import java.io.*; import javax.servlet.*; import javax.servlet.http.*; import java.util.Date; public class SessionTest4 extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException{ response.setContentType("text/html; charset=Shift_JIS"); PrintWriter out = response.getWriter(); HttpSession session = request.getSession(false); out.println(""); out.println(""); out.println("セッションテスト"); out.println(""); out.println(""); if (session == null){ out.println("

セッションを開始します

"); session = request.getSession(true); long createTime = session.getCreationTime(); Date createDate = new Date(createTime); out.println("

"); out.println("セッション開始時間:" + createDate + "
"); out.println("

"); }else{ out.println("

セッションは開始されています

"); long createTime = session.getCreationTime(); Date createDate = new Date(createTime); long accessTime = session.getLastAccessedTime(); Date accessDate = new Date(accessTime); out.println("

"); out.println("セッション開始時間:" + createDate + "
"); out.println("最終アクセス時間 :" + accessDate); out.println("

"); } out.println("再表示"); out.println(""); out.println(""); } }