最简单的实现样式
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" %>
<%--标签页--%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<link href="${pageContext.request.contextPath}/static/bootstrap-3.3.7-dist/css/bootstrap.min.css" rel="stylesheet">
<script src="${pageContext.request.contextPath}/static/common/jquery-2.2.3.min.js"></script>
<script src="${pageContext.request.contextPath}/static/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script>
</head>
<body>
<div>
<ul class="nav nav-tabs">
<li class="active"><a href="#logindiv" data-toggle="tab">登录</a></li>
<li><a href="#registerdiv" data-toggle="tab">注册</a></li>
</ul>
</div>
<div class="tab-content">
<div id="logindiv" class="tab-pane active">登录的div</div>
<div id="registerdiv" class="tab-pane">注册的div</div>
</div>
</body>
</html>
后期修改后样式
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8" %>
<%--标签页--%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<link href="${pageContext.request.contextPath}/static/bootstrap-3.3.7-dist/css/bootstrap.min.css" rel="stylesheet">
<script src="${pageContext.request.contextPath}/static/common/jquery-2.2.3.min.js"></script>
<script src="${pageContext.request.contextPath}/static/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script>
</head>
<style>
#mytabs .nav-tabs {
border-bottom: none; //这儿的样式是取消原来bootstarp的样式加新样式
}
#mytabs .nav-tabs>li.active>a{
color: #f00;
border: none;
}
#mytabs .nav-tabs>li.active{
border-bottom: 2px solid #f00;
}
</style>
<body>
<div style="width: 400px;margin: 0 auto;border: 1px solid #269abc;padding: 30px;">
<div id="mytabs">
<ul class="nav nav-tabs">
<li class="active"><a href="#logindiv" data-toggle="tab">登录</a></li>
<li><a href="#registerdiv" data-toggle="tab">注册</a></li>
</ul>
</div>
<div class="tab-content">
<div id="logindiv" class="tab-pane active">
<form id="addUser" action="/weike/insertUser" method="post" role="form" class="form-horizontal">
<div class="form-group">
<div class="col-xs-3">
<label class="control-label">用户名：</label>
</div>
<div class="col-xs-9">
<input type="text" name="userName" class="form-control">
<span class="help-block"></span>
</div>
</div>
<div class="form-group">
<div class="col-xs-3">
<label class="control-label">密码：</label>
</div>
<div class="col-xs-9">
<input type="text" name="password" class="form-control">
<span class="help-block"></span>
</div>
</div>
</form>
</div>
<div id="registerdiv" class="tab-pane">
<form action="/weike/insertUser" method="post" role="form" class="form-horizontal">
<div class="form-group">
<div class="col-xs-3">
<label class="control-label">用户名：</label>
</div>
<div class="col-xs-9">
<input type="text" name="userName" class="form-control">
<span class="help-block"></span>
</div>
</div>
<div class="form-group">
<div class="col-xs-3">
<label class="control-label">电话：</label>
</div>
<div class="col-xs-9">
<input type="text" name="phone" class="form-control">
<span class="help-block"></span>
</div>
</div>
<div class="form-group">
<div class="col-xs-3">
<label class="control-label">邮箱：</label>
</div>
<div class="col-xs-9">
<input type="text" name="email" class="form-control">
<span class="help-block"></span>
</div>
</div>
<div class="form-group">
<div class="col-xs-4">
<label class="control-label">密码：</label>
</div>
<div class="col-xs-8">
<input type="text" name="password" class="form-control">
<span class="help-block"></span>
</div>
</div>
<div class="form-group">
<div class="col-xs-4">
<label class="control-label">确认密码：</label>
</div>
<div class="col-xs-8">
<input type="text" name="password" class="form-control">
<span class="help-block"></span>
</div>
</div>
</form>
</div>
</div>
</div>
</body>
</html>