html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<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>
</head>
<body>
<h3>폼태그 연습_#3</h3>
<form action="ex12_formaction.jsp" method="post">
<table class="table table-bordered" style="width: 300px;">
<tr>
<th width="100">이름</th>
<td>
<input type="text" name="name" class="form-control" required="required">
</td>
</tr>
<tr>
<th width="100">비밀번호</th>
<td>
<input type="password" name="pass" class="form-control" required="required"
pattern="[0-9]{1,4}"> <!-- 0-9숫자만 가능, 길이는 1-4까지만 -->
</td>
</tr>
<tr>
<td colspan="2" align="center">
<button type="submit" name="btn btn-info" >서버로 전송</button>
</td>
</tr>
</table>
</form>
</body>
</html>
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
formaction.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<link href="https://fonts.googleapis.com/css2?family=Nanum+Pen+Script&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>
</head>
<body>
<%
request.setCharacterEncoding("utf-8");
String name=request.getParameter("name");
String pass=request.getParameter("pass");
%>
<h3>ex12 결과 출력</h3>
이름: <%=name %><br>
비밀번호: <%=pass %><br>
<!-- a태그 이용해서 다시 입력할 수 있게 -->
<a href="ex12_form.html">다시 입력</a>
<!-- 자바스크립트 태그: 이전 -->
<a href="javascript:history.back()">다시 입력</a>
</body>
</html>
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