表单验证和MD5加密
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<!--使用md5加密-->
<script src="https://cdn.bootcss.com/blueimp-md5/2.12.0/js/md5.min.js"></script>
</head>
<body>
<form action="http://baidu.com" method="post" onsubmit="return check()">
<p>
<span>用户名:</span><input type="text" id="username" name="username">
</p>
<p>
<!--明文密码,会被network中直接抓取-->
<span>密码:</span><input type="password" id="input-password">
</p>
<!--md5密码-->
<input type="hidden" id="md5-password" name="password">
<input type="submit" value="登录">
</form>
<script>
function check() {
var uname = document.getElementById('username');
var pwd = document.getElementById('input-password');
var md5pwd = document.getElementById('md5-password');
md5pwd.value = md5(pwd.value);
//控制台输出测试
console.log(uname.value);
console.log(pwd.value);
console.log(md5pwd.value);
//return false回阻止提交
return true;
}
</script>
</body>
</html>
id=md5-password的input的name=password,而id=password的input中没有name属性,而没有name属性的input的数据不会被提交
来源：https://www.cnblogs.com/pinked/p/12267529.html