DBILITY

로그인 실습 UI에 PollListener를 등록하고 해 보았다. UI Polling disable처리는 -1을 argument로 넘기면 된다. package com.dbility.vseminar.vaadin_seminar; import java.time.LocalDateTime; import java.time.format.DateTimeFormatter; import java.util.Set; import javax.servlet.annotation.WebServlet; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.dbility.vseminar.vaadin_seminar.util.RandomUtil; import com.vaa..

httpSession(?)를 사용해 봤다면, 별다른 어려움은 없다. package com.dbility.vseminar.vaadin_seminar.util; import java.util.Random; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public class RandomUtil { private static final Logger logger = LoggerFactory.getLogger(RandomUtil.class); private static final String AB = "0123456789abcdefghijklmnopqrstuvwxyz"; private static final int LEN = 20; private static..