Sto provando la chiamata di metodi remoti in java.Come al solito seguendo le istruzioni del libro che sto studiando qualcosa non và.Dunque il codice in questione è questo:
Viene lanciata questa eccezione:
A quanto pare non accetta la connessione.Come mai?
Codice:
package com.prefect.pi;
import java.net.*;
import java.rmi.*;
import java.rmi.registry.*;
import java.rmi.server.*;
public class Pi extends UnicastRemoteObject
implements PiRemoto {
public double getPi() throws RemoteException {
return Math.PI;
}
public Pi() throws RemoteException {
}
public static void main(String[] arguments) {
System.setSecurityManager(new
RMISecurityManager());
try {
Pi p = new Pi();
Naming.bind("//Ventura-PC:1010/Pi", p);
} catch (Exception e) {
System.out.println("Error -- " +e.toString());
e.printStackTrace();
}
}
}
Codice:
Error -- java.rmi.ConnectException: Connection refused to host: Ventura-PC; nested exception is:
java.rmi.ConnectException: Connection refused to host: Ventura-PC; nested exception is:
java.net.ConnectException: Connection refused: connect
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 com.prefect.pi.Pi.main(Pi.java:23)
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)
at java.net.Socket.connect(Socket.java:478)
at java.net.Socket.<init>(Socket.java:375)
at java.net.Socket.<init>(Socket.java:189)
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