Did the PrintWriter work successfully?

Question

Java

Good day.
There is a servlet:

protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    request.setCharacterEncoding("UTF-8");
    response.setCharacterEncoding("UTF-8");
    PrintWriter out = response.getWriter();
    out.println("<some html>");
    out.close();
    }

Let's say this situation, during the execution of out.println(""); the Internet is cut off on the machine whose browser accepts "
Is it possible to handle this situation somehow? What exception should I catch? Tried to catch IOException, no result. out.checkError
()
from which HttpServletRequest came already chopped off?

Answer 1

It is forbidden.
If the server sent an HttpServletResponse, then your code worked correctly and no exceptions will occur. Next, your some html goes over the network via the HTTP protocol (the server has already "fired back" and forgot about the request it just answered). The protocol specification does not imply sending messages to the server that data has been successfully received.