在textview上使用JSCH打印System.err消息

时间:2016-05-17 10:14:12

标签: android-studio jsch

我已经解决了这个问题: 我的解决方案 我将ErrStream打印成'in2',然后将其打印出来,就像'in'

一样
InputStream in2 = ((ChannelExec) channel).getErrStream();

我的目标:

- 在textview上从System.err打印错误消息“bash:dumper:command not found”(如android监视器所示)

我的问题:

- 如何从System.err读取错误消息?

代码是什么:

-get来自用户的ssh命令然后显示为返回

public void ssh_send_cmd(String input_cmd) {
        ssh_input_cmd = input_cmd;
        Runnable runnable = new Runnable() {
            public void run() {
                IDList.clear();
                Connection connection = null;
                Session session= null;
                try {
                JSch jsch = new JSch();
                // Get SSH session
                session = jsch.getSession(Global.servUser, Global.host, Global.port);
                session.setPassword(Global.servPwd);
                java.util.Properties config = new java.util.Properties();
                // Never automatically add new host keys to the host file
                config.put("StrictHostKeyChecking", "no");
                session.setConfig(config);
                // Connect to remote server
                session.connect();
                System.out.println("Connection through ssh established!");
                String command = ssh_input_cmd;
                Channel channel = session.openChannel("exec");
                ((ChannelExec) channel).setCommand(command);
                ((ChannelExec) channel).setErrStream(System.err);
                InputStream in = channel.getInputStream();
                System.out.println("Connect to session...");
                channel.connect();

                byte[] tmp = new byte[1024];
                while (true) {
                    while (in.available() > 0) {
                        int i = in.read(tmp, 0, 1024);
                        if (i < 0) {
                            break;
                        }
                        System.out.print(new String(tmp, 0, i));
                        update_monitor(new String(tmp, 0, i));
                    }
                    if (channel.isClosed()) {
                        System.out.println("exit-status: " + channel.getExitStatus());
                        update_monitor("exit-status: " + channel.getExitStatus());
                        break;
                    }
                    try {
                        Thread.sleep(1000);
                    } catch (Exception ee) {
                        System.out.println(ee);
                    }
                }
                channel.disconnect();

            }catch (Exception e) {
                System.out.println(e);
                update_monitor("error 1");
            }finally{
                if(session !=null && session.isConnected()){
                    session.disconnect();
                }
            }
        }
    };
    Thread mythread = new Thread(runnable);
    mythread.start();
}

Android监视器:

  

com.example.acer.ssh_cmd I / System.out:通过ssh建立连接!

     

com.example.acer.ssh_cmd I / System.out:连接到会话......

     

com.example.acer.ssh_cmd W / System.err: bash:dumper:command not found

     

com.example.asus.ssh_cmd I / System.out:exit-status:127

bash:dumper:找不到命令

供您参考:“dumper”是用户输入的,未找到命令

0 个答案:

没有答案
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