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    • 22. JSTL
      개발자 수업/JSP 2021. 12. 15. 00:43

      1. 커스텀 태그 (Custom Tag)
          1) 액션 태그나 표현 언어를 사용하더라도 조건식이나 반복문 등의 자바 코드를 제거하기 위해 도입된 기능

      2. 커스텀 태그 종류
          1) JSTL(JSP Standard Tag Library)
              - 라이브러리 따로 설치해서 사용함
          2) 개발자가 만든 커스텀 태그
              - 스프링 프레임워크에서 미리 만들어서 제공

      3. 표준 태그 라이브러리
          1) 가장 많이 사용되는 태그를 표준화하여 라이브러리로 제공
              - Core 태그 : 변수 선언, 조건문/반복문, URL 처리
              - Formatting 태그 : 숫자, 날짜, 시간 포맷 지정
              - XML 태그 : XML 파싱
              - Function 태그 : 컬렉션 처리, 문자열 처리
              - SQL 태그 : DB 연결 및 쿼리 실행

      4. Core 태그 라이브러리
          1) 사용 전 반드시 taglib 디렉티브 태그를 선언해야 함
              <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
          2) set, remove, if, choose, forEach, forTokens, import, redirect, url, out, catch
              - <c:set> 형식
                  - <c:set var="변수 이름" value="변수 값" scope=""/>
                  - <c:set> 태그로 빈 속성이름 줄여서 사용할 수 있음

              - <c:remove> 형식
                  - <c:remove var="변수 이름" scope=""/>
              - <c:if> 형식
                  - <c:if test="${조건식 }" var="변수 이름(조건식의 결과값을 저장)" scope="">
                      ...
                    </c:if>
              - <c:choose> 형식 (switch문 기능)
                  - <c:choose>
                  <c:when test="조건식1">본문내용</c:when>
                  <c:when test="조건식2">본문내용</c:when>
                      ...
                  <c:otherwise>본문내용n</c:otherwise>
                    </c:choose>
              - <c:forEach> 형식
                  - <c:forEach var="반복할 변수 이름" 
                               items="반복할 객체 이름"
                               begin="반복 시작값" 
                               end="반복 마지막값" 
                               step="한 번 반복할 때마다 반복 변수를 증가(시킬) 값"
                               varStatus="반복상태 변수 이름(속성)">
                                          index : items에서 정의한 항목을 가리키는 index (0부터 시작)
                                          count : 몇 번째 반복인지 나타냄 (1부터 시작)
                                          first : 첫 번째 반복을 나타냄
                                          last : 마지막 반복을 나타냄
                                          (예:loop) 
                    </c:forEach>
              - <c:url> 형식
                  - <c:url var="url이 저장된 변수 이름" value="url경로" scope="">
                  [<c:param name="매개변수이름" value="전달값"/>]
                    </c:url>
              - <c:redirect> 형식
                  - response.sendRedirect() 기능을 대체함
                  - <c:redirect url="redirect할 url">
              [<c:param name="매개변수 이름" value="전달값"/>]
                </c:redirect>
              - <c:out> 형식
                  - 화면에 지정한 값을 출력하는 기능
                  - <c:out value="출력할 값" default="기본값" escapeXml="boolean값"/>

       

      5. 국제화(다국어, Formatting) 태그 라이브러리
          1) 국가별로 다양한 언어, 날짜, 시간, 숫자 형식을 설정할 때 사용
          2) <%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
          3) 숫자 포맷
              - <fmt:formatNumber>
                  - <fmt:formatNumber value="출력할 숫자" groupingUsed="세 자리마다 콤마 출력여부 결정, 기본값 true"
              type="출력 양식 설정, percent, currency, number" var="출력할 숫자를 변수에 저장함" pattern="출력할 숫자의 양식을 패턴으로 지정"/>
              - <fmt:parseNumber>
                  - <fmt:parseNumber value="파싱할 문자열" pattern="패턴" var="변수 설정" integerOnly="정수만 파싱"/>
             날짜 포맷
              - <fmt:formatDate>
                  - <fmt:formatDate value="출력할 날짜" type="출력 양식 - date, time, both"
              dataStyle="날짜 스타일 - default, short, medium, long, full"
              timeStyle="시간 스타일 - default, short, medium, long, full"/>
             타임존 설정
              - <fmt:timeZone>
             로케일 설정
              - <fmt:setLocale>

       

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!-- core 태그 라이브러리를 사용하기 위해서 반드시 선언해야 함 -->
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
	request.setCharacterEncoding("utf-8");
%>
<!-- <c:set> 태그 이용해 변수 선언함 value 속성에는 EL 사용해서 초기화 -->
<c:set var="id" value="ezen700" scope="page"/>
<c:set var="pwd" value="0311" scope="page"/>
<c:set var="name" value="${'이순신' }" scope="page"/>
<c:set var="age" value="${30 }" scope="page"/>
<c:set var="height" value="${180 }" scope="page"/>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>회원 정보 출력</title>
</head>
<body>
	<table border="1" align="center">
		<tr align="center" bgcolor="#99ccff">
			<td width="7%"><b>아이디</b></td>
			<td width="7%"><b>비밀번호</b></td>
			<td width="7%"><b>이름</b></td>
			<td width="7%"><b>나이</b></td>
			<td width="7%"><b>키</b></td>
		</tr>
		<tr align="center">
			<td>${id }</td>			<!-- EL로 변수에 바로 접근하여 값 출력 -->
			<td>${pwd }</td>
			<td>${name }</td>
			<td>${age }</td>
			<td>${height }</td>
		</tr>
	</table>
</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<c:set var="contextPath" value="${pageContext.request.contextPath }"/>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>로그인</title>
</head>
<body>
	<form action="result.jsp">
		아이디 : <input type="text" size="20"><br>
		비밀번호 : <input type="password" size="20"><br>
		<input type="submit" value="로그인">
		<input type="reset" value="다시입력"><br><br>
		<!-- 직접 컨텍스트 이름을 입력해 요청함 -->
		<a href="http://localhost:8080/chap14_EL/jstl01/memberForm.jsp">회원 가입하기</a><br>
		
