< H1 > for example, how to ensure that the code will not be garbled when the FTP server code is uncertain < / H1 >

We use jsch to connect to SFTP in the project, but using ls to get the Chinese file names in the file list is garbled, and if the parameter is Chinese file name, we will directly throw an exception no such file

.

the code is as follows

package com.zx.idc.common.ftp.sftp;

import com.jcraft.jsch.ChannelSftp;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.SftpException;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Properties;
import java.util.Vector;
import java.util.stream.Collectors;

/**
 * @author rxliuli
 */
public class SftpTest {
    private final Logger log = LoggerFactory.getLogger(getClass());

    @Test
    public void ls() {
        final JSch jSch = new JSch();
        ChannelSftp sftp = null;
        Session session = null;
        try {
            session = jSch.getSession("rxliuli", "localhost", 22);
            session.setPassword("123456");
            final Properties properties = new Properties();
            properties.put("StrictHostKeyChecking", "no");
            session.setConfig(properties);
            session.connect();
            log.info("JSch open ssh session successful: {}", session);

            sftp = (ChannelSftp) session.openChannel("sftp");
            sftp.connect();
            /*
             GBK 
            com.jcraft.jsch.SftpException: The encoding can not be changed for this sftp server.
             */
            sftp.setFilenameEncoding("UTF-8");

            log.info("Sftp connection successful: {}", sftp);

            /*
            :
            TestSftpDir
            .xsd
            
             */
            final Vector<ChannelSftp.LsEntry> list = sftp.ls("/");
            log.info("list: \n{}", list.stream().map(ChannelSftp.LsEntry::getFilename).collect(Collectors.joining("\n")));
            /*
            :
            com.jcraft.jsch.SftpException: No such file
             */
            try {
                sftp.ls("/");
            } catch (SftpException sftpException) {
                sftpException.printStackTrace();
            }
            /*
            :
            com.jcraft.jsch.SftpException: No such file
             */
            try {
                sftp.ls(new String("/".getBytes("GBK"), "ISO-8859-1"));
            } catch (SftpException sftpException) {
                sftpException.printStackTrace();
            }
        } catch (Throwable e) {
            log.error("sftp operation failed: {}", e);
            throw new RuntimeException(e);
        } finally {
            if (sftp != null && sftp.isConnected()) {
                sftp.disconnect();
            }
            if (session != null && session.isConnected()) {
                session.disconnect();
            }
        }
    }
}

the solutions that have been tried are:

• use sftp.setFilenameEncoding ("UTF-8"); set the file name encoding to UTF-8 : invalid measured
• use sftp.setFilenameEncoding ("GBK"); : throw an exception com.jcraft.jsch.SftpException: The encoding can not be changed for this sftp server.
• use sftp.ls (new String ("/ test Chinese directory" .getBytes ("GBK"), "ISO-8859-1") encode the file name, and throw an exception com.jcraft.jsch.SftpException: No such file

has anyone ever encountered this problem?