when uploading a file to the server using FTP, associate it by uploading inputStream as a parameter to the specified path, and inputStream also through the new File (path) to get a File object,
if my data is queried from the table and it is a list, instead of a file that already exists in my local file, how can I write this list in inputStream and upload it directly to the FTP server?
Note: means that I want to ask if the file must exist locally before I can upload the file to the FTP server through the inputStream output stream