jsp中用cookie做的一个关于密码下次登录的时候能够自动显示小例子

<!-- 这个例子在jsp的第七次 -->

<script type="text/javascript" src="js/cookie.js"></script>

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<form action="" method="post">

用户名:<input type=text name=username onblur="getPwd()"> <br>

密码:<input type=password name=password> <br>

保存密码:<select name="cookieTime">

<option value="-1">不保存</option>

<option value="24">保存一天</option>

<option value="24*7">保存一周</option>

<option value="6*30*24">保存半年</option>

</select>

<br>

<input type=submit value="登陆" onclick="save()">

</form>

<script>

//取密码

function getPwd()

{

var username = document.getElementsByName("username")[0].value;

var password = getCookie(username);

if (password)

document.getElementsByName("password")[0].value = password;

}

//保存密码

function save()

{

var username = document.getElementsByName("username")[0].value;

var password = document.getElementsByName("password")[0].value;

var time = eval(document.getElementsByName("cookieTime")[0].value);

setCookie(username,password,time);

}

</script>