通过SSH服务上传文件到LINUX

淡淡的烟草味﹌ 2024-03-30 09:18 63阅读 0赞

通过SSH服务上传文件到LINUX

### 1.添加依赖： ###

<dependency>
    			<groupId>com.jcraft</groupId>
    			<artifactId>jsch</artifactId>
    			<version>0.1.55</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>org.slf4j</groupId>
    			<artifactId>slf4j-api</artifactId>
    			<version>1.7.30</version>
    		</dependency>
    		
    		<dependency>
    			<groupId>commons-io</groupId>
    			<artifactId>commons-io</artifactId>
    			<version>2.8.0</version>
    		</dependency>

### 2.编写工具类： ###

public class SftpUtil {
    	private transient Logger log = LoggerFactory.getLogger(this.getClass());  
        
        private ChannelSftp sftp;  
            
        private Session session;  
        /** FTP 登录用户名*/    
        private String username;  
        /** FTP 登录密码*/    
        private String password;  
        /** 私钥 */    
        private String privateKey;  
        /** FTP 服务器地址IP地址*/    
        private String host;  
        /** FTP 端口*/  
        private int port;  
            
        
        /**  
         * 构造基于密码认证的sftp对象  
         * @param userName  
         * @param password  
         * @param host  
         * @param port  
         */    
        public SftpUtil(String username, String password, String host, int port) {  
            this.username = username;  
            this.password = password;  
            this.host = host;  
            this.port = port;  
        }  
        
        /**  
         * 构造基于秘钥认证的sftp对象 
         * @param userName 
         * @param host 
         * @param port 
         * @param privateKey 
         */  
        public SftpUtil(String username, String host, int port, String privateKey) {  
            this.username = username;  
            this.host = host;  
            this.port = port;  
            this.privateKey = privateKey;  
        }  
        
        public SftpUtil(){}  
        
        /** 
         * 连接sftp服务器 
         * 
         * @throws Exception  
         */  
        public void login(){  
            try {  
                JSch jsch = new JSch();  
                if (privateKey != null) {  
                    jsch.addIdentity(privateKey);// 设置私钥  
                    log.info("sftp connect,path of private key file：{}" , privateKey);  
                }  
                log.info("sftp connect by host:{} username:{}",host,username);  
        
                session = jsch.getSession(username, host, port);  
                log.info("Session is build");  
                if (password != null) {  
                    session.setPassword(password);    
                }  
                Properties config = new Properties();  
                config.put("StrictHostKeyChecking", "no");  
                    
                session.setConfig(config);  
                session.connect();  
                log.info("Session is connected");  
                  
                Channel channel = session.openChannel("sftp");  
                channel.connect();  
                log.info("channel is connected");  
        
                sftp = (ChannelSftp) channel;  
                log.info(String.format("sftp server host:[%s] port:[%s] is connect successfull", host, port));  
            } catch (JSchException e) {  
                log.error("Cannot connect to specified sftp server : {}:{} \n Exception message is: {}", new Object[]{host, port, e.getMessage()});    
            }  
        }    
        
        /** 
         * 关闭连接 server  
         */  
        public void logout(){  
            if (sftp != null) {  
                if (sftp.isConnected()) {  
                    sftp.disconnect();  
                    log.info("sftp is closed already");  
                }  
            }  
            if (session != null) {  
                if (session.isConnected()) {  
                    session.disconnect();  
                    log.info("sshSession is closed already");  
                }  
            }  
        }  
        
        /**  
         * 将输入流的数据上传到sftp作为文件  
         *   
         * @param directory  
         *            上传到该目录  
         * @param sftpFileName  
         *            sftp端文件名  
         * @param in  
         *            输入流  
         * @throws SftpException   
         * @throws Exception  
         */    
        public void upload(String directory, String sftpFileName, InputStream input) throws SftpException{  
            try {    
                sftp.cd(directory);  
            } catch (SftpException e) {  
                log.warn("directory is not exist");  
                sftp.mkdir(directory);  
                sftp.cd(directory);  
            }  
            sftp.put(input, sftpFileName);  
            log.info("file:{} is upload successful" , sftpFileName);  
        }  
        
