尚硅谷书城项目---第四阶段使用EL修改表单回显
以登录页面举例，其他页面类比更改:
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>尚硅谷会员登录页面</title>
<%-- 静态包含 base标签、css样式、jQuery文件 --%>
<%@ include file="/pages/common/head.jsp"%>
</head>
<body>
<div id="login_header">
<img class="logo_img" alt="" src="static/img/logo.gif" >
</div>
<div class="login_banner">
<div id="l_content">
<span class="login_word">欢迎登录</span>
</div>
<div id="content">
<div class="login_form">
<div class="login_box">
<div class="tit">
<h1>尚硅谷会员</h1>
<a href="pages/user/regist.jsp">立即注册</a>
</div>
<div class="msg_cont">
<b></b>
<span class="errorMsg">
${ empty requestScope.msg ? "请输入用户名和密码":requestScope.msg }
</span>
</div>
<div class="form">
<form action="userServlet" method="post">
<input type="hidden" name="action" value="login" />
<label>用户名称：</label>
<input class="itxt" type="text" placeholder="请输入用户名"
autocomplete="off" tabindex="1" name="username"
value="${requestScope.username}" />
<br />
<br />
<label>用户密码：</label>
<input class="itxt" type="password" placeholder="请输入密码"
autocomplete="off" tabindex="1" name="password" />
<br />
<br />
<input type="submit" value="登录" id="sub_btn" />
</form>
</div>
</div>
</div>
</div>
</div>
<%--静态包含页脚内容--%>
<%@include file="/pages/common/footer.jsp"%>
</body>
</html>
