Java Servlet Get Post Body

This is how to get the content of the Post body in a HTTP Request:

protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {        BufferedReader reader = req.getReader();        StringBuilder inputStringBuilder = new StringBuilder();        String line = null;        while ((line = reader.readLine()) != null) {                inputStringBuilder.append(line);        } }