        /**  
         * 上传单个文件 
         * 
         * @param directory  
         *            上传到sftp目录  
         * @param uploadFile 
         *            要上传的文件,包括路径  
         * @throws FileNotFoundException 
         * @throws SftpException 
         * @throws Exception 
         */  
        public void upload(String directory, String uploadFile) throws FileNotFoundException, SftpException{  
            File file = new File(uploadFile);  
            upload(directory, file.getName(), new FileInputStream(file));  
        }  
        
        /** 
         * 将byte[]上传到sftp，作为文件。注意:从String生成byte[]是，要指定字符集。 
         *  
         * @param directory 
         *            上传到sftp目录 
         * @param sftpFileName 
         *            文件在sftp端的命名 
         * @param byteArr 
         *            要上传的字节数组 
         * @throws SftpException 
         * @throws Exception 
         */  
        public void upload(String directory, String sftpFileName, byte[] byteArr) throws SftpException{  
            upload(directory, sftpFileName, new ByteArrayInputStream(byteArr));  
        }  
        
        /**  
         * 将字符串按照指定的字符编码上传到sftp 
         *   
         * @param directory 
         *            上传到sftp目录 
         * @param sftpFileName 
         *            文件在sftp端的命名 
         * @param dataStr 
         *            待上传的数据 
         * @param charsetName 
         *            sftp上的文件，按该字符编码保存 
         * @throws UnsupportedEncodingException 
         * @throws SftpException 
         * @throws Exception 
         */  
        public void upload(String directory, String sftpFileName, String dataStr, String charsetName) throws UnsupportedEncodingException, SftpException{    
            upload(directory, sftpFileName, new ByteArrayInputStream(dataStr.getBytes(charsetName)));    
        }  
        
        /** 
         * 下载文件  
         * 
         * @param directory 
         *            下载目录  
         * @param downloadFile 
         *            下载的文件 
         * @param saveFile 
         *            存在本地的路径 
         * @throws SftpException 
         * @throws FileNotFoundException 
         * @throws Exception 
         */    
        public void download(String directory, String downloadFile, String saveFile) throws SftpException, FileNotFoundException{  
            if (directory != null && !"".equals(directory)) {  
                sftp.cd(directory);  
            }  
            File file = new File(saveFile);  
            sftp.get(downloadFile, new FileOutputStream(file));  
            log.info("file:{} is download successful" , downloadFile);  
        }  
        /**  
         * 下载文件 
         * @param directory 下载目录 
         * @param downloadFile 下载的文件名 
         * @return 字节数组 
         * @throws SftpException 
         * @throws IOException 
         * @throws Exception 
         */  
        public byte[] download(String directory, String downloadFile) throws SftpException, IOException{  
            if (directory != null && !"".equals(directory)) {  
                sftp.cd(directory);  
            }  
            InputStream is = sftp.get(downloadFile);  
              
            byte[] fileData = IOUtils.toByteArray(is);  
              
            log.info("file:{} is download successful" , downloadFile);  
            return fileData;  
        }  
        
        /** 
         * 删除文件 
         *   
         * @param directory 
         *            要删除文件所在目录 
         * @param deleteFile 
         *            要删除的文件 
         * @throws SftpException 
         * @throws Exception 
         */  
        public void delete(String directory, String deleteFile) throws SftpException{  
            sftp.cd(directory);  
            sftp.rm(deleteFile);  
        }  
        
        /** 
         * 列出目录下的文件 
         *  
         * @param directory 
         *            要列出的目录 
         * @param sftp 
         * @return 
         * @throws SftpException 
         */  
        public Vector<?> listFiles(String directory) throws SftpException {  
            return sftp.ls(directory);  
        }  
    }

### 3.main方法测试运行： ###

public static void main(String[] args) throws SftpException, IOException {  
            SftpUtil sftp = new SftpUtil("sheep", "sheep", "192.168.11.100", 22);
            //登录
            sftp.login();
            //源文件转换成输入流
            File file = new File("/home/sheep/contact.sql");  
            InputStream is = new FileInputStream(file);  
            
            //输出到服务器特定目录
            sftp.upload("/home/sheep/temp", "contact.sql", is); 
            //退出
            sftp.logout();  
     }