Лабораторная работа: Разработка Web–приложений с применением Java Servlet-технологии

Здесь мы из вызывающей страницы получаем параметры firstname и lastname. В сервлете:

Enumeration e = request.getParameterNames(); ? ???????? ????? ???? ?????????? ???????, ????? ????????? ????? ?????? ? ???????, ? ?? ??? ???, ???? ????????? ???? ?? ?????????, ???????? ??? ?????????String name = (String) e.nextElement();????????, ???????? ?????????, ???? ???String value = request.getParameter(name);??????? ??? ?? ??????out.println (name + ?=? + value);???????? ?????? ?????? ? ????????:import java.io.*;import java.util.*;import javax.servlet.*;import javax.servlet.http.*;public class SessionExample extends HttpServlet {public void doGet (HttpServletRequest request, HttpServletResponse response)throws IOException, ServletException{response.setContentType (?text/html?);PrintWriter out = response.getWriter();HttpSession session = request.getSession(true); // ???????? ??????? ? ??????String dataName = request.getParameter (?dataName?);String dataValue = request.getParameter (?dataValue?);session.setAttribute (dataName, dataValue); // ??????? ???????? ????????? ??????Enumeration e = session.getAttributeNames();while (e.hasMoreElements()) {String name = (String) e.nextElement();String value = session.getAttribute(name).toString();out.println (name + ?=? + value);}}}??????? ???????????? Get‑??????, ????????? ???????? ?????????String dataName = request.getParameter (?dataName?);String dataValue = request.getParameter (?dataValue?);? ????????? ??? ? ??????session.setAttribute (dataName, dataValue);????? ???????? ????? ???? ????????? ??????:Enumeration e = session.getAttributeNames();? ????? ?? ??????? ?? ????????String value = session.getAttribute(name).toString();out.println (name + ?=? + value);