Java ssh（jsch）输出到UI而不是控制台

Question

我有以下代码，它使用JSch在远程服务器上运行命令，并在通过main方法调用时工作正常。

public static void runCommand(String user, String password, String host, String command,String yesorno ) {

    java.util.Properties config = new java.util.Properties();
    config.put("StrictHostKeyChecking", "no");
    JSch jsch = new JSch();
    Session session;
    try {
        session = jsch.getSession(user, host, 22);
        session.setPassword(password);
        session.setConfig(config);
        session.connect();
        System.out.println("Connected to " + host);
        Channel channel = session.openChannel("exec");
        ((ChannelExec) channel).setCommand(command);
        channel.setInputStream(null);
        OutputStream out = channel.getOutputStream();
        ((ChannelExec) channel).setErrStream(System.err);
        InputStream in = channel.getInputStream();
        ((ChannelExec) channel).setPty(true);
        channel.connect();
        out.write((password + "\n").getBytes());
        out.flush();
        OutputStream out1 = channel.getOutputStream();


        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));
                if(new String(tmp,0,i).toLowerCase().contains("y/n"))
                {

                    out1.write((yesorno + "\n").getBytes());
                    out1.flush();

                }
                else if(new String(tmp,0,i).contains("password"))
                {
                    out1.write((password + "\n").getBytes());
                    out1.flush();

                }



            }
            if (channel.isClosed()) {
                System.out.println("Exit status: " + channel.getExitStatus());
                break;
            }

        }

        channel.disconnect();
        session.disconnect();
        System.out.println("DONE");
    } catch (JSchException | IOException e) {
        e.printStackTrace();
    }

}

现在我想打印命令执行跟踪，但我希望它在我的网页界面中，我将命令传递给这个java方法。我怎样才能做到这一点。我一直在互联网上搜索最近2天没有任何好的答案。提前致谢

Answer 1

我最终决定使用Web套接字并在Java中的onmessage块中使用整个函数。我使用Json从前端提供命令和require字段并解析并在函数中使用它然后在UI中打印输出