javascript - FormDataMultiPart files field is missing top directory -


i have java servlet uploads files in folder passed web page. works fine unless top folder contains folders , not files. example, if folder updating looks this:

topfolder +file1 +file2 +subfolder ++file3 ++file4

and choose topfolder upload, works fine , can recreate file structure on target server.

but if topfolder doesn't have files , looks this:

topfolder +subfolder ++file3 ++file4

i cannot recreate structure on target server because topfolder missing output. here code clarify:

map<string, list<formdatabodypart>> fields = multipart.getfields(); (string field : fields.keyset()) {     logger.info("field="+field);     list<formdatabodypart> formdatabodyparts = fields.get(field);     (formdatabodypart part : formdatabodyparts) {         formdatacontentdisposition disposition = part.getformdatacontentdisposition();         string filename = disposition.getfilename();         logger.info("filename="+filename);     } }

the output of first case is:

field=files filename=topfolder/file1 filename=topfolder/file2 filename=topfolder/subfolder/file1 filename=topfolder/subfolder/file2

but output of second case is:

field=files filename=subfolder/file1 filename=subfolder/file2

how make formdatamultipart behave correctly?


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