Java EE 8 Cookbook

The asynchronous servlet

And then we implement our asynchronous servlet:

@WebServlet(urlPatterns = "/AsyncServlet", asyncSupported = true)public class AsyncServlet extends HttpServlet {    private static final long serialVersionUID = 1L;    @Override    protected void doGet(HttpServletRequest request,            HttpServletResponse response) throws ServletException,             IOException {                long startTime = System.currentTimeMillis();        System.out.println("AsyncServlet Begin, Name="                + Thread.currentThread().getName() + ", ID="                + Thread.currentThread().getId());        String time = request.getParameter("timestamp");        AsyncContext asyncCtx = request.startAsync();        asyncCtx.start(() -> {            try {                Thread.sleep(Long.valueOf(time));                long endTime = System.currentTimeMillis(); long timeElapsed ...