		<!-- request의 getContextPath() 이용해 컨텍스트 이름을 가져옴 -->
		<a href="<%=request.getContextPath() %>/jstl01/memberForm.jsp">회원 가입하기</a><br>
		
		<!-- 자바 코드 상용하지 않고 pageContext의 속성인 request의 contextPath 속성으로 컨텍스트 이름을 가져옴-->
		<a href="${contextPath}/jstl01/memberForm.jsp">회원 가입하기</a>
	</form>
</body>
</html>

      <%@page import="kr.co.ezenac.jstl.MemberBean"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!-- core 태그 라이브러리를 사용하기 위해서 반드시 선언해야 함 -->
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
	request.setCharacterEncoding("utf-8");
%>
<jsp:useBean id="membersList" class="java.util.ArrayList" />
<jsp:useBean id="membersMap" class="java.util.HashMap" />

<%
	membersMap.put("id", "ezen100");
	membersMap.put("pwd", "0311");
	membersMap.put("name", "이젠IT");
	membersMap.put("email", "ezen100@gmail.com");
	MemberBean m1 = new MemberBean("lee", "0311", "이순신", "lee@gmail.com");
	MemberBean m2 = new MemberBean("shin", "0311", "신사임당", "shin@gmail.com");
	membersList.add(m1);
	membersList.add(m2);
	membersMap.put("membersList", membersList);
	
%>
<%-- c:set 태그로 HashMap에 저장된 ArrayList에 접근하기 위해 좀 더 편리한 이름으로 설정함 --%>
<c:set var="membersList" value="${membersMap.membersList }"/>

<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>회원 정보 출력</title>
</head>
<body>
	<table border="1" align="center">
		<tr align="center" bgcolor="#99ccff">
			<td width="20%"><b>아이디</b></td>
			<td width="20%"><b>비밀번호</b></td>
			<td width="20%"><b>이름</b></td>
			<td width="20%"><b>이메일</b></td>
		</tr>
		<tr align="center">
			<td>${membersMap.id }</td>
			<td>${membersMap.pwd }</td>
			<td>${membersMap.name }</td>
			<td>${membersMap.email }</td>
		</tr>
		<tr align="center">
			<td>${membersList[0].id }</td>		<!-- c:set 태그로 설정한 변수 이름으로 접근해서 출력 -->
			<td>${membersList[0].pwd }</td>
			<td>${membersList[0].name }</td>
			<td>${membersList[0].email }</td>
		</tr>
		<tr align="center">
			<td>${membersList[1].id }</td>
			<td>${membersList[1].pwd }</td>
			<td>${membersList[1].name }</td>
			<td>${membersList[1].email }</td>
		</tr>
	</table>
</body>
</html>

      <%@page import="kr.co.ezenac.jstl.MemberBean"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!-- core 태그 라이브러리를 사용하기 위해서 반드시 선언해야 함 -->
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
	request.setCharacterEncoding("utf-8");
%>

<c:set var="id" value="ezen700" scope="page"/>
<c:set var="pwd" value="0311" scope="page"/>
<c:set var="name" value="${'이순신' }" scope="page"/>
<c:set var="age" value="${30 }" scope="page"/>
<c:set var="height" value="${180 }" scope="page"/>
<c:remove var="age"/>		<!-- 변수 age와 height를 삭제하 -->
<c:remove var="height"/>

<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>회원 정보 출력</title>
</head>
<body>
	<table border="1" align="center">
		<tr align="center" bgcolor="#99ccff">
			<td width="7%"><b>아이디</b></td>
			<td width="7%"><b>비밀번호</b></td>
			<td width="7%"><b>이름</b></td>
			<td width="7%"><b>나이</b></td>
			<td width="7%"><b>키</b></td>
		</tr>
		<tr align="center">
			<td>${id }</td>			<!-- EL로 변수에 바로 접근하여 값 출력 -->
			<td>${pwd }</td>
			<td>${name }</td>
			<td>${age }</td>
			<td>${height }</td>
		</tr>
	</table>
</body>
</html>

      <%@page import="kr.co.ezenac.jstl.MemberBean"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!-- core 태그 라이브러리를 사용하기 위해서 반드시 선언해야 함 -->
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
	request.setCharacterEncoding("utf-8");
%>

<c:set var="id" value="ezen700" scope="page"/>
<c:set var="pwd" value="0311" scope="page"/>
<c:set var="name" value="${'이순신' }" scope="page"/>
<c:set var="age" value="${30 }" scope="page"/>
<c:set var="height" value="${180 }" scope="page"/>


<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>조건문</title>
</head>
<body>
	<c:if test="${true }">
		<h1>항상 참입니다.</h1>
	</c:if>
	
	<c:if test="${11 == 11 }">
		<h1>두 값은 같습니다.</h1>
	</c:if>
	
	<c:if test="${11 != 31 }">
		<h1>두 값은 같지 않습니다.</h1>
	</c:if>
	
	<c:if test="${(id=='ezen700') && (name=='이순신')}">
		<h1>아이디는 ${id }이고, 이름은 ${name }입니다.</h1>
	</c:if>
</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Insert title here</title>
</head>
<body>
	<!-- 변수 선언 -->
	<c:set var="number" value="100"/>
	<c:set var="string" value="JSP"/>
	
