java use remote link jsch linux command execution

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelExec;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;

/**

• java use remote link jsch linux command execution
• @author myz

• */
  public class JSchUtil {
  private static JSch jsch;
  private static Session session;

  /**

  • First, connect to the server
  • @param user
  • @param passwd
  • @param host

  • @throws JSchException
    */
    public static void connect(String user, String passwd, String host) throws JSchException {
    jsch = new JSch();
    session = jsch.getSession(user, host, 22);
    session.setPassword(passwd);
    java.util.Properties config = new java.util.Properties();
    config.put("StrictHostKeyChecking", "no");
    session.setConfig(config);

    session.connect();
    }

  /**

  • After connecting to the server executes the corresponding command linux
  • @param command
  • @param user
  • @param passwd
  • @param host
  • @throws JSchException
    */
    public static void execCmd(String command, String user, String passwd, String host) throws JSchException {
    connect(user, passwd, host);
    BufferedReader reader = null;
    Channel channel = null;
    try {
    while (command != null) {
    channel = session.openChannel("exec");
    ((ChannelExec) channel).setCommand(command);
    channel.setInputStream(null);
    ((ChannelExec) channel).setErrStream(System.err);
    channel.connect();
    //获取流
    InputStream in = channel.getInputStream();
    reader = new BufferedReader(new InputStreamReader(in));
    String buf = null;
    while ((buf = reader.readLine()) != null) {
    System.out.println (buf); // returns the print result log
    }
    }
    } the catch (IOException E) {
    e.printStackTrace ();
    } the catch (JSchException E) {
    e.printStackTrace ();
    } // Finally the finally { and close the flow connection of
    the try {
    reader.Close ();
    } the catch (IOException E) {
    e.printStackTrace ();
    }
    channel.disconnect ();
    Session.disconnect ();
    }
    }

}