我不知道其他人是否合理或期望,但......
当您使用Session连接以创建shell Channel并发送命令并等待它完成时,有没有办法检测或获得作业已完成的通知?
三种解决方案是可以接受的: 1)获取通知(信号,事件,其他) 2)读取标志(布尔值,退出状态,其他) 3)实时读取输出并解析完成语句
这是我一直在使用的template:
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import com.jcraft.jsch.Channel;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
/** Demonstrates a connection to a remote host via SSH. **/
public class ExecuteSecureShellCommand
{
private static final String user = ""; // TODO: Username of ssh account on remote machine
private static final String host = ""; // TODO: Hostname of the remote machine (eg: inst.eecs.berkeley.edu)
private static final String password = ""; // TODO: Password associated with your ssh account
private static final String command = "ls -l\n"; // Remote command you want to invoke
public static void main(String args[]) throws JSchException, InterruptedException
{
JSch jsch = new JSch();
// TODO: You will probably want to use your client ssl certificate instead of a password
// jsch.addIdentity(new File(new File(new File(System.getProperty("user.home")), ".ssh"), "id_rsa").getAbsolutePath());
Session session = jsch.getSession(user, host, 22);
// TODO: You will probably want to use your client ssl certificate instead of a password
session.setPassword(password);
// Not recommended - skips host check
session.setConfig("StrictHostKeyChecking", "no");
// session.connect(); - ten second timeout
session.connect(10*1000);
Channel channel = session.openChannel("shell");
// TODO: You will probably want to use your own input stream, instead of just reading a static string.
InputStream is = new ByteArrayInputStream(command.getBytes());
channel.setInputStream(is);
// Set the destination for the data sent back (from the server)
// TODO: You will probably want to send the response somewhere other than System.out
channel.setOutputStream(System.out);
// channel.connect(); - fifteen second timeout
channel.connect(15 * 1000);
// Wait three seconds for this demo to complete (ie: output to be streamed to us).
Thread.sleep(3*1000);
// Disconnect (close connection, clean up system resources)
channel.disconnect();
session.disconnect();
}
}