	<c:if test="${number mod 2 eq 0 }">
		${number } 짝수입니다.<br>
	</c:if>
	
	<c:if test="${string eq 'JAVA' }" var="result">
		문자열은 JAVA입니다.<br>
	</c:if>
	
	<c:if test="${not result }">
		'JAVA'가 아닙니다.<br>
	</c:if>
	
	<h4>조건식 주의사항</h4>
	<c:if test="100" var="result2">
		EL이 아닌 정수를 지정하면 false
	</c:if>
	result2 : ${result2 }<br>
	
	<c:if test="tRuE" var="result3">
		대소문자 구분없이 "tRuE"인 경우 true<br>
	</c:if>
	result3 : ${result3 }<br>
	
	<c:if test="${ true }" var="result4">
		EL 양쪽에 빈 공백이 있는 경우 true<br>
	</c:if>
	result4 : ${result4 }<br>
</body>
</html>

      <%@page import="kr.co.ezenac.jstl.MemberBean"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!-- core 태그 라이브러리를 사용하기 위해서 반드시 선언해야 함 -->
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
	request.setCharacterEncoding("utf-8");
%>

<c:set var="id" value="ezen700" scope="page"/>
<c:set var="pwd" value="0311" scope="page"/>
<c:set var="name" value="${'이순신' }" scope="page"/>
<c:set var="age" value="${30 }" scope="page"/>
<c:set var="height" value="${180 }" scope="page"/>

<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>회원 정보 출력</title>
</head>
<body>
	<table border="1" align="center">
		<tr align="center" bgcolor="#99ccff">
			<td width="7%"><b>아이디</b></td>
			<td width="7%"><b>비밀번호</b></td>
			<td width="7%"><b>이름</b></td>
			<td width="7%"><b>나이</b></td>
			<td width="7%"><b>키</b></td>
		</tr>
		<c:choose>
			<c:when test="${empty name }">	<!-- 변수 name이 null이거나 빈 문자열인지 체크 -->
				<tr align="center">
					<td colspan="5">이름을 입력하세요!</td>
				</tr>
			</c:when>
			<c:otherwise>				<!-- name이 정상적이면 회원정보 출력 -->
				<tr align="center">
					<td>${id }</td>			
					<td>${pwd }</td>
					<td>${name }</td>
					<td>${age }</td>
					<td>${height }</td>
				</tr>
			</c:otherwise>
		</c:choose>
	</table>
</body>
</html>

      <%@page import="java.util.ArrayList"%>
<%@page import="java.util.List"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<%
	List<String> dataList = new ArrayList();
	dataList.add("hello");
	dataList.add("world");
	dataList.add("좋은 아침입니다.");
%>
<c:set var="list" value="<%=dataList %>"/>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>반복문</title>
</head>
<body>
	<c:forEach var="i" begin="1" end="10" step="1" varStatus="loop">
		i = ${i } &nbsp;&nbsp;&nbsp; 반복횟수 : ${loop.count }<br>
	</c:forEach>
	<br>
	
	<c:forEach var="i" begin="1" end="10" step="2">
		5 * ${i } = ${5*i }<br>
	</c:forEach>
	<br>
	
	<!-- ArrayList 컬렉션 객체에 저장된 데이터를 반복해서 반복변수 data에 하나씩 가져와 처리 -->
	<c:forEach var="data" items="${list }">
		${data }<br>
	</c:forEach>
	<br>
	
	<!-- 구분자 ,를 이용해 문자열을 분리해서 출력함 -->
	<c:set var="fruits" value="사과, 파인애플, 바나나, 망고, 귤"/>
	<c:forTokens var="token" items="${fruits }" delims=",">
		${token }<br>
	</c:forTokens>
</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>choose/when/otherwise</title>
	
	<c:set var="number" value="100" />
	<h4>choose 태그로 홀짝 판단하기</h4>
	<c:choose>
		<c:when test="${number mod 2 eq 0 }">
			${number }는 짝수입니다.
		</c:when>
		<c:otherwise>
			${number }는 홀수입니다.
		</c:otherwise>
	</c:choose>
	<br>
	
	<h4>국,영,수 점수를 입력하면 평균을 구해 학점을 출력하시오</h4>
	<form>
		국어 : <input type="text" name="kor"><br>
		영어 : <input type="text" name="eng"><br>
		수학 : <input type="text" name="math"><br>
		<input type="submit" value="학점 구하기">
	</form>
	
	<!-- 모든 과목 점수가 입력되었는지 체크 -->
	<c:if test="${not (empty param.kor or empty param.eng or empty param.math) }">
		<!-- 평균 계산 -->
		<c:set var="avg" value="${(param.kor + param.eng + param.math) / 3 }"/>
		평균 점수는 ${avg }점이고, 
		<!-- 학점 출력 -->
		<c:choose>
			<c:when test="${avg >= 90 }">A학점</c:when>
			<c:when test="${avg >= 80 }">B학점</c:when>
			<c:when test="${avg >= 70 }">C학점</c:when>
			<c:when test="${avg >= 60 }">D학점</c:when>
			<c:otherwise>F학점</c:otherwise>
		</c:choose>
		입니다.
	</c:if>
</head>
<body>

</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>JSTL - forEach</title>
</head>
<body>
	<h4>일반 for문 형태의 forEach 태그</h4>
	<c:forEach begin="1" end="3" step="1" var="i">
		<p>반복 ${i }입니다.</p>
	</c:forEach>
	
	<h4>varStatus 속성 확인하기</h4>
	<table border="1">
		<c:forEach begin="3" end="5" var="i" varStatus="loop">
			<tr>
				<td>count : ${loop.count }</td>
				<td>index : ${loop.index }</td>
				<td>current : ${loop.current }</td>
				<td>first : ${loop.first }</td>
				<td>last : ${loop.last }</td>
			</tr>
		</c:forEach>
	</table>
	
