4

使用 jsch

当我运行以下 cmd 'sudo su -' 程序挂起

[TestNG] Running:
C:\Users\brian.crosby\AppData\Local\Temp\testng-eclipse-952620154\testng-customsuite.xml
[root@tbx2-toy-1 ~]#

看起来“sudo su -”起作用了，因为输出状态为“[root@tbx2-toy-1 ~]#”，但是当我发送另一个 cmd 时它没有响应。

继承人的代码：

package com.linux;

import java.io.InputStream;
import org.testng.annotations.*;
import com.jcraft.jsch.*;
import com.thoughtworks.selenium.*;

public class LinuxConnection extends SeleneseTestBase{

    String host = null;
    private StringBuilder strFileData;
    String randomFileName = null;

    public String getFileData() {
        return strFileData.toString();
    }
    public String getRandomFileName() {
        return randomFileName;
    }

    public LinuxConnection() {
        strFileData = new StringBuilder();
    }

    @Test
    public void createUpdateTBX2FileData(String command)throws Exception {

        try {
            JSch jsch = new JSch();
            host = "brian-crosby@************.net"; 

            String user = host.substring(0, host.indexOf('@'));
            host = host.substring(host.indexOf('@') + 1);

            Session session = jsch.getSession(user, host, 22);

            UserInfo ui = new MyUserInfo();
            session.setUserInfo(ui);
            session.connect();

            ChannelExec channel = (ChannelExec)session.openChannel("exec");
            ((ChannelExec)channel).setPty(true);
            ((ChannelExec) channel).setCommand(command);

            ((ChannelExec) channel).setErrStream(System.err);

            InputStream in = channel.getInputStream();
            channel.connect();

            byte[] tmp = new byte[2048];

            while (in.read(tmp, 0, 2048) > 0) {
                String str = new String(tmp);
                strFileData.append(str);
                System.out.println(strFileData);
            }
            in.close();
            channel.disconnect();
            session.disconnect();
        } catch (Exception e) {
            System.out.println(e);
        }
    }

    public static class MyUserInfo implements UserInfo {

        public String getPassword() {
            return "********";
        }

        public boolean promptYesNo(String str) {
            str = "Yes";
            return true;
        }

        String passwd;

        public String getPassphrase() {
            return null;
        }

        public boolean promptPassphrase(String message) {
            return true;
        }

        public boolean promptPassword(String message) {
            passwd = "*******"; 
            return true;
        }

        public void showMessage(String message) {

        }
    }

}

这是我发送 cmds 的地方：

package com.linux;

import org.testng.annotations.*;

public class testLinuxConnection {

    @Test
    public void testLinux() throws Exception{
        LinuxConnection obj = new LinuxConnection();
        String command = "touch tester1.txt; sudo su -; rm tester1.txt;";
        obj.createUpdateTBX2FileData(command);  
    }
}

我再次在谷歌上花了几个小时试图找到解决方案但没有成功

任何帮助表示赞赏

4

1 回答 1

1

您的代码缺少运行所需的其余代码。您需要从已初始化的会话对象中初始化所需的通道类型。由于您需要能够一个接一个地运行多个命令，因此您需要一个Shell类型通道：

您应该查看JSch的示例（即 Shell.java），这里供您快速参考：

/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
/**
 * This program enables you to connect to sshd server and get the shell prompt.
 *   $ CLASSPATH=.:../build javac Shell.java 
 *   $ CLASSPATH=.:../build java Shell
 * You will be asked username, hostname and passwd. 
 * If everything works fine, you will get the shell prompt. Output will
 * be ugly because of lacks of terminal-emulation, but you can issue commands.
 *
 */
import com.jcraft.jsch.*;
import java.awt.*;
import javax.swing.*;

public class Shell{
  public static void main(String[] arg){

    try{
      JSch jsch=new JSch();

      //jsch.setKnownHosts("/home/foo/.ssh/known_hosts");

      String host=null;
      if(arg.length>0){
        host=arg[0];
      }
      else{
        host=JOptionPane.showInputDialog("Enter username@hostname",
                                         System.getProperty("user.name")+
                                         "@localhost"); 
      }
      String user=host.substring(0, host.indexOf('@'));
      host=host.substring(host.indexOf('@')+1);

      Session session=jsch.getSession(user, host, 22);

      String passwd = JOptionPane.showInputDialog("Enter password");
      session.setPassword(passwd);

      UserInfo ui = new MyUserInfo(){
        public void showMessage(String message){
          JOptionPane.showMessageDialog(null, message);
        }
        public boolean promptYesNo(String message){
          Object[] options={ "yes", "no" };
          int foo=JOptionPane.showOptionDialog(null, 
                                               message,
                                               "Warning", 
                                               JOptionPane.DEFAULT_OPTION, 
                                               JOptionPane.WARNING_MESSAGE,
                                               null, options, options[0]);
          return foo==0;
        }

        // If password is not given before the invocation of Session#connect(),
        // implement also following methods,
        //   * UserInfo#getPassword(),
        //   * UserInfo#promptPassword(String message) and
        //   * UIKeyboardInteractive#promptKeyboardInteractive()

      };

      session.setUserInfo(ui);

      // It must not be recommended, but if you want to skip host-key check,
      // invoke following,
      // session.setConfig("StrictHostKeyChecking", "no");

      //session.connect();
      session.connect(30000);   // making a connection with timeout.

      Channel channel=session.openChannel("shell");

      // Enable agent-forwarding.
      //((ChannelShell)channel).setAgentForwarding(true);

      channel.setInputStream(System.in);
      /*
      // a hack for MS-DOS prompt on Windows.
      channel.setInputStream(new FilterInputStream(System.in){
          public int read(byte[] b, int off, int len)throws IOException{
            return in.read(b, off, (len>1024?1024:len));
          }
        });
       */

      channel.setOutputStream(System.out);

      /*
      // Choose the pty-type "vt102".
      ((ChannelShell)channel).setPtyType("vt102");
      */

      /*
      // Set environment variable "LANG" as "ja_JP.eucJP".
      ((ChannelShell)channel).setEnv("LANG", "ja_JP.eucJP");
      */

      //channel.connect();
      channel.connect(3*1000);
    }
    catch(Exception e){
      System.out.println(e);
    }
  }

  public static abstract class MyUserInfo
                          implements UserInfo, UIKeyboardInteractive{
    public String getPassword(){ return null; }
    public boolean promptYesNo(String str){ return false; }
    public String getPassphrase(){ return null; }
    public boolean promptPassphrase(String message){ return false; }
    public boolean promptPassword(String message){ return false; }
    public void showMessage(String message){ }
    public String[] promptKeyboardInteractive(String destination,
                                              String name,
                                              String instruction,
                                              String[] prompt,
                                              boolean[] echo){
      return null;
    }
  }
}
于 2013-03-27T22:20:22.600 回答