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How can I write on a file having its URL such as /WebContent/Database/myFile.json from a Servlet?

Constraint: I can't use absolute paths to write on this file.

Additional info: the servlet receives a string as a POST parameter, then her should write this string on a file located in the same servlet context.

BalusC
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shogitai
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  • Should it be a permanent file or a temporary file? In any case, this answer should contain sufficient hints: http://stackoverflow.com/q/31255366 – BalusC Apr 06 '16 at 18:13

1 Answers1

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Update It is a very bad idea to write files to the servlets context, see this answer from @BalusC.

Not recommended But here is how you can get the absolute path for this context relative path

ServletContext context = request.getSession().getServletContext();
String relPath = "/WebContent/Database/myFile.json";
String absPath = context.getRealPath(relPath);
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gustf
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