	<h4>1에서 100까지 정수 중 홀수의 합</h4>
		<c:forEach begin="1" end="100" step="1" var="i" varStatus="">
			<c:if test="${i mod 2 ne 0 }">
				<c:set var="sum" value="${sum + i }"/>
			</c:if>
		</c:forEach>
	1~100 사이의 정수 중 홀수의 합은? ${sum }
</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>JSTL - forEach 태그</title>
</head>
<body>
	<h4>향상된 for문 형태의 forEach 태그</h4>
	<%
		String[] rgba = {"Red", "Green", "Blue", "Black"};
	%>
	
	<c:forEach items="<%=rgba %>" var="c">
		<span style="color: ${c};">${c }</span>
	</c:forEach>
	
	<h4>varStatus 속성 확인</h4>
	<table border="1">
		<c:forEach items="<%=rgba %>" var="c" varStatus="loop">
			<tr>
				<td>count: ${loop.count }</td>
				<td>index: ${loop.index }</td>
				<td>current: ${loop.current }</td>
				<td>first: ${loop.first }</td>
				<td>last: ${loop.last }</td>
			</tr>
		</c:forEach>
		
	</table>
</body>
</html>

      package kr.co.ezenac.jstl;

public class Person {
	private String name;
	private int age;
	
	public Person() {
		// TODO Auto-generated constructor stub
	}

	public Person(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}
	
	
}
      <%@page import="java.util.HashMap"%>
<%@page import="java.util.Map"%>
<%@page import="kr.co.ezenac.jstl.Person"%>
<%@page import="java.util.List"%>
<%@page import="java.util.LinkedList"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>JSTL - forEach 태그</title>
</head>
<body>
	<h4>List 컬렉션 사용하기</h4>
	<%
		List<Person> lists = new LinkedList<>();
		lists.add(new Person("이순신", 30));
		lists.add(new Person("이도", 40));
		lists.add(new Person("신사임당", 50));
	%>
	<c:set var="lists" value="<%=lists %>" />
	<c:forEach items="${lists }" var="list">
		<li>
			이름 : ${list.name }, 나이 : ${list.age }
		</li>
	</c:forEach>
	
	<h4>Map 컬렉션 사용하기</h4>
	<%
		Map<String,Person> maps = new HashMap<>();
		maps.put("1st", new Person("이순신", 30));
		maps.put("2st", new Person("이도", 40));
		maps.put("3rd", new Person("신사임당", 50));
	%>
	<c:set var="maps" value="<%=maps %>"/>
	<c:forEach items="${maps }" var="map">
		<li>
			Key -> ${map.key }<br>
			Value -> 이름 : ${map.value.name }, 나이 : ${map.value.age }
		</li>
	</c:forEach>
</body>
</html>

      package kr.co.ezenac.jstl;

import java.sql.Date;

public class MemberBean {
	private String id;
	private String pwd;
	private String name;
	private String email;
	private Date joinDate;
	
	public MemberBean() {
		// TODO Auto-generated constructor stub
	}

	public MemberBean(String id, String pwd, String name, String email) {
		//super();
		this.id = id;
		this.pwd = pwd;
		this.name = name;
		this.email = email;
	}

	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}

	public String getPwd() {
		return pwd;
	}

	public void setPwd(String pwd) {
		this.pwd = pwd;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getEmail() {
		return email;
	}

	public void setEmail(String email) {
		this.email = email;
	}

	public Date getJoinDate() {
		return joinDate;
	}

	public void setJoinDate(Date joinDate) {
		this.joinDate = joinDate;
	}
	
}
      <%@page import="java.util.ArrayList"%>
<%@page import="java.util.List"%>
<%@page import="kr.co.ezenac.jstl.MemberBean"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!-- core 태그 라이브러리를 사용하기 위해서 반드시 선언해야 함 -->
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
	request.setCharacterEncoding("utf-8");
%>
<%
	List<MemberBean> membersList = new ArrayList<>();
	MemberBean m1 = new MemberBean("ezen100", "0311", "이순신", "ezen100@gmail.com");
	MemberBean m2 = new MemberBean("ezen200", "0311", "신사임당", "ezen200@gmail.com");
	MemberBean m3 = new MemberBean("ezen300", "0311", "이도", "ezen300@gmail.com");
	membersList.add(m1);
	membersList.add(m2);
	membersList.add(m3);
%>
<c:set var="membersList" value="<%=membersList %>"/>

<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>회원 정보 출력</title>
</head>
<body>
	<table border="1" align="center">
		<tr align="center" bgcolor="#99ccff">
			<td width="7%"><b>아이디</b></td>
			<td width="7%"><b>비밀번호</b></td>
			<td width="7%"><b>이름</b></td>
			<td width="7%"><b>이메일</b></td>
		</tr>
		<c:forEach var="i" begin="0" end="2" step="1">
			<tr	 align="center">
				<td>${membersList[i].id }</td>
				<td>${membersList[i].pwd }</td>
				<td>${membersList[i].name }</td>
				<td>${membersList[i].email }</td>
			</tr>
		</c:forEach>
	</table>
</body>
</html>

      import java.sql.Date;

public class MemberBean {
	private String id;
	private String pwd;
	private String name;
	private String email;
	private Date joinDate;
	
	public MemberBean() {
		// TODO Auto-generated constructor stub
	}

	public MemberBean(String id, String pwd, String name, String email) {
		//super();
		this.id = id;
		this.pwd = pwd;
		this.name = name;
		this.email = email;
	}

