SFTP获取文件夹内的文件名，文件大小，文件修改时间

SFTP获取文件夹内的文件名，文件大小，文件修改时间

使用SFTP协议获取服务上的指定路径的文件夹下的所有文件名，文件大小，文件的修改时时间等。

工具类

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/**
 * @program: yc-bigdata-web
 * @description: SFTP协议读取文件夹下的内容
 * @author: 
 * @create: 2021-01-20 10:55
 **/
public class SFTPUtil {
    private ChannelSftp sftp;
    private Session session;
    private String username;
    private String password;
    private String privateKey;
    private String host;
    private int port;

    public SFTPUtil(String username, String password, String host, int port) {
         = username;
         = password;
         = host;
         = port;
    }

    public SFTPUtil(String username, String host, int port, String privateKey) {
         = username;
         = host;
         = port;
         = privateKey;
    }

    public SFTPUtil(){}

    public ChannelSftp getChannelSftp() {
        return ;
    }

    public void login(){
        try {
            JSch jsch = new JSch();
            if (privateKey != null) {
                (privateKey);// 设置私钥
            }

            session = (username, host, port);

            if (password != null) {
                (password);
            }
            Properties config = new Properties();
            ("StrictHostKeyChecking", "no");

            (config);
            ();

            Channel channel = ("sftp");
            ();

            sftp = (ChannelSftp) channel;
        } catch (JSchException e) {
            ();
        }
    }

    public void logout(){
        if (sftp != null) {
            if (()) {
                ();
            }
        }
        if (session != null) {
            if (()) {
                ();
            }
        }
    }

    public ArrayList<String> listFiles(String dir) throws SftpException{
        ArrayList<String> files = new ArrayList<String>();
        (dir);
        Vector<String> lss = ("*");
        for (int i = 0; i < (); i++) {
            Object obj = (i);
            if (obj instanceof ) {
                LsEntry entry = (LsEntry) obj;
                if (true && !().isDir()) {
                    (());
                }
                if (true && ().isDir()) {
                    if (!().equals(".") && !().equals("..")) {
                        (());
                    }
                }
            }
        }
        return files;
    }

    public void download(String fileName, String savedir) throws SftpException, IOException{
        InputStream is = (fileName);

        FileOutputStream out = new FileOutputStream(new File(savedir + "\\" +fileName));
        (is,out);
        ();
        ();
    }

    public void delete(String fileName) throws SftpException {
        (fileName);
    }

    public long getFileSize(String srcSftpFilePath) {
        long fileSize;//文件大于等于0则存在
        try {
            SftpATTRS sftpATTRS = (srcSftpFilePath);
            fileSize = ();
        } catch (Exception e) {
            fileSize = -1;//获取文件大小异常
            if (().toLowerCase().equals("no such file")) {
                fileSize = -2;//文件不存在
            }
        }
        return fileSize;
    }

    public String getLastModifiedTime(String srcSftpFilePath) 
        try {
            SftpATTRS sftpATTRS = (srcSftpFilePath);
            int mTime = ();
            Date lastModified = new Date(mTime * 1000L);
            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            String time = (lastModified);
            return time;
        } catch (Exception e) {
           ();
        }
        return null;
    }

}

方法的调用

 SFTPUtil sftp = new SFTPUtil(username, pwd, ip, port);
            ();
            ArrayList<String> fileList = null;
            try {
                fileList = (path);
                for (int i = 0; i < (); i++) {
                    HashMap<String, Object> fileMessageMap = new HashMap<>();
                    String fileName = (i);

                    //获取文件大小
                    long size = (path + fileName);
                    String fileSize = (size);

                    //获取文件后缀名
                    String fileDOC = ((".") + 1);

                    //获取文件修改时间
                    String lastModifiedTime = (path + fileName);

                    ("fileName", fileName);
                    ("fileSize", fileSize);
                    ("fileDOC",fileDOC);
                    ("lastModifiedTime",lastModifiedTime);

                    (fileMessageMap);

                }
                ();
            } catch (SftpException e) {
                ();
            }
            return list;
        }
        return null;