引入依赖

		<dependency><groupId>org.apache.sshd</groupId><artifactId>sshd-core</artifactId><version>2.9.1</version></dependency>

示例代码，可以直接执行，也可以做替换命令、维护session等修改

package com.demo.demo;import lombok.extern.slf4j.Slf4j;
import org.apache.sshd.client.SshClient;
import org.apache.sshd.client.channel.ChannelExec;
import org.apache.sshd.client.channel.ClientChannelEvent;
import org.apache.sshd.client.future.AuthFuture;
import org.apache.sshd.client.future.ConnectFuture;
import org.apache.sshd.client.session.ClientSession;import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.EnumSet;
import java.util.concurrent.TimeUnit;@Slf4j
public class SshdUtil {public static final String WHO_AM_I = "whoami";public static void main(String[] args) {execute("**.**.**.**",22,"root","*****");}private static void execute(String host, int port, String username, String password) {SshClient client = SshClient.setUpDefaultClient();ClientSession session = null;try {client.start();ConnectFuture connectFuture = client.connect(username, host, port).verify(10, TimeUnit.SECONDS);if (connectFuture.isConnected()) {session = connectFuture.getSession();session.addPasswordIdentity(password);AuthFuture auth = session.auth().verify(10, TimeUnit.SECONDS);if (auth.isSuccess()) {channelCmd(session, WHO_AM_I);}}} catch (IOException e) {log.error("执行异常", e);} finally {try {if (session != null) {session.close();}client.close();} catch (IOException e) {log.error("关闭异常", e);}}}private static void channelCmd(ClientSession session, String cmd) throws IOException {ChannelExec channel = session.createExecChannel(cmd);ByteArrayOutputStream output = new ByteArrayOutputStream();ByteArrayOutputStream outputErr = new ByteArrayOutputStream();channel.setOut(output);channel.setErr(outputErr);channel.open();channel.waitFor(EnumSet.of(ClientChannelEvent.CLOSED), 0);log.info("Output：{}", output.toString().replace("\n", "\\n"));log.info("Error：{}", outputErr.toString().replace("\n", "\\n"));}
}

输出如下，分别代表了输出流stdout和错误输出流stderr

*** [main] SshdUtil INFO  -Output：root\n
*** [main] SshdUtil INFO  -Error：