How to upload and download a directory from FTP server in java?

I am working in a project in which is is require to upload and download a directory and their al开发者_JAVA技巧l the file and folder in java .and I also need to know that uploding and downloading status means how much percent the folder to which I am uploading has been uploaded or downloaded.

You may want to look at the FTPClient class of commons-net as well.

A search for "java ftp client" on google reveals edtFTPj.

Just to throw one more library at you... you could also try Apache Commons VFS. It gives you access to tons of different file systems including FTP.