Java (21) 썸네일형 리스트형 날짜api https://youtu.be/oRQ3MUxzp8s?list=PLieE0qnqO2kTyzAlsvxzoulHVISvO8zA9 package temp1; import java.util.Calendar; public class MainClass { public static void main(String[] args) { Calendar calendar = Calendar.getInstance(); int year = calendar.get(Calendar.YEAR); int month = calendar.get(Calendar.MONTH) + 1; int day = calendar.get(Calendar.DAY_OF_MONTH); int hour = calendar.get(Calendar.HOUR_OF_DAY.. 싱글턴 패턴 예제 클래스 하나에 객체를 유일하게 하나만 생성하여, 모든 곳에서 하나의 객체만 접근할 수 있도록 함 전역의 개념으로 객체를 사용할 수 있게 됨 package temp1; public class SingleTonClass { private static SingleTonClass singleTonClass = new SingleTonClass(); public int i = 10; private SingleTonClass() { } public static SingleTonClass getSingleTonClass() { if (singleTonClass == null) { singleTonClass = new SingleTonClass(); } return singleTonClass; } public int .. EL(Expression Language) spag.jsp ${result} ${names[0]} ${names[1]} ${notice.id} ${notice.title} Spag.java package com.newlectrue.web; import java.io.IOException; import java.util.HashMap; import java.util.Map; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; impo.. jsp mvc model2 spag.jsp Spag.java package com.newlectrue.web; import java.io.IOException; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; @WebServlet("/spag") public class Spag extends HttpServlet { @Overri.. JSP 내장 객체 https://youtu.be/IWQlKJj3HVk?list=PLq8wAnVUcTFVOtENMsujSgtv2TOsMy8zd doGet(), doPost() calculator.html calculator.java package com.newlectrue.web; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; @WebServlet("/calculator") public class Calculator extends HttpServlet { //@Override //protecte.. 쿠키 메소드 - setPath(), setMaxAge() calc2.java package com.newlectrue.web; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletContext; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.serv.. Cookie와 상태 관리 Calc2.java package com.newlectrue.web; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletContext; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.Cookie; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.serv.. 이전 1 2 3 다음
