ServletFileUpload#parseRequest(request) returns an empty list

Question

I have a client application in Android which uses HttpURLConnection to send files to the server. The server uses the Apache Commons FileUpload API to parse the

Answer 1

I had this same problem after trying I find that it was incompatibility of libraries, library apache server with fileupload library, so I remove the library and imported from the library server Apache.

imports:
import org.apache.tomcat.util.http.fileupload.FileItem;
import org.apache.tomcat.util.http.fileupload.disk.DiskFileItemFactory;
import org.apache.tomcat.util.http.fileupload.servlet.ServletFileUpload;

sorry my english