在远程服务器上运行多个命令

时间:2015-12-08 11:35:33

标签: java linux ssh jsch

到目前为止,我已设法连接,运行单个命令然后断开连接。我遇到的问题是之后运行第二个,第三个等命令。

public static void main(String args[]) {
        try {
            JSch js = new JSch();
            Session session = js.getSession("myuser", "myhost", 22);
            session.setPassword("mypassword");
            Properties properties = new Properties() {
                {
                    put("StrictHostKeyChecking", "no");
                }
            };
            session.setConfig(properties);
            session.connect();

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

            ChannelExec channelExec = (ChannelExec) channel;
            channelExec.setCommand("ls");
            channelExec.setErrStream(System.err);
            channelExec.connect();

            BufferedReader reader = new BufferedReader(new InputStreamReader(channelExec.getInputStream()));
            String line;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }

//            This part doesn't work. It causes the program to hang.
//            BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(channelExec.getOutputStream()));
//            writer.write("cd Downloads");
//            writer.write("ls");
//            reader = new BufferedReader(new InputStreamReader(channelExec.getInputStream()));
//            while ((line = reader.readLine()) != null) {
//                System.out.println(line);
//            }

            channelExec.disconnect();
            session.disconnect();

            System.out.println("Exit code: " + channelExec.getExitStatus());
        } catch (JSchException | IOException ex) {
            Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

我已尝试使用ChannelExec OutputStream,但这只会导致程序无效,所以我怀疑这不是可行的方法。

我应该添加什么来打印命令cd Downloadsls之后的内容,例如在打印出第一个ls输出后?

1 个答案:

答案 0 :(得分:1)

使用";"分隔您的命令 例如:

String command1="cd mydeploy/tools/Deploy/scripts/; ls -ltr;./conn_testing.ksh";