개발환경

• Spring FrameWork

적용

1. 라이브러리 추가
pom.xml 파일 내용 추가하여 라이브러리 받는다.

<!-- FTP (sftp,ssh) -->
        <dependency>
            <groupId>com.jcraft</groupId>
            <artifactId>jsch</artifactId>
            <version>0.1.50</version>
        </dependency>

1. JAVA 소스 작성

        String filePath = "/home/test.tar"; //결과물 
        
        File tarfile = new File(filePath);
        final OutputStream os = new FileOutputStream(tarfile);
        TarOutputStream tos = new TarOutputStream(os);
        JSch jsch = new JSch();
        Session sftpSession = jsch.getSession(<접속Id>,<접속Ip>,22);
        sftpSession.setPassword(<접속pw>);
        
        java.util.Properties config = new java.util.Properties();
        config.put("StrictHostKeyChecking", "no");
        sftpSession.setConfig(config);
        sftpSession.connect();
        
 
        String targetDir = <압축할 폴더 경로>;
        Channel channel = sftpSession.openChannel("sftp");
        channel.connect();
        ChannelSftp channelSftp = (ChannelSftp) channel;
        Vector<ChannelSftp.LsEntry> fileAndFolderList = channelSftp.ls(targetDir);
        for(ChannelSftp.LsEntry item : fileAndFolderList){
            if(!item.getAttrs().isDir()){ // 폴더는 다운 안받을거임, 폴더도 압축할경우 메서드로 뺀뒤 사용
                            
                InputStream is = channelSftp.get(targetDir+item.getFilename());
                byte[] buff = null;
                buff = IOUtils.toByteArray(is);
                int bufferSize = buff.length;
                TarEntry entry = new TarEntry(item.getFilename());
                
                entry.setSize(bufferSize);
                tos.putNextEntry(entry);
                tos.write(buff,0,bufferSize);
                tos.closeEntry();
                is.close();
            }
        }
        if (channelSftp != null)
            channelSftp.disconnect();
        if (channel != null)
            channel.disconnect();
        if (session != null)
            sftpSession.disconnect();
        tos.close();
        os.close();