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1. 로그인 jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP 게시판 웹사이트</title>
<link rel="stylesheet" href="css/bootstrap.css">
</head>
<body>
	<nav class= "navbar navbar-default">
	<div class="navbar-header">
		<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
			<span class="icon-bar"></span>
			<span class="icon-bar"></span>
			<span class="icon-bar"></span>
		</button>
		<a class="navbar-brand" href="main.jsp">JSP게시판 웹 사이트</a>
	</div>
	<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
		<ul class="nav navbar-nav">
			<li><a href="main.jsp">메인</a></li>
			<li><a href="bbs.jsp">게시판</a></li>
		</ul>
		<ul class="nav navbar-nav navbar-right">
			<li class="dropdown">
				<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button"
				aria-haspopup="true" aria-expanded="false" >
				접속하기<span class=caret></span>
				</a>
				<ul class="dropdown-menu">
					<li><a href="login.jsp">로그인</a></li>
					<li class="active"><a href="join.jsp">회원가입</a></li>
				</ul>
			</li>
		</ul>
	</div>
	</nav>
	<div class="container">
		<div class="col-lg-4"></div>
		<div class="col-lg-4">
			<div class="jumbotron" style="padding-top:20px;">
				<form method="post" action="joinAction.jsp">
					<h3 style="text-align-center;">회원가입 화면</h3>
					<div class="form-group">
						<input type="text" class="form-control" placeholder="아이디" name="userId" maxlength="20">
					</div>
					<div class="form-group">
						<input type="password" class="form-control" placeholder="비밀번호" name="userPassword" maxlength="20">
					</div>
					<div class="form-group">
						<input type="text" class="form-control" placeholder="이름" name="userName" maxlength="20">
					</div>
					<div class="form-group" style="text-align:center;">
						<div class="btn-group" data-toggle="buttons">
							<label class="btn btn-primary active">
								<input type="radio" name="userGender" autocomplete="off" value="남자" checked>남자
							</label>
							<label class="btn btn-primary active">
								<input type="radio" name="userGender" autocomplete="off" value="여자" checked>여자
							</label>
						</div>
					</div>
					<div class="form-group">
						<input type="Email" class="form-control" placeholder="이메일" name="userEmail" maxlength="20">
					</div>
					<input type="submit" class="btn btn-primary form-control" value="회원가입">
				</form>
			</div>
		</div>
	</div>
	<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
	<script src="js/bootstrap.js"></script>
</body>
</html>