Day07(Expression Language)

2021. 10. 13. 17:55ยท๐Ÿ“† Today I Learned(๊ฐœ๋ฐœ์–ธ์–ดํ•™์Šต)/JSP

01el.jsp์˜ ์ฝ”๋“œ๋‚ด์šฉ

<%@page import="com.study.login.vo.UserVO"%>
<%@ 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" %>
<hr>
<%
	String koreatech="koreatech";
	UserVO user = new UserVO("gks", "ํ•œ", "1234", "๋ฐฅ");
	
	request.setAttribute("koreatech", koreatech);
	session.setAttribute("user", user);
%>
${koreatech } <br> <%=koreatech %>
${user } <br> <%=user %>
</body>
</html>

EL (Expression Language ํ‘œํ˜„์–ธ์–ด  ${ } )

  • ํ‘œํ˜„์–ธ์–ด๋Š” ๊ฐ’์„ ํ‘œํ˜„ํ•˜๋Š” ๋ฐ ์‚ฌ์šฉํ•˜๋Š” ์Šคํฌ๋ฆฝํŠธ ์–ธ์–ด๋กœ, JSP์˜ ์Šคํฌ๋ฆฝํŠธ ์š”์†Œ๋ฅผ ๋ณด์™„ํ•˜๋Š” ์—ญํ• ์„ ํ•œ๋‹ค.
  • JSP์˜ ๋„ค ๊ฐ€์ง€ ๊ธฐ๋ณธ ๊ฐ์ฒด๊ฐ€ ์ œ๊ณตํ•˜๋Š” ์˜์—ญ์˜ ์†์„ฑ ์‚ฌ์šฉ
  • ๊ฐ์ฒด์— set๋œ ๋ฐ์ดํ„ฐ๋ฅผ ์‚ฌ์šฉ๊ฐ€๋Šฅ.
    ๊ฐ์ฒดํƒ์ƒ‰์ˆœ์€ pageContext, request, session, application
  • ์ˆ˜์น˜ ์—ฐ์‚ฐ, ๊ด€๊ณ„ ์—ฐ์‚ฐ, ๋…ผ๋ฆฌ ์—ฐ์‚ฐ์ž ์ œ๊ณต
  • ์ž๋ฐ” ํด๋ž˜์Šค ๋ฉ”์„œ๋“œ ํ˜ธ์ถœ ๊ธฐ๋Šฅ ์ œ๊ณต
  • ์ฟ ํ‚ค, ๊ธฐ๋ณธ ๊ฐ์ฒด์˜ ์†์„ฑ ๋“ฑ JSP๋ฅผ ์œ„ํ•œ ํ‘œํ˜„ ์–ธ์–ด์˜ ๊ธฐ๋ณธ ๊ฐ์ฒด ์ œ๊ณต
  • ๋žŒ๋‹ค์‹์„ ์ด์šฉํ•œ ํ•จ์ˆ˜ ์ •์˜์™€ ์‹คํ–‰
  • ์ŠคํŠธ๋ฆผ API๋ฅผ ํ†ตํ•œ ์ปฌ๋ ‰์…˜ ์ฒ˜๋ฆฌ
  • ์ •์  ๋ฉ”์„œ๋“œ ์‹คํ–‰

์ €์ž‘์žํ‘œ์‹œ (์ƒˆ์ฐฝ์—ด๋ฆผ)

'๐Ÿ“† Today I Learned(๊ฐœ๋ฐœ์–ธ์–ดํ•™์Šต) > JSP' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€

Day07(el) ์ปฌ๋ ‰์…˜  (0) 2021.10.13
Day07(el) ์‚ฌ์น™์—ฐ์‚ฐ, ๋ฌธ์ž์—ด, ๋น„๊ต์—ฐ์‚ฐ์ž  (0) 2021.10.13
Day06(session login)  (0) 2021.10.12
Day06(session = get,set,remove)  (0) 2021.10.12
Day06(session)  (0) 2021.10.12
'๐Ÿ“† Today I Learned(๊ฐœ๋ฐœ์–ธ์–ดํ•™์Šต)/JSP' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€
  • Day07(el) ์ปฌ๋ ‰์…˜
  • Day07(el) ์‚ฌ์น™์—ฐ์‚ฐ, ๋ฌธ์ž์—ด, ๋น„๊ต์—ฐ์‚ฐ์ž
  • Day06(session login)
  • Day06(session = get,set,remove)
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    ์ดํด๋ฆฝ์Šค ์˜ค๋ฒ„๋ผ์ด๋”ฉ ๋ฉ”์†Œ๋“œ ์ž๋™ ์ƒ์„ฑ ๊ธฐ๋Šฅ
    JAVA๋ฌธ์ž์—ด์ž๋ฅด๊ธฐ
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  • hELLOยท Designed By์ •์ƒ์šฐ.v4.10.3
JinSeong
Day07(Expression Language)
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