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利用html5的本地存储功能实现登录用户信息保存

2015-12-02 09:39 1081 查看
<!DOCTYPE html>
<!--[if lt IE 7 ]> <html lang="en" class="no-js ie6 lt8"> <![endif]-->
<!--[if IE 7 ]>    <html lang="en" class="no-js ie7 lt8"> <![endif]-->
<!--[if IE 8 ]>    <html lang="en" class="no-js ie8 lt8"> <![endif]-->
<!--[if IE 9 ]>    <html lang="en" class="no-js ie9"> <![endif]-->
<!--[if (gt IE 9)|!(IE)]><!-->
<html lang="en" class="no-js">
<!--<![endif]-->
<head>
<meta charset="UTF-8" />
<!-- <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">  -->
<title>图书销售管理系统</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description"
content="Login and Registration Form with HTML5 and CSS3" />
<meta name="keywords"
content="html5, css3, form, switch, animation, :target, pseudo-class" />
<meta name="author" content="Codrops" />
<link rel="shortcut icon" href="../favicon.ico">

<script type="text/javascript" src="js/jquery.min.js"></script>
</head>
<script>
//先查看是否有本地数据（记住密码）
/* function myfunction(){
var email = localStorage.getItem("email");
var password = localStorage.getItem("password");
if(email!=null&&password!=null){
alert("邮箱："+email+"密码："+password);
$.ajax({
url : '../servlet/LoginServlet?choose=login',
data : {
email : email,
password : password
},
dataType : 'json',
success : function(data) {
if (data.msg == "") {
alert("用户名或密码错误");
} else {
//登录成功后保存session，如果选择了记住密码，再保存到本地
//window.location.href ='../index/index.jsp';
}
},
error : function() {
alert("系统错误");
}
});
}else{
//alert("没有信息");

}
}
function saveStorage(){
var email = document.getElementById("email").value;
localStorage.setItem("email",email);
var password = document.getElementById("password").value;
localStorage.setItem("password",password);

}
function login(){
$.ajax({
url : '../servlet/LoginServlet?choose=login',
data : {
email : $('#loginform input[name=email]').val(),
password : $('#loginform input[name=password]').val()
},
dataType : 'json',
success : function(data) {
if (data.msg == "") {
alert("用户名或密码错误");
} else {
//登录成功后保存session，如果选择了记住密码，再保存到本地
window.location.href ='../index/index.jsp';
}
},
error : function() {
alert("系统错误");
}
});
}
function reg(){
$.ajax({
url : 'servlet/LoginServlet?choose=reg',
data : {
username : $('#regform input[name=username]').val(),
password : $('#regform input[name=password]').val(),
email : $('#regform input[name=email]').val(),
},
dataType : 'json',
success : function(data) {
if(data.msg == false){
alert("注册失败");
}else{
alert("注册成功请返回登录");
}
},
error : function() {
alert("系统错误");
}
});
} */
$(document).ready(function(){
//读取 localStage 本地存储，填充用户名密码,如果自动登录有值直接跳转；
//相反，跳转到本页面,等待登陆处理
var storage = window.localStorage;
var getEmail = storage["email"];
var getPwd = storage["password"];
var getisstroepwd = storage["isstorePwd"];
var getisautologin = storage["isautologin"];
if("yes" == getisstroepwd)
{
if("yes" == getisautologin)
{
if(( ("" != getEmail) ||(null != getEmail)) && (("" != getPwd) ||(null != getPwd)))
{
//lacoste  已经保存 登陆信息 直接登陆
// alert('正在自动登录');
$("email").val(getEmail);
$("#password").val(getPwd);
// window.location="";
//加载时显示：正在自动登录
$.ajax({
url : '../servlet/LoginServlet?choose=login',
data : {
email :  getEmail,
password : getPwd
},
dataType : 'json',
success : function(data) {
if (data.msg == "") {
alert("账号信息异常，请核实后重新登录");
} else {
//登录成功后保存session，如果选择了记住密码，再保存到本地
//window.location.href ='../index/index.jsp';
}
},
error : function() {
alert("系统错误");
}
});
}
}
else
{
$("#email").val(getEmail);
$("#password").val(getPwd);
document.getElementById("isRemberPwdId").checked = true;
}
}
});
function login(){
var userEmail=$("#email").val();
var userPassWord=$("#password").val();

var storage = window.localStorage;
//记住密码
if(document.getElementById("isRemberPwdId").checked)
{
//存储到loaclStage

storage["email"] = userEmail;
storage["password"] =  userPassWord;
storage["isstorePwd"] =  "yes";
}
else
{
storage["email"] = userEmail;
storage["isstorePwd"] =  "no";
}

//下次自动登录
if(document.getElementById("isAutoLoginId").checked)
{
//存储到loaclStage
storage["email"] = userEmail;
storage["password"] =  userPassWord;
storage["isstorePwd"] =  "yes";
storage["isautologin"] =  "yes";
}
else
{
storage["email"] = userEmail;
storage["isautologin"] =  "no";
}
$.ajax({
url : '../servlet/LoginServlet?choose=login',
data : {
email : userEmail,
password : userPassWord
},
dataType : 'json',
success : function(data) {
if (data.msg == "") {
alert("用户名或密码错误");
} else {
//登录成功后保存session，如果选择了记住密码，再保存到本地
window.location.href ='../index/index.jsp';
}
},
error : function() {
alert("系统错误");
}
});
alert("登录成功");
}
</script>
<body>
<div class="container">
<header>

</header>
<section>

<div id="container_demo">
<a class="hiddenanchor" id="toregister"></a> <a class="hiddenanchor"
id="tologin"></a>
<div id="wrapper">
<div id="login" class="animate form">
<form id="loginform" name="loginform" autocomplete="on" method="post">
<h1>登录</h1>
<p>
<label for="username" class="uname" data-icon="u"> 邮箱  </label>
<input id="email" name="email" required="required"
type="text" placeholder="请输入邮箱" autofocus />
</p>
<p>
<label for="password" class="youpasswd" data-icon="p">
密码</label> <input id="password" name="password" required="required"
type="password" placeholder="请输入密码" />
</p>
<p class="keeplogin">
<input type="checkbox" name="isRemberPwdId" id="isRemberPwdId"
/> <label for="loginkeeping">记住密码 </label>
</p>
<p class="keeplogin">
<input type="checkbox" name="isAutoLoginId" id="isAutoLoginId"
/> <label for="autologin">自动登录 </label>
</p>
<p class="login button">
<input type="button" value="登录" onclick="login()" />
</p>
<p class="change_link">
没有账号? <a href="#toregister" class="to_register">前去注册</a>
</p>
</form>
</div>
</div>
</div>
</section>
</div>
</body>
</html>
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