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211111_jstl_porm,if,when,choose카테고리 없음 2021. 11. 11. 11:29
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!-- 태그 -->
<%@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">
<link href="https://fonts.googleapis.com/css2?family=Do+Hyeon&display=swap" rel="stylesheet">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
<script src="https://code.jquery.com/jquery-3.5.0.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"></script>
<title>Insert title here</title>
</head>
<body>
<!-- post방식은 한글깨짐 -->
<fmt:requestEncoding value="utf-8"/>
<!-- value="${param.age}"가 request.getparameter("age")와 같은 의미 -->
<form action="ex3_jstl.jsp" method="post">
<table class="table table-bordered" style="width: 300px;">
<tr>
<th bgcolor="orange" width="100">이름</th>
<td>
<input type="text" name="name" class="form-control" style="width: 120px;" value="${param.name}">
</td>
</tr>
<tr>
<th bgcolor="orange" width="100">나이</th>
<td>
<input type="text" name="age" class="form-control" style="width: 120px;" value="${param.age}">
</td>
</tr>
<tr>
<th bgcolor="orange" width="100">급여</th>
<td>
<input type="text" name="pay" class="form-control" style="width: 120px;" value="${param.pay}">
</td>
</tr>
<tr>
<th bgcolor="orange" width="100">가고 싶은<br>나라(이유)</th>
<td>
<input type="text" name="nara" class="form-control" style="width: 120px;" value="${param.nara}">
</td>
</tr>
<tr>
<td colspan="2" align="center" bgcolor="orange">
<button type="submit" class="btn btn-success">결과확인</button>
</td>
</tr>
</table>
</form>
<hr>
<!-- 이름을 입력했을 경우에만 div 출력 -->
<c:if test="${!empty param.name}">
<div class="alert alert-info" style="width: 400px; font-size: 1.2em;">
이름: ${param.name}<br>
나이: ${param.age}세(
<c:if test="${param.age>=20}">
<span style="color: magenta;">성인</span>
</c:if>
<!-- jstl에는 if문에 else가 없음.. 조건 주고 싶으면 또 조건을 줘야 함 -->
<c:if test="${param.age<20}">
<span style="color: red;">미성년</span>
</c:if>
)<br>
급여: <fmt:formatNumber value="${param.pay}" type="currency"/><br>
가고싶은 나라(이유): ${param.nara}<br>
<b style="padding-left: 30px;">
<c:choose>
<c:when test="${param.nara=='프랑스'}">
프랑스(에펠탑,쇼핑)
</c:when>
<c:when test="${param.nara=='호주'}">
호주(서핑)
</c:when>
<c:when test="${param.nara=='하와이'}">
하와이(수영)
</c:when>
<c:when test="${param.nara=='크로아티아'}">
크로아티아(동유럽이 좋음)
</c:when>
<c:otherwise>
${param.nara}은/는 별로 관심이 없다
</c:otherwise>
</c:choose>
</b>
</div>
</c:if>
</body>
</html>
