通过SSH服务上传文件到LINUX
1.添加依赖：
<!-- https://mvnrepository.com/artifact/com.jcraft/jsch -->
<dependency>
<groupId>com.jcraft</groupId>
<artifactId>jsch</artifactId>
<version>0.1.55</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.slf4j/slf4j-api -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.30</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<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();
}