Question

I need to get the web container path using java, is there any method for that? I need to use it using JSP or Servlet to get a file path.

Answer 1

I need to use it using JSP or Servlet to get a file path.

So the file is stored in the public webcontent of the WAR? Use ServletContext#getRealPath().

String relativeWebPath = "/file.jpg";
String absoluteDiskPath = getServletContext().getRealPath(relativeWebPath);
File file = new File(absoluteDiskPath);
InputStream input = new FileInputStream(file); // I guess this is what you want.
// ...

Note that this only works when the WAR is expanded by the container. Otherwise better use ServletContext#getResourceAsStream() if all you really want is to get an InputStream of it.

String relativeWebPath = "/file.jpg";
InputStream input = getServletContext().getResourceAsStream(relativeWebPath);
// ...

See also:

• getResourceAsStream() vs FileInputStream