书城-第四阶段
使用EL表达式修改表单回显
login.jsp
<%@ 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">
<%-- <%=request.getAttribute("msg")==null?"请输入用户名和密码":request.getAttribute("msg")%><%– 请输入用户名和密码–%>--%>
${empty requestScope.msg? "请输入用户名和密码" : requestScope.msg }
</span>
</div>
<div class="form">
<form action="userServlet" method="post">
<input type="hidden" name="action" value="login"/>
<label>用户名称:</label>
<input class="itxt" type="text" placeholder="请输入用户名"
autocomplete="off" tabindex="1" name="username"
<%-- value="<%=request.getAttribute("username")==null?"":request.getAttribute("username")%>"/>--%>
value="${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>
regist.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>尚硅谷会员注册页面</title>
<%--静态包含 base标签，css样式，jquery文件 --%>
<%@ include file="/pages/common/head.jsp"%>
<script type="text/javascript">//页面加载完成之后
$(function () {
//给注册绑定单击事件
$("#sub_btn").click(function () {
//验证用户名:必须由字母，数字下划线组成，并且长度为5到12位
//1获取用户名输入框里的内容
var usernameText=$("#username").val();
//2创建正则表达式对象
var usernamePatt=/^\w{5,12}$/;
//3使test方法验证
if(!usernamePatt.test(usernameText)){
//4提示用户结果
$("span.errorMsg").text("用户名不合法!");
return false;
}
//验证密码:必须由字母，数字下划线组成，并且长度为5到12位
//1获取用户名输入框里的内容
var passwordText=$("#password").val();
//2创建正则表达式对象
var passwordPatt=/^\w{5,12}$/;
//3使test方法验证
if(!passwordPatt.test(passwordText)){
//4提示用户结果
$("span.errorMsg").text("密码不合法!");
return false;
}
//验证确认密码:和密码相同
//1获取确认密码内容
var repwdText=$("#repwd").val();
//2和密码相比较
if (repwdText!=passwordText){
//3提示用户
$("span.errorMsg").text("确认密码和密码不一致!");
return false;
}
//邮箱验证:xxxxx@xxx.com
//1获取邮箱里的内容
var emailText=$("#email").val();
//2创建正则表达式对象
var emailPatt=/^[a-z\d]+(\.[a-z\d]+)*@([\da-z](-[\da-z])?)+(\.{1,2}[a-z]+)+$/;
//3使test方法验证
if(!emailPatt.test(emailText)){
//4提示用户结果
$("span.errorMsg").text("邮箱格式不合法!");
return false;
}
//验证码现在只需要验证用户已输入。因为还没讲到服务器。验证码生成。
var codeText=$("#code").val();
//去掉验证码前后空格
alert("去空格前["+codeText+"]");
codeText=$.trim(codeText);
alert("去空格后["+codeText+"]");
if (codeText==null||codeText==""){
//提示用户结果
$("span.errorMsg").text("验证码不能为空");
return false;
}
$("span.errorMsg").text("");
});
});</script>
<style type="text/css">.login_form {
height: 420px;
margin-top: 25px;
}</style>
</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">欢迎注册</span>
</div>
<div id="content">
<div class="login_form">
<div class="login_box">
<div class="tit">
<h1>注册尚硅谷会员</h1>
<span class="errorMsg">
<%-- <%=request.getAttribute("msg")==null?"":request.getAttribute("msg")%>--%>
${requestScope.msg}
</span>
</div>
<div class="form">
<form action="userServlet" method="post">
<input type="hidden" name="action" value="regist"/>
<label>用户名称:</label>
<input class="itxt" type="text" placeholder="请输入用户名"
<%-- value="<%=request.getAttribute("username")==null?"":request.getAttribute("username")%>"--%>
value="${requestScope.username}"
autocomplete="off" tabindex="1" name="username" id="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" id="password"/>
<br/>
<br/>
<label>确认密码:</label>
<input class="itxt" type="password" placeholder="确认密码"
autocomplete="off" tabindex="1" name="repwd" id="repwd"/>
<br/>
<br/>
<label>电子邮件:</label>
<input class="itxt" type="text" placeholder="请输入邮箱地址"
<%-- value="<%=request.getAttribute("email")==null?"":request.getAttribute("email")%>"--%>
value="${requestScope.email}"
autocomplete="off" tabindex="1" name="email" id="email"/>
<br/>
<br/>
<label>验证码:</label>
<input class="itxt" type="text" name="code" style="..." id="code"/>
<img alt="" src="static/img/code.bmp" style="...">
<br/>
<br/>
<input type="submit" value="注册" 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>
