1 2 import java.io.IOException; 3 import java.io.PrintWriter; 4 5 import javax.servlet.ServletConfig; 6 import javax.servlet.ServletException; 7 import javax.servlet.annotation.WebServlet; 8 import javax.servlet.http.HttpServlet; 9 import javax.servlet.http.HttpServletRequest; 10 import javax.servlet.http.HttpServletResponse; 11 12 @WebServlet("/") 13 public class app extends HttpServlet 14 { 15 @Override doGet(HttpServletRequest request, HttpServletResponse response)16 public void doGet(HttpServletRequest request, HttpServletResponse response) 17 throws IOException, ServletException 18 { 19 response.setIntHeader("X-Set-Int", 1); 20 response.addHeader("X-Get-Int", Integer.toString(request.getIntHeader("X-Header"))); 21 } 22 } 23