fix code

hutool-extra/src/main/java/org/dromara/hutool/extra/ssh/Session.java

@@ -22,4 +22,11 @@ import java.io.Closeable;
  * @author looly
  */
 public interface Session extends Wrapper<Object>, Closeable {
+
+	/**
+	 * 是否连接状态
+	 *
+	 * @return 是否连接状态
+	 */
+	boolean isConnected();
 }

hutool-extra/src/main/java/org/dromara/hutool/extra/ssh/engine/ganymed/GanymedSession.java

@@ -75,6 +75,12 @@ public class GanymedSession implements Session {
 		return raw;
 	}
 
+	@Override
+	public boolean isConnected() {
+		// 未找到合适的方法判断是否在线
+		return true;
+	}
+
 	@Override
 	public void close() throws IOException {
 		if (raw != null) {

hutool-extra/src/main/java/org/dromara/hutool/extra/ssh/engine/jsch/JschSession.java

@@ -60,12 +60,7 @@ public class JschSession implements Session {
 		return this.raw;
 	}
 
-	/**
+	@Override
-	 * 是否连接状态
-	 *
-	 * @return 是否连接状态
-	 */
-	@SuppressWarnings("BooleanMethodIsAlwaysInverted")
 	public boolean isConnected() {
 		return null != this.raw && this.raw.isConnected();
 	}
@@ -103,10 +98,7 @@ public class JschSession implements Session {
 	 * @throws SshException 端口绑定失败异常
 	 */
 	public boolean bindLocalPort(final String remoteHost, final int remotePort, final String localHost, final int localPort) throws SshException {
-		if (!isConnected()) {
+		if (isConnected()) {
-			return false;
-		}
-
 			try {
 				this.raw.setPortForwardingL(localHost, localPort, remoteHost, remotePort);
 			} catch (final JSchException e) {
@@ -114,6 +106,8 @@ public class JschSession implements Session {
 			}
 			return true;
 		}
+		return false;
+	}
 
 	/**
 	 * 解除远程端口映射
@@ -139,10 +133,7 @@ public class JschSession implements Session {
 	 * @throws SshException 端口绑定失败异常
 	 */
 	public boolean bindRemotePort(final int bindPort, final String host, final int port) throws SshException {
-		if (!isConnected()) {
+		if (isConnected()) {
-			return false;
-		}
-
 			try {
 				this.raw.setPortForwardingR(bindPort, host, port);
 			} catch (final JSchException e) {
@@ -150,6 +141,8 @@ public class JschSession implements Session {
 			}
 			return true;
 		}
+		return false;
+	}
 
 	/**
 	 * 解除远程端口映射

hutool-extra/src/main/java/org/dromara/hutool/extra/ssh/engine/mina/MinaSession.java

