<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<script src="../res/static/js/jquery-3.5.1.min.js"></script>
</head>
<body>
<form id="myForm" action="login" method="post">
<input type="text" value="" class="inp" name="username" id="username" />
<input type="password" value="" class="inp" name="password" id="passwrod" />
<div style="margin: 10px;">
<input type="checkbox" id="remember"><label for="remember">记住我</label>
<span style="float: right;">注册</span>
</div>
<button type="button" class="inp" id="btn">立即登录</button>
</form>
<script>
window.onload = function () {
var oFormBtn = document.getElementById('btn');
var oUser = document.getElementById('username');
var oPswd = document.getElementById('passwrod');
var oRemember = document.getElementById('remember');
//页面初始化时，如果帐号密码cookie存在则填充
if (getCookie('username') && getCookie('password')) {
console.log("有数据")
oUser.value = getCookie('username');
oPswd.value = getCookie('password');
oRemember.checked = true;
}
//复选框勾选状态发生改变时，如果未勾选则清除cookie
oRemember.onchange = function () {
console.log("checkbox改变了")
if (!this.checked) {
console.log("删除数据")
delCookie('username');
delCookie('password');
}
};
//表单提交事件触发时，如果复选框是勾选状态则保存cookie
oFormBtn.onclick = function () {
console.log("表单提交时判断是否记住")
if (oRemember.checked) {
console.log("记住数据")
setCookie('username', oUser.value, 7); //保存帐号到cookie，有效期7天
setCookie('password', oPswd.value, 7); //保存密码到cookie，有效期7天
}
};
};
//设置cookie
function setCookie(name, value, day) {
var date = new Date();
date.setDate(date.getDate() + day);
document.cookie = name + '=' + value + ';expires=' + date;
};
//获取cookie
function getCookie(name) {
var reg = RegExp(name + '=([^;]+)');
var arr = document.cookie.match(reg);
if (arr) {
return arr[1];
} else {
return '';
}
};
//删除cookie
function delCookie(name) {
setCookie(name, null, -1);
};
</script>
</body>
</html>