	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}

	public String getPwd() {
		return pwd;
	}

	public void setPwd(String pwd) {
		this.pwd = pwd;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getEmail() {
		return email;
	}

	public void setEmail(String email) {
		this.email = email;
	}

	public Date getJoinDate() {
		return joinDate;
	}

	public void setJoinDate(Date joinDate) {
		this.joinDate = joinDate;
	}
	
}
      <%@page import="java.util.ArrayList"%>
<%@page import="java.util.List"%>
<%@page import="kr.co.ezenac.jstl.MemberBean"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!-- core 태그 라이브러리를 사용하기 위해서 반드시 선언해야 함 -->
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
	request.setCharacterEncoding("utf-8");
%>
<%
	List<MemberBean> membersList = new ArrayList<>();
	MemberBean m1 = new MemberBean("ezen100", "0311", "이순신", "ezen100@gmail.com");
	MemberBean m2 = new MemberBean("ezen200", "0311", "신사임당", "ezen200@gmail.com");
	MemberBean m3 = new MemberBean("ezen300", "0311", "이도", "ezen300@gmail.com");
	membersList.add(m1);
	membersList.add(m2);
	membersList.add(m3);
%>
<c:set var="membersList" value="<%=membersList %>"/>

<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>회원 정보 출력</title>
</head>
<body>
	<table border="1" align="center">
		<tr align="center" bgcolor="#99ccff">
			<td width="7%"><b>아이디</b></td>
			<td width="7%"><b>비밀번호</b></td>
			<td width="7%"><b>이름</b></td>
			<td width="7%"><b>이메일</b></td>
		</tr>
		
		<!-- 반복문 수행하면서 membersList에 저장된 MemberBean 객체가 차례대로 member 할당됨 -->
		<c:forEach var="member" items="${membersList }">
			<tr	 align="center">
				<td>${member.id }</td>
				<td>${member.pwd }</td>
				<td>${member.name }</td>
				<td>${member.email }</td>
			</tr>
		</c:forEach>
	</table>
</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<c:set var="contextPath" value="${pageContext.request.contextPath }"/>
<!-- c:url 태그로 이동할 페이지 설정 -->
<c:url var="url1" value="../jstl01/member01.jsp">
	<c:param name="id" value="ezen300"/>	<!-- 이동할 페이지로 전달할 데이터 설정 -->
	<c:param name="pwd" value="0311"/>
	<c:param name="name" value="이순신"/>
	<c:param name="email" value="ezen300@gmail.com"/>
</c:url>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>c:url 테스트</title>
</head>
<body>
	<%-- <a href="${contextPath}/jstl01/member1.jsp">회원정보 출력</a> --%>
	<a href="${url1 }">회원정보 출력</a>
</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!-- core 태그 라이브러리를 사용하기 위해서 반드시 선언해야 함 -->
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
	request.setCharacterEncoding("utf-8");
%>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>회원 정보 출력</title>
</head>
<body>
	<table border="1" align="center">
		<tr align="center" bgcolor="#99ccff">
			<td width="7%"><b>아이디</b></td>
			<td width="7%"><b>비밀번호</b></td>
			<td width="7%"><b>이름</b></td>
			<td width="7%"><b>이메일</b></td>
		</tr>
		<tr align="center">
			<td>${param.id }</td>		
			<td>${param.pwd }</td>
			<td>${param.name }</td>
			<td>${param.email }</td>
		</tr>
	</table>
</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>JSTL - url</title>
</head>
<body>
	<h4>url 태그로 링크 걸기</h4>
	<c:url value="../jstl01/inc/urlPage.jsp" var="url">
		<c:param name="userParam1" value="ezen500"/>
		<c:param name="userParam2">ezen900</c:param>
	</c:url>
	<a href="${url }">urlPage.jsp 바로가기</a>
</body>
</html>
      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<h4>urlPage.jsp</h4>
<ul>
	<li>매개변수 1 : ${param.userParam1 }</li>
	<li>매개변수 2 : ${param.userParam2 }</li>
</ul>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
	request.setCharacterEncoding("utf-8");
%>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>리다이렉트 테스트</title>
</head>
<body>
	<c:redirect url="../jstl01/member01.jsp">		<!-- 리다이렉트 할 페이지 설정 -->
		<c:param name="id" value="${'ezen700' }"/>	<!-- 리다이렉트 할 페이지로 전달할 매개변수 설정 -->
		<c:param name="pwd" value="${'0311' }"/>
		<c:param name="name" value="${'이순신' }"/>
		<c:param name="email" value="${'ezen700@gmail.com' }"/>
	
	</c:redirect>
</body>
</html>
      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!-- core 태그 라이브러리를 사용하기 위해서 반드시 선언해야 함 -->
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
	request.setCharacterEncoding("utf-8");
%>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>회원 정보 출력</title>
</head>
<body>
	<table border="1" align="center">
		<tr align="center" bgcolor="#99ccff">
			<td width="7%"><b>아이디</b></td>
			<td width="7%"><b>비밀번호</b></td>
			<td width="7%"><b>이름</b></td>
			<td width="7%"><b>이메일</b></td>
		</tr>
		<tr align="center">
			<td>${param.id }</td>		
			<td>${param.pwd }</td>
			<td>${param.name }</td>
			<td>${param.email }</td>
		</tr>
	</table>
</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>jstl - redirect</title>
</head>
<body>
	<c:set var="requestVar" value="ezen1000" />
	<c:redirect url="../jstl01/inc/urlPage.jsp">
		<c:param name="userParam1" value="서울시"/>
		<c:param name="userParam2" value="서초구"/>
	</c:redirect>
</body>
</html>
      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<h4>urlPage.jsp</h4>
<ul>
	<li>매개변수 1 : ${param.userParam1 }</li>
	<li>매개변수 2 : ${param.userParam2 }</li>
</ul>

      <%@page import="java.util.ArrayList"%>
<%@page import="java.util.List"%>
<%@page import="kr.co.ezenac.jstl.MemberBean"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!-- core 태그 라이브러리를 사용하기 위해서 반드시 선언해야 함 -->
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
	request.setCharacterEncoding("utf-8");
%>

