java 远程访问linux服务器

import com.jcraft.jsch.*;

public class SSHExample {
    public static void main(String[] args) {
        String host = "your_server_ip";
        String user = "your_username";
        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.sql.*;

public class JDBCExample {
    public static void main(String[] args) {
        String url = "jdbc:mysql://your_server_ip:3306/your_database";
        String user = "your_username";
        String password = "your_password";

        try {
            Class.forName("com.mysql.jdbc.Driver");
            Connection conn = DriverManager.getConnection(url, user, password);
            Statement stmt = conn.createStatement();
            ResultSet rs = stmt.executeQuery("SELECT * FROM your_table");

            while (rs.next()) {
                System.out.println(rs.getString("your_column"));
            }

            rs.close();
            stmt.close();
            conn.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}