Day05(cookie01)

01makeCookie.jsp의 코드내용

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<%request.setCharacterEncoding("UTF-8"); %>
<%@include file="/WEB-INF/inc/header.jsp" %>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<%@include file="/WEB-INF/inc/top.jsp" %>

<%
	Cookie cookie = new Cookie("kim", "donggil");
	response.addCookie(cookie);
%>

</body>
</html>

01viewCookie.jsp의 코드내용

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<%request.setCharacterEncoding("UTF-8"); %>
<%@include file="/WEB-INF/inc/header.jsp" %>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<%@include file="/WEB-INF/inc/top.jsp" %>

<%
	Cookie[] cookies = request.getCookies();
	if(cookies != null){
		for(Cookie cookie : cookies){
			if(cookie.getName().equals("kim")){
				out.print("쿠키 이름 : " + cookie.getName() + "<br>");
				out.print("쿠키 값 : " + cookie.getValue() + "<br>");
			}
		}
	}
%>

</body>
</html>

01modifyCookie.jsp의 코드내용

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<%request.setCharacterEncoding("UTF-8"); %>
<%@include file="/WEB-INF/inc/header.jsp" %>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<%@include file="/WEB-INF/inc/top.jsp" %>

<!-- 
	쿠키의 기본 유효시간 : -1 //브라우저 껏다 키면 사라짐
	쿠키의 기본 경로 : 현재폴더
 -->
 
 <% //kim 쿠키
 	Cookie[] cookies = request.getCookies();
 	if(cookies != null){
 		for(Cookie cookie : cookies){
 			if(cookie.getName().equals("kim")){
 				cookie.setValue("changhoon");
 				response.addCookie(cookie);
 				//쿠키는 변경사항이 있을때마다 response에 담아서 응답해줘야한다.
 				//같은 이름의 쿠키를 새로 생성해서 전달하라
 				//Cookie cook = new Cookie("kim", "changhoon");
 				//response.addCookie(cook);
 			}
 		}
 	}
 %>

</body>
</html>

01delete.jsp의 코드내용

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<%request.setCharacterEncoding("UTF-8"); %>
<%@include file="/WEB-INF/inc/header.jsp" %>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<%@include file="/WEB-INF/inc/top.jsp" %>

<!-- 삭제하는 메소드 따로 없음. setMaxAge(0)으로 -->
<%
	Cookie[] cookies = request.getCookies();
	if(cookies != null){
		for(Cookie cookie : cookies){
			if(cookie.getName().equals("kim")){
				cookie.setMaxAge(0);
				response.addCookie(cookie);
				// 새로 생성해서 전달하는 방법도 있음
			}
		}
	}
%>

</body>
</html>

저작자표시

'📆 Today I Learned(개발언어학습) > JSP' 카테고리의 다른 글

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