<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>회원 정보 출력</title>
</head>
<body>
	<table border="1" align="center">
		<tr align="center" bgcolor="#99ccff">
			<td width="7%"><b>아이디</b></td>
			<td width="7%"><b>비밀번호</b></td>
			<td width="7%"><b>이름</b></td>
			<td width="7%"><b>이메일</b></td>
		</tr>
		<c:choose>
			<c:when test="${empty param.id }">
				<tr align="center">
					<td colspan="5">아이디를 입력하세요.</td>
				</tr>
			</c:when>
			<c:otherwise>
				<tr align="center">
					<td><c:out value="${param.id }"/></td>
					<td><c:out value="${param.pwd }"/></td>
					<td><c:out value="${param.name }"/></td>
					<td><c:out value="${param.email }"/></td>
				</tr>
			</c:otherwise>
		</c:choose>
	</table>
</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>JSTL - out</title>
</head>
<body>
	<c:set var="iTag">
		i 태그는 <i>기울임</i>을 표현합니다.
	</c:set>
	
	<h4>기본 사용</h4>
	<c:out value="${iTag }"/>
	
	<!-- 
		escapeXml이 false일 때 변환되는 문자
		<		&lt;
		>		&gt;
		&		&amp;
		escapeXml 속성이 true이면 value의 값이 그대로 화면에 출력됨
		escapeXml 속성이 false이면 value의 값이 특수문자로 변환되어 화면에 출력됨 
	 -->
	<h4>escapeXml 속성</h4>
	<c:out value="${iTag }" escapeXml="false"/>
	
	<h2>escapeXml 변환하기</h2>
	<h2>
		<pre>
			<c:out value="&lt;" escapeXml="true"/>
			<c:out value="&lt;" escapeXml="false"/>
			<c:out value="&gt;" escapeXml="true"/>
			<c:out value="&gt;" escapeXml="false"/>
			<c:out value="&amp;" escapeXml="true"/>
			<c:out value="&amp;" escapeXml="false"/>
		</pre>
	</h2>
	
	<h4>default 속성</h4>
	<c:out value="${param.name }" default="이름 없음"/>
	<c:out value="" default="빈 문자열도 값입니다."/>
</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!-- c:set 이용해 pageContext 내장 객체의 컨텍스트 이름을 변수 contextPath에 설정함 -->
<c:set var="contextPath" value="${pageContext.request.contextPath }"/>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>로그인</title>
</head>
<body>
	<form action="result2.jsp">
		아이디 : <input type="text" name="userID" size="20"><br>
		비밀번호 : <input type="password" name="userPW" size="20"><br>
		<input type="submit" value="로그인">
		<input type="reset" value="다시입력"><br><br>
	</form>
</body>
<
      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
	request.setCharacterEncoding("utf-8");
%>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>결과화면2</title>
</head>
<body>
	<c:if test="${empty param.userID }">	<!-- empty 연산자를 이용해 ID 값이 비었는지 체크 -->
		아이디를 입력하세요. <br>
		<a href="login.jsp">로그인</a>
	</c:if>
	<c:if test="${not empty param.userID }">	<!-- ID가 null 아님 체크 -->
		<c:if test="${param.userID == 'admin' }">	<!-- ID가 admin이면 관리자 화면 출력 -->
			<h1>관리자로 로그인 했습니다.</h1>
			<form>
				<input type="button" value="회원정보 수정하기">
				<input type="button" value="회원정보 삭제하기">
			</form>
		</c:if>
		<c:if test="${param.userID != 'admin' }">	<!-- ID가 admin이 아니면 로그인 메세지 출력 -->
			<h1>환영합니다. <c:out value="${param.userID }"/>님!</h1>
		</c:if>
	</c:if>
</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>시험 점수 입력</title>
</head>
<body>
	<h1>시험 점수를 입력해 주세요.</h1>
	<form action="scoreResult2.jsp">
		시험점수 : <input type="text" name="score"><br>
		<input type="submit" value="학점변환">
	</form>
</body>
</html>
      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
	request.setCharacterEncoding("utf-8");
%>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>학점 변환 화면</title>
</head>
<body>
	<c:set var="score" value="${param.score }"/>	<!-- param.score를 score 변수에 할당 -->
	<h1>시험 점수 <c:out value="${score }"/></h1>
	<c:choose>
		<c:when test="${score >= 0 && score <= 100 }">
			<c:choose>
				<c:when test="${score >= 90 && score <= 100 }">
					<h1>A학점 입니다.</h1>
				</c:when>
				<c:when test="${score >= 80 && score <= 90 }">
					<h1>B학점 입니다.</h1>
				</c:when>
				<c:when test="${score >= 70 && score <= 80 }">
					<h1>C학점 입니다.</h1>
				</c:when>
				<c:when test="${score >= 60 && score <= 70 }">
					<h1>D학점 입니다.</h1>
				</c:when>
				<c:otherwise>
					<h1>F학점 입니다.</h1>
				</c:otherwise>
			</c:choose>
		</c:when>
		<c:otherwise>
			<h1>점수를 잘못 입력했습니다. 다시 입력하세요.</h1>
			<a href="scoreTest.jsp">점수 입력</a>
		</c:otherwise>
	</c:choose>
</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>JSTL - fmt1</title>
</head>
<body>
	<h4>숫자 포맷 설정</h4>
	<c:set var="number1" value="12345"/>
	콤마 O : <fmt:formatNumber value="${number1 }"/><br>
	콤마 X : <fmt:formatNumber value="${number1 }" groupingUsed="false"/><br>
	<fmt:formatNumber value="${number1 }" type="currency" var="printNum1"/><br>
	통화기호 : ${printNum1 }<br>
	<fmt:formatNumber value="0.03" type="percent" var="printNum2"/><br>
	퍼센트 : ${printNum2 }<br>
	
