java - File issues with threading in tomcat -



java - File issues with threading in tomcat -

i have tomcat server , have controller writes in file, info coming in request. uncertainty whether multiple threads within server can write same file @ same time , cause issues?

my requirement requests appends info same file. not using threading end.

my code follows:

file file = new file(filename); seek { if(!file.exists()) { file.createnewfile(); } inputstream inputstream = request.getinputstream(); filewriter filewriter = new filewriter(filename,true); bufferedwriter bufferwriter = new bufferedwriter(filewriter); bufferwriter.write(ioutils.tostring(inputstream)); bufferwriter.flush(); bufferwriter.close(); }

there standard solution such issue.

you have create singleton class, shared between threads.

this singleton have blockingqueue (e.g. linkedblockingqueue) in threads set messages writing single file.

this singleton self thread , within run() method take values queue , sequentially write needed file.

java tomcat servlets spring-mvc

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