java Apache sshd网络断线重连

Apache SSHD 提供了一个名为 `IoServiceEventListener` 的接口，用于监听底层网络连接的事件，包括连接建立、断开等。你可以实现该接口，并在 `sessionCreated()` 方法中对会话进行初始化操作，在 `sessionClosed()` 方法中进行断线重连操作。下面是一个简单的示例代码：

public class MyIoServiceEventListener implements IoServiceEventListener {
    private final SshClient sshClient;
    private final SshConnector sshConnector;
    private final ConnectFuture connectFuture;

    public MyIoServiceEventListener(SshClient sshClient, SshConnector sshConnector, ConnectFuture connectFuture) {
        this.sshClient = sshClient;
        this.sshConnector = sshConnector;
        this.connectFuture = connectFuture;
    }

    @Override
    public void sessionCreated(IoSession session) {
        // 对会话进行初始化操作
    }

    @Override
    public void sessionClosed(IoSession session) {
        // 进行断线重连操作
        if (!connectFuture.isConnected()) {
            try {
                connectFuture.addListener(new SshFutureListener<ConnectFuture>() {
                    @Override
                    public void operationComplete(ConnectFuture future) {
                        if (future.isConnected()) {
                            // 重新初始化会话
                        } else {
                            // 连接失败
                        }
                    }
                });
                sshConnector.connect();
            } catch (IOException e) {
                // 处理异常
            }
        }
    }
}

然后，在创建 `SshClient` 对象时，将该监听器添加到 `IoServiceFactoryFactory` 中：

SshClient sshClient = SshClient.setUpDefaultClient();
IoServiceFactoryFactory factoryFactory = sshClient.getIoServiceFactoryFactory();
factoryFactory.addListener(new MyIoServiceEventListener(sshClient, sshConnector, connectFuture));

这样，当网络连接断开时，`sessionClosed()` 方法会被调用，你就可以在该方法中进行断线重连操作了。