Java客户端-服务器：从另一个JVM调用一个JVM中的方法
示例
共享的远程接口：
package remote;
import java.rmi.Remote;
import java.rmi.RemoteException;
public interface RemoteServer extends Remote {
int stringToInt(String string) throws RemoteException;
}实现共享远程接口的服务器：
package server;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.rmi.server.UnicastRemoteObject;
import remote.RemoteServer;
public class Server implements RemoteServer {
@Override
public int stringToInt(String string) throws RemoteException {
System.out.println("Server received: \"" + string + "\"");
return Integer.parseInt(string);
}
public static void main(String[] args) {
try {
Registry reg = LocateRegistry.createRegistry(Registry.REGISTRY_PORT);
Server server = new Server();
UnicastRemoteObject.exportObject(server, Registry.REGISTRY_PORT);
reg.rebind("ServerName", server);
} catch (RemoteException e) {
e.printStackTrace();
}
}
}客户端（远程）调用服务器上的方法：
package client;
import java.rmi.NotBoundException;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import remote.RemoteServer;
public class Client {
static RemoteServer server;
public static void main(String[] args) {
try {
Registry reg = LocateRegistry.getRegistry();
server = (RemoteServer) reg.lookup("ServerName");
} catch (RemoteException | NotBoundException e) {
e.printStackTrace();
}
Client client = new Client();
client.callServer();
}
void callServer() {
try {
int i = server.stringToInt("120");
System.out.println("客户收到： " + i);
} catch (RemoteException e) {
e.printStackTrace();
}
}
}输出：
服务器收到：“120”
客户收到：120