java遠程調用ssh

業務系統部署在docker容器中，須要調用fastfdfs服務器命令上傳到服務器中，並在系統中記錄路徑
本文引用jsch

 

 <!-- https://mvnrepository.com/artifact/com.jcraft/jsch -->
        <dependency>
            <groupId>com.jcraft</groupId>
            <artifactId>jsch</artifactId>
            <version>0.1.55</version>
        </dependency>

 

   /**
     * 鏈接到指定的IP
     *
     * @throws JSchException
     */
    public void connect() throws JSchException {
        jsch = new JSch();
        jsch.addIdentity(keyFile);
        session = jsch.getSession(user, host, 22);
        //session.setPassword(passwd);若是用密碼模式
        java.util.Properties config = new java.util.Properties();
        config.put("StrictHostKeyChecking", "no");
        session.setConfig(config);
        session.connect();
    }

 

public String execCmd(String cmd) {
        String command = cmd;
        BufferedReader reader = null;
        Channel channel = null;
        try {

            channel = session.openChannel("exec");
            ((ChannelExec) channel).setCommand(command);
            channel.setInputStream(null);
            ((ChannelExec) channel).setErrStream(System.err);

            channel.connect();
            InputStream in = channel.getInputStream();
            reader = new BufferedReader(new InputStreamReader(in, Charset.forName(charset)));

            String buf = "";
            String cmdResult = "";
            while ((buf = reader.readLine()) != null) {
                String temp = buf;
                cmdResult = cmdResult + temp;
            }
            return cmdResult;
        } catch (IOException e) {
            LOGGER.info(e.getMessage());
            return "";
        } catch (JSchException e) {
            LOGGER.info(e.getMessage());
            return "";
        } finally {
            try {
                reader.close();
            } catch (IOException e) {
                LOGGER.info(e.getMessage());
            }
            channel.disconnect();
            //session.disconnect();

        }

 

 

//上傳命令
            //將文件保存到fastfdfs文件服務器中 返回 group1/M01/1D/E3/rBADlVcHC1OAdGkQAABDEJGMKGI112.png
            String upCmd = "fdfs_upload_file " + fdfsConfig + " \"" + ftpDir + fileName + "\"";
            String fileId = sshUtils.execCmd(upCmd);
            if (fileId.contains("<config_file>")) {
                return;
            }
            logger.info("upload ftp File result={}", fileId);
            //刪除文件
            String delCmd = "rm -f \"" + ftpDir + fileName + "\"";
            sshUtils.execCmd(delCmd);

 

 

 證書生成

 

 

 

 

 

 

 

 

 

 

 

 

[root@172-16-3-82 ~]# cd .ssh/
[root@172-16-3-82 .ssh]# 
[root@172-16-3-82 .ssh]# 
[root@172-16-3-82 .ssh]# ls
authorized_keys  authorized_keys.bak  id_rsa_1024.pub
[root@172-16-3-82 .ssh]# 
[root@172-16-3-82 .ssh]# 
[root@172-16-3-82 .ssh]# 
[root@172-16-3-82 .ssh]# rz -y
. waiting to receive.**B0100000023be50
[root@172-16-3-82 .ssh]# ls
authorized_keys  authorized_keys.bak  id_rsa_1024.pub  id_rsa_test.pub
[root@172-16-3-82 .ssh]# 
[root@172-16-3-82 .ssh]# cat id_rsa_test.pub >>authorized_keys