java ee - J2EE and virtual filesystem for file storage -


i'm struggling problem now

"how store files on filesystem in j2ee web application"

it said, portability reasons accessing fs @ least not recommended.

i'd know other possibilities, make more portable , not performance heavy in mean time.

i can think of following ways

  • use directly fs(temp files, webapp folder etc.) not portable - maybe user dir
  • use virtual fs(apache commons vfs) - adding possibility switch fs impl.
  • store files in db - lucene index files, looses sense
  • jca - overcomplicated , need adapter every fs used
  • jcr - idea use it(apache jackrabbit)

where store .properties files, lucene indexes, user files, user pictures? if using different environments application in development pipeline(openshift, heroku, web containers, application servers)


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