基于bootstrap表单登录（带验证码）
<%@ page contentType="text/html;charset=UTF-8"language="java"%>
<!-- 跳转到登录页⾯之前的URL -->
<%
String redirectUrl = (String) Session().getAttribute("redirectUrl");
String bikeNo = (String) Session().getAttribute("bikeNo");
request.setAttribute("url", redirectUrl);
request.setAttribute("bikeNo", bikeNo);
%>
<html>
<head>
<meta http-equiv="Content-Type"content="text/html; charset=utf-8"/>
<meta name="viewport"content="width=device-width,initial-scale=1,maximum-scale=1.0"/>
<title>登录</title>
<!-- 引⼊ Bootstrap -->
<link href="${tPath}/css/bootstrap.min.css"rel="stylesheet">
<!-- 引⼊⾃定义css -->
<link href="${tPath}/css/style.css"rel="stylesheet">
<!-- jQuery -->
<script src="${tPath}/js/jquery.min.js"></script>
<!-- 包括所有已编译的插件 -->
<script src="${tPath}/js/bootstrap.min.js"></script>
</head>
<body class="login">
<div class="container a ">
<div class="row center-vertical">
<%--屏蔽框--%>
<div class="hidebox"align="center">
<img src="${tPath}/images/Loading.gif"
/>
</div>
<div class="col-sm-4 col-sm-offset-4 ">
<br><br><br>
<form class="bs-example bs-example-form"role="form">
<div class="input-control"align="center">
<img src="${tPath}/images/logo.jpg"/>
<h1>租借单车</h1>
</div>
<div class="input-group input-group-lg">
<span class="input-group-addon">
<span class="glyphicon glyphicon-phone"></span>
</span>
<input type="text"class="form-control input-lg"id="userPhone"name="userPhone"
placeholder="请输⼊⼿机号"maxlength="11"onkeyup="this.value=place(/\D/g,'')"
onafterpaste="this.value=place(/\D/g,'')">
<span class="glyphicon form-control-feedback"></span>
</div>
<br>
<div class="input-group input-group-lg">
<span class="input-group-addon">
<span class="glyphicon glyphicon-picture"></span>
</span>
<input type="text"name="kaptcha"class="form-control input-lg"id="kaptcha"placeholder="请输⼊验证码">
<span class="glyphicon form-control-feedback"></span>
<span class="input-group-addon-kaptcha">
<span class="input-group-addon-kaptcha">
<img src="${tPath}/login/getkaptchaCode.do"id="kaptchaImage"
>
</span>
</div>
<br>
<div class="form-group center">
<p align="center">
<button type="button"class="btn btn-lg btn-md btn-primary"id="submit">登录</button>
</p>
</div>
<button type="button"id="showBox">显⽰</button>
</form>
</div>
</div>
</div>
</body>
<script>
//更换验证码
$("#kaptchaImage").click(function () {
$(this).attr('src', '${tPath}/login/getkaptchaCode.do?'+ Math.floor(Math.random() * 100));    });
//校验⼿机号格式
function checkUserPhone() {
var $userPhone = $("#userPhone");
var userPhone = $userPhone.val();
if(!userPhone) {
addCheckError($userPhone);
return false;
}
var reg = /^1[3|4|5|7|8][0-9]{9}$/; //⼿机号验证规则
if(!st(userPhone)) {
addCheckError($userPhone);
return false;
}
addCheckOk($userPhone);
return userPhone;
}
//校验验证码格式
function checkKaptcha() {
var $kaptcha = $("#kaptcha");
var kaptcha = $kaptcha.val();
if(!kaptcha) {
addCheckError($kaptcha);
return false;
}
var regKaptcha = /^[0-9a-zA-Z]{4}$/;//验证码验证规则
if(!st(kaptcha)) {
addCheckError($kaptcha);
return false;
}
//addCheckOk($kaptcha);
return kaptcha;
}
//添加校验错误样式
function addCheckError($element) {
$element.parent("div").addClass("has-error");
$("span").addClass("glyphicon-remove-sign");
}
//移除校验错误样式
function removeCheckError($element) {
$element.parent("div").removeClass("has-error");
$("span").removeClass("glyphicon-remove-sign");
}
//添加校验成功样式
function addCheckOk($element) {
$element.parent("div").addClass("has-success");
$("span").addClass("glyphicon-ok-sign");
}
//移除校验成功样式
function removeCheckOk($element) {
$element.parent("div").removeClass("has-success");
$("span").removeClass("glyphicon-ok-sign");
}
//当输⼊框获得焦点时，移除成功或失败样式
$("#userPhone,#kaptcha").on("focus", function () {
removeCheckError($(this));
removeCheckOk($(this));
});
//验证⽤书输⼊的验证码是否正确
/*$('#kaptcha').on("blur", function () {
var kaptcha = checkKaptcha();
if (!kaptcha) {
return false;
}
$.ajax({
type: "POST",
url: "${tPath}/login/check.do",
bootstrap检验方法
data: {"kaptcha": kaptcha},
dataType: "json",
success: function (data) {
alert(data.kaptchaFlag);
}
});
});*/
//登录
$("#submit").on("click", function () {
showBox();
var userPhone = checkUserPhone();
if(!userPhone) {
hideBox();
return false;
}
var kaptcha = checkKaptcha();
if(!kaptcha) {
hideBox();
return false;
}
var url = "${url}";
if(!url) {
window.location.href = "${tPath }/index.jsp";            return;
return;
}
url = "${url}"+ "?bikeNo="+ "${bikeNo}";
$.ajax({
type: "POST",
url: "${tPath }/login/login.do",            data: {
userPhone: userPhone,
kaptcha: kaptcha
},
dataType: "json",
success: function (data) {
console.info("data:"+ data);
if(data.kaptchaFlag) {
//alert("验证码正确");
addCheckOk($("#kaptcha"));
if(data.userFlag) {
window.location.href = url;
} else{
alert("⽤户不存在");
hideBox();
}
} else{
alert("验证码错误");
addCheckError($("#kaptcha"));
hideBox();
}
}
});
});
$("#showBox").click(function () {
showBox();
});
$("#hideBox").click(function () {
hideBox();
});
//页⾯屏蔽不可点击
function showBox() {
$(".hidebox").show().height($(window).height());
}
//去除隐藏层和弹出层
function hideBox() {
$(".hidebox").hide();
}
</script>
</html>

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