@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2023 looly(loolly@aliyun.com)
+ * Hutool is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *          https://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+
+package org.dromara.hutool.extra.ssh.engine.mina;
+
+import org.apache.sshd.client.SshClient;
+import org.apache.sshd.client.channel.ChannelShell;
+import org.apache.sshd.client.session.ClientSession;
+import org.dromara.hutool.core.io.IORuntimeException;
+import org.dromara.hutool.core.io.IoUtil;
+import org.dromara.hutool.extra.ssh.Connector;
+import org.dromara.hutool.extra.ssh.Session;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.nio.charset.Charset;
+
+/**
+ * Apache MINA SSHD（https://mina.apache.org/sshd-project/）会话封装
+ *
+ * @author looly
+ */
+public class MinaSession implements Session {
+
+	private final SshClient sshClient;
+	private final ClientSession raw;
+
+	/**
+	 * 构造
+	 *
+	 * @param connector 连接信息
+	 */
+	public MinaSession(final Connector connector) {
+		this.sshClient = MinaUtil.openClient();
+		this.raw = MinaUtil.openSession(this.sshClient, connector);
+	}
+
+	@Override
+	public Object getRaw() {
+		return this.raw;
+	}
+
+	@Override
+	public boolean isConnected() {
+		return null != this.raw && this.raw.isOpen();
+	}
+
+	@Override
+	public void close() throws IOException {
+		IoUtil.closeQuietly(this.raw);
+		if (null != this.sshClient) {
+			this.sshClient.stop();
+		}
+		IoUtil.closeQuietly(this.sshClient);
+	}
+
+	/**
+	 * 执行Shell命令
+	 *
+	 * @param cmd     命令
+	 * @param charset 发送和读取内容的编码
+	 * @return 结果
+	 */
+	public String exec(final String cmd, final Charset charset) {
+		return exec(cmd, charset, System.err);
+	}
+
+	/**
+	 * 执行Shell命令（使用EXEC方式）
+	 * <p>
+	 * 此方法单次发送一个命令到服务端，不读取环境变量，执行结束后自动关闭channel，不会产生阻塞。
+	 * </p>
+	 * 参考：https://github.com/apache/mina-sshd/blob/master/docs/client-setup.md#running-a-command-or-opening-a-shell
+	 *
+	 * @param cmd       命令
+	 * @param charset   发送和读取内容的编码
+	 * @param errStream 错误信息输出到的位置
+	 * @return 执行结果内容
+	 */
+	public String exec(final String cmd, final Charset charset, final OutputStream errStream) {
+		try {
+			return this.raw.executeRemoteCommand(cmd, errStream, charset);
+		} catch (final IOException e) {
+			throw new IORuntimeException(e);
+		}
+	}
+
+	/**
+	 * 执行Shell命令
+	 * <p>
+	 * 此方法单次发送一个命令到服务端，自动读取环境变量，执行结束后自动关闭channel，不会产生阻塞。
+	 * </p>
+	 *
+	 * @param cmd     命令
+	 * @param charset 发送和读取内容的编码
+	 * @param errStream 异常输出位置
+	 * @return 结果
+	 */
+	public String execByShell(final String cmd, final Charset charset, final OutputStream errStream){
+		final ChannelShell shellChannel;
+		try {
+			shellChannel = this.raw.createShellChannel();
+			if(null != errStream){
+				shellChannel.setErr(errStream);
+			}
+			shellChannel.open().verify();
+		} catch (final IOException e) {
+			throw new IORuntimeException(e);
+		}
+
+		IoUtil.write(shellChannel.getInvertedIn(), charset, false, cmd);
+		return IoUtil.read(shellChannel.getInvertedOut(),charset);
+	}
+}

hutool-extra/src/main/java/org/dromara/hutool/extra/ssh/engine/mina/MinaUtil.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2023 looly(loolly@aliyun.com)
+ * Hutool is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *          https://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+
+package org.dromara.hutool.extra.ssh.engine.mina;
+
+import org.apache.sshd.client.SshClient;
+import org.apache.sshd.client.session.ClientSession;
+import org.dromara.hutool.core.io.IORuntimeException;
+import org.dromara.hutool.extra.ssh.Connector;
+
+import java.io.IOException;
+
+/**
+ * Apache MINA SSHD（https://mina.apache.org/sshd-project/）相关工具类
+ *
+ * @author looly
+ */
+public class MinaUtil {
+
+	/**
+	 * 打开一个客户端对象
+	 * @return 客户端对象
+	 */
+	public static SshClient openClient(){
+		final SshClient sshClient = SshClient.setUpDefaultClient();
+		sshClient.start();
+
+		return sshClient;
+	}
+
+	/**
+	 * 打开一个新的Session
+	 *
+	 * @param sshClient 客户端
+	 * @param connector 连接信息
+	 * @return {@link ClientSession}
+	 */
+	public static ClientSession openSession(final SshClient sshClient, final Connector connector){
+		final ClientSession session;
+		final boolean success;
+		try {
+			session = sshClient
+				.connect(connector.getUser(), connector.getHost(), connector.getPort())
+				.verify()
+				.getSession();
+
+			session.addPasswordIdentity(connector.getPassword());
+			success = session.auth().verify().isSuccess();
+		} catch (final IOException e) {
+			throw new IORuntimeException(e);
+		}
+
+		if(!success){
+			throw new IORuntimeException("Authentication failed.");
+		}
+
+		return session;
+	}
+}

hutool-extra/src/main/java/org/dromara/hutool/extra/ssh/engine/sshj/SshjSession.java

@@ -74,11 +74,7 @@ public class SshjSession implements Session {
 		return raw;
 	}
 
-	/**
+	@Override
-	 * 是否连接状态
-	 *
-	 * @return 是否连接状态
-	 */
 	public boolean isConnected() {
 		return null != this.raw && (null == this.ssh || this.ssh.isConnected());
 	}