java实现ssh登录linux服务器并下发命令

import com.jcraft.jsch.ChannelExec;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
import org.apache.commons.io.IOUtils;

import java.io.*;
public class SSHTest {
    public static void main(String[] args) throws JSchException, IOException {
        //建立连接
        int port=22;
        String host="10.XX.XX.XX";
        String userName="admin";
        String password="XXXX";
        JSch jsch = new JSch();
        Session session = jsch.getSession(userName, host, port);
        session.setPassword(password);
        session.setConfig("StrictHostKeyChecking","no");
        session.setTimeout(6000);
        session.connect();
        //建立连接结束
        //发送指令
        ChannelExec exec = (ChannelExec) session.openChannel("exec");
        InputStream in = exec.getInputStream();
        exec.setCommand("date");
        exec.connect();
        String s = IOUtils.toString(in, "GBK");
        System.out.println("结果："+s);
        in.close();
    }
}