	<h4>문자열을 숫자로 변경</h4>
	<c:set var="number2" value="6,789.01"/>
	<fmt:parseNumber value="${number2 }" pattern="00,000.00" var="printNum3"/>
	소수점까지 출력 : ${printNum3 }<br>
	<fmt:parseNumber value="${number2 }" integerOnly="true" var="printNum4"/>
	정수만 출력 : ${printNum4 }<br>
</body>
</html>

      <%@page import="java.util.Date"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>JSTL - fmt2</title>
</head>
<body>
	<c:set var="today" value="<%=new Date() %>"/>
	
	<h4>날짜 포맷</h4>
	full : <fmt:formatDate value="${today }" type="date" dateStyle="full"/><br>
	short : <fmt:formatDate value="${today }" type="date" dateStyle="short"/><br>
	long : <fmt:formatDate value="${today }" type="date" dateStyle="long"/><br>
	default : <fmt:formatDate value="${today }" type="date" dateStyle="default"/><br>
	
	<h4>시간 포맷</h4>
	full : <fmt:formatDate value="${today }" type="time" dateStyle="full"/><br>
	short : <fmt:formatDate value="${today }" type="time" dateStyle="short"/><br>
	long : <fmt:formatDate value="${today }" type="time" dateStyle="long"/><br>
	default : <fmt:formatDate value="${today }" type="time" dateStyle="default"/><br>
	
	<h4>날짜/시간 표시</h4>
	<fmt:formatDate value="${today }" type="both" dateStyle="full" timeStyle="full"/><br>
	<fmt:formatDate value="${today }" type="both" pattern="yyyy-MM-dd hh:mm:ss"/><br>
	
	<h4>타임존 설정</h4>
	<fmt:timeZone value="GMT">
		<fmt:formatDate value="${today }" type="both" dateStyle="full" timeStyle="full"/><br>
	</fmt:timeZone>
	<fmt:timeZone value="America/Los_Angeles">
		<fmt:formatDate value="${today }" type="both" dateStyle="full" timeStyle="full"/><br>
	</fmt:timeZone>
</body>
</html>

      package kr.co.ezenac.util;

import java.util.TimeZone;

public class TimezoneTest {
	public static void main(String[] args) {
		
		String[] timezone = TimeZone.getAvailableIDs();
		for(String zoneId : timezone) {
			System.out.println("타임존 영역 : " + zoneId);
		}
	}
}

      <%@page import="java.util.Date"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>JSTL - fmt3</title>
</head>
<body>
	<h4>로케일 설정</h4>
	<c:set var="today" value="<%=new Date() %>"/>
	
	한글로 설정 : <fmt:setLocale value="ko_kr"/>
	<fmt:formatNumber value="10000" type="currency"/> / 
	<fmt:formatDate value="${today }"/><br>
	
	일어로 설정 : <fmt:setLocale value="ja_JP"/>
	<fmt:formatNumber value="10000" type="currency"/> / 
	<fmt:formatDate value="${today }"/><br>
	
	영어로 설정 : <fmt:setLocale value="en_US"/>
	<fmt:formatNumber value="10000" type="currency"/> / 
	<fmt:formatDate value="${today }"/><br>
</body>
</html>

      mem.name = 이순신
      mem.address = 서울시 서초구
      mem.job = 개발자
      mem.name = \uc774\uc21c\uc2e0
      mem.address = \uc11c\uc6b8\uc2dc \uc11c\ucd08\uad6c
      mem.job = \uac1c\ubc1c\uc790
      mem.name = Admiral Yi
      mem.address = Seocho-gu, Seoul
      mem.job = developer      		 
      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>JSTL 다국어 기능</title>
</head>
<body>
	<%-- <fmt:setLocale value="ko_KR"/> --%>		<!-- locale을 한글로 지정 -->
	<fmt:setLocale value="en_US"/>					<!-- locale을 영어로 지정 -->
	
	<h1>
		회원정보<br><br>
		<fmt:bundle basename="kr.co.ezenac.resource.member">	<!-- 패키지 아래 member 프로퍼티 파일 읽어옴 -->
			이름 : <fmt:message key="mem.name"/><br>		<!-- fmt:message 태그의 key 속성에 프로퍼티 파일의 key 지정 -->
			주소 : <fmt:message key="mem.address"/><br>
			직업 : <fmt:message key="mem.job"/><br>
		</fmt:bundle>
	</h1>
</body>
</html>

      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>회원 가입창</title>
</head>
<body>
	<form action="memberAction.jsp">
		<h1 style="text-align: center;">회원 가입창</h1>
		<table align="center">
			<tr>
				<td width="200">
					<p align="right">아이디</p>
				</td>
				<td width="400">
					<input type="text" name="id">
				</td>
			</tr>
			<tr>
				<td width="200">
					<p align="right">비밀번호</p>
				</td>
				<td width="400">
					<input type="password" name="pwd">
				</td>
			</tr>
			<tr>
				<td width="200">
					<p align="right">이름</p>
				</td>
				<td width="400">
					<input type="text" name="name">
				</td>
			</tr>
			<tr>
				<td width="200">
					<p align="right">이메일</p>
				</td>
				<td width="400">
					<input type="text" name="email">
				</td>
			</tr>
			<tr>
				<td width="200">
					<p align="right">&nbsp;</p>
				</td>
				<td width="400">
					<input type="submit" value="가입하기">
					<input type="reset" value="다시입력">
				</td>
			</tr>
		</table>
	</form>
</body>
</html>
      <%@page import="kr.co.ezenac.member.MemberBean"%>
<%@page import="java.util.List"%>
<%@page import="kr.co.ezenac.member.MemberDAO"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%
	request.setCharacterEncoding("utf-8");
%>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Insert title here</title>
	<jsp:useBean id="m" class="kr.co.ezenac.member.MemberBean"/>
	<jsp:setProperty property="*" name="m"/>
	
