Java tutorial
import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class Sender extends HttpServlet { public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, java.io.IOException { /* * if the servlet tries to access a resource and finds out that the * client is not authorized to access it - "401 Unauthorized" */ //response.sendError(401,"You are not authorized to view the requested // component"); /* * if the servlet tries to access a resource that is forbidden for this * client and there is no further information on it - "403 Forbidden" */ response.sendError(403); /* * if the servlet tries to access a resource that is not found given the * client's provided URL - "404 Not Found" */ //response.sendError(404); } public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, java.io.IOException { doPost(request, response); } }