org.apache.sshd的SshClient客户端 连接服务器执行命令 示例

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：