java远程linux

import com.jcraft.jsch.*;

public class SSHExample {
    public static void main(String[] args) {
        String host = "your_host";
        String user = "your_user";
        String password = "your_password";

        try {
            JSch jsch = new JSch();
            Session session = jsch.getSession(user, host, 22);
            session.setPassword(password);
            session.setConfig("StrictHostKeyChecking", "no");
            session.connect();

            ChannelExec channel = (ChannelExec) session.openChannel("exec");
            channel.setCommand("ls -l");
            InputStream in = channel.getInputStream();
            channel.connect();

            byte[] tmp = new byte[1024];
            while (true) {
                while (in.available() > 0) {
                    int i = in.read(tmp, 0, 1024);
                    if (i < 0) break;
                    System.out.print(new String(tmp, 0, i));
                }
                if (channel.isClosed()) {
                    System.out.println("exit-status: " + channel.getExitStatus());
                    break;
                }
                try { Thread.sleep(1000); } catch (Exception ee) {}
            }
            channel.disconnect();
            session.disconnect();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.rmi.server.UnicastRemoteObject;

public class RMIServer implements RemoteInterface {
    public String sayHello() {
        return "Hello, world!";
    }

    public static void main(String args[]) {
        try {
            RMIServer obj = new RMIServer();
            RemoteInterface stub = (RemoteInterface) UnicastRemoteObject.exportObject(obj, 0);

            Registry registry = LocateRegistry.createRegistry(1099);
            registry.bind("RemoteInterface", stub);

            System.out.println("Server ready");
        } catch (Exception e) {
            System.err.println("Server exception: " + e.toString());
            e.printStackTrace();
        }
    }
}

import javax.management.*;
import java.lang.management.*;

public class JMXClient {
    public static void main(String[] args) {
        try {
            JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://your_host:1099/jmxrmi");
            JMXConnector jmxConnector = JMXConnectorFactory.connect(url);
            MBeanServerConnection mbsc = jmxConnector.getMBeanServerConnection();

            ObjectName name = new ObjectName("java.lang:type=Memory");
            MemoryMXBean memoryMxBeanProxy = JMX.newMXBeanProxy(mbsc, name.toString(), MemoryMXBean.class);

            MemoryUsage heapMemoryUsage = memoryMxBeanProxy.getHeapMemoryUsage();
            System.out.println("Heap Memory Usage: " + heapMemoryUsage);

            jmxConnector.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}