name) throws RemoteException
    {
        this.name = name ;
    }
    public String echo(String msg) throws RemoteException
    {
        System.out.println(name + ":调用echo()方法") ;
        return "echo: " + msg + " from " + name ;
    }
    public Date getTime() throws RemoteException
    {
        System.out.println(name + ":调用getTime()方法") ;
        return new Date() ;
    }
}
//SimpleServer.java
public class SimpleServer
{
    public static void main(String[] args) throws Exception
    {
        HelloServer service1 = new HelloServiceImpl("service1") ;
        HelloServer service2 = new HelloServiceImpl("service2") ;
        Context namingContext = new InitialContext() ;
        namingContext.rebind("rmi://localhost:1099/HelloService1" , service1) ;
        namingContext.rebind("rmi://localhost:1099/HelloService2" , service2) ;
        namingContext.rebind("rmi://10.10.160.16:1099/HelloService1" , service1) ;
        namingContext.rebind("rmi://10.10.160.16:1099/HelloService2" , service2) ;
        namingContext.rebind("rmi:HelloService1" , service1) ;
        namingContext.rebind("rmi:HelloService2" , service2) ;
        System.out.println("服务器注册了两个HelloService对象") ;
    }
}