	<%
		MemberDAO memberDAO = new MemberDAO();
		memberDAO.addMember(m);
		List<MemberBean> membersList = memberDAO.listMembers();
		request.setAttribute("membersList", membersList);	/* 조회한 회원 정보를 request에 바인딩함 */
	%>
</head>
<body>
	<jsp:forward page="membersList.jsp"/>	<!-- membersList.jsp로 포워딩함 -->
</body>
</html>
      package kr.co.ezenac.member;

import java.sql.Date;

public class MemberBean {
	private String id;
	private String pwd;
	private String name;
	private String email;
	private Date joinDate;
	
	public MemberBean() {
		// TODO Auto-generated constructor stub
	}

	public MemberBean(String id, String pwd, String name, String email) {
		//super();
		this.id = id;
		this.pwd = pwd;
		this.name = name;
		this.email = email;
	}

	public String getId() {
		return id;
	}

	public void setId(String id) {
		this.id = id;
	}

	public String getPwd() {
		return pwd;
	}

	public void setPwd(String pwd) {
		this.pwd = pwd;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getEmail() {
		return email;
	}

	public void setEmail(String email) {
		this.email = email;
	}

	public Date getJoinDate() {
		return joinDate;
	}

	public void setJoinDate(Date joinDate) {
		this.joinDate = joinDate;
	}
	
}
      package kr.co.ezenac.member;

import java.sql.Connection;
import java.sql.Date;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;

public class MemberDAO {
	private Connection conn;
	private PreparedStatement pstmt;
	private DataSource dataFactory;
	
	public MemberDAO() {
		try {
			Context ctx = new InitialContext();
			Context envContext = (Context)ctx.lookup("java:/comp/env");		//JNDI에 접근하기 위해 기본경로를 지정
			//톰캣 context.xml에 설정한 name 값인 jdbc/oracle을 이용해 톰캣이 미리 연결한 DataSource를 받아옴
			dataFactory = (DataSource)envContext.lookup("jdbc/oracle");		
		} catch (NamingException e) {
			e.printStackTrace();
		}
	}
	
	public List<MemberBean> listMembers() {
		List<MemberBean> list = new ArrayList<MemberBean>();
		
		try {
			conn = dataFactory.getConnection();	//DataSource를 이용해 DB에 연결함
			
			String query = "SELECT * FROM T_MEMBER";
			System.out.println(query);
			
			pstmt = conn.prepareStatement(query);	//prepareStatement()메서드에 SQL문을 전달해 객체 생성함
			ResultSet rs = pstmt.executeQuery();	//미리 설정한 SQL문을 실행함
			
			while(rs.next()) {
				String id = rs.getString("id");
				String pwd = rs.getString("pwd");
				String name = rs.getString("name");
				String email = rs.getString("email");
				Date joinDate = rs.getDate("joinDate");	//조회한 레코드의 각 컬럼 값을 받아옴
				
				MemberBean vo = new MemberBean();
				vo.setId(id);
				vo.setPwd(pwd);
				vo.setName(name);
				vo.setEmail(email);
				vo.setJoinDate(joinDate);				//각 컬럼 값을 다시 MemberVO 객체의 속성에 설정함
				
				list.add(vo);							//설정된 MemberVO 객체를 다시 ArrayList에 저장함
			}
			
			rs.close();
			pstmt.close();
			conn.close();
			
		} catch (SQLException e) {
			e.printStackTrace();
		}
		
		return list;				//조회한 레코드의 개수만큼 MemberVO 객체를 저장한 ArrayList를 반환함
	}
	
	public void addMember(MemberBean MemberBean) {
		try {
			conn = dataFactory.getConnection();		// DataSource를 이용해 DB 연결
			
			String id = MemberBean.getId();			// 테이블에 저장할 회원 정보 받아옴
			String pwd = MemberBean.getPwd();
			String name = MemberBean.getName();
			String email = MemberBean.getEmail();
			
			String query = "insert into t_member (id, pwd, name, email) values (?, ?, ?, ?)";
			System.out.println("prepareStatement: " + query);
			
			pstmt = conn.prepareStatement(query);
			
			pstmt.setString(1, id);					//insert문의 ?에 순서대로 회원 정보 세팅
			pstmt.setString(2, pwd);
			pstmt.setString(3, name);
			pstmt.setString(4, email);
			
			pstmt.executeUpdate();
			pstmt.close();
			
		} catch (SQLException e) {
			e.printStackTrace();
		}
	}
}
      <%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%
	request.setCharacterEncoding("utf-8");
%>
<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>회원정보출력</title>
</head>
<body>
	<table align="center" border="1">
		<tr aligh="center" bgcolor="lightgreen">
			<td width="7%">아이디</td>
			<td width="7%">비밀번호</td>
			<td width="5%">이름</td>
			<td width="11%">이메일</td>
			<td width="5%">가입일</td>
		</tr>
		<c:choose>
			<c:when test="${membersList == null }">
				<tr>
					<td colspan="5">
						<b>등록된 회원이 없습니다.</b>
					</td>
				</tr>
			</c:when>
			<c:when test="${membersList != null }">
				<c:forEach var="mem" items="${membersList }">
					<tr align="center">
						<td>${mem.id }</td>
						<td>${mem.pwd }</td>
						<td>${mem.name }</td>
						<td>${mem.email }</td>
						<td>${mem.joinDate }</td>
					</tr>
				</c:forEach>
			</c:when>
		</c:choose>
	</table>
</body>
</html>

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