JavaScriptCookie&PHPCookie实现用户登录信息自动填入

步骤：

1.登录表单的加载；

2.在加载登录表单后，引入的js会执行，给表单中加载值；

3.在没有cookie的情况下，登录跳转到主页过的服务器会存储cookie;

4.跳转到主页，主页在这里就不再展示啦！

一、登录页面login.html表单

<form action="ServerLogin.php" method="post"
enctype="application/x-www-form-urlencoded">
<input id="us" type="text" name="username" class="username"
placeholder="Username">
<input id="pw" type="password" name="password" class="password"
 placeholder="Password">
<button type="submit">Sign me in</button>
<div class="error"><span>+</span></div>
</form>

二、登录页引入js

<!--引入自动添加用户信息的cookie的js-->
<script src="autoAddCookie.js"></script>

三、
文件autoAddCookie.js的cookie获取如下：

$(function () {
initialValue();
function initialValue() {
//jQuery方式
$("#us").val(getCookieByKey("username"));
$("#pw").val(getCookieByKey("password"));
//javaScript方式
//        document.getElementById("us").value = getCookieByKey("username");
//        document.getElementById("pw").value = getCookieByKey("password");
}

//javaScript Cookie获取
function getCookieByKey(key) {
var cookie = document.cookie.split(";");
for (i = 0; i < cookie.length; i++) {
var value = cookie[i].trim();
if (value.indexOf(key) == 0) {
v = value.split("=");
return v[1];
}
}
}
});
/**
* Created by 洋   汪 on 2016/7/19.
*/

javaScript Cookies的设置获取详解在我的下边博文：http://blog.csdn.net/u013005050/article/details/51966626

四、服务器文件设置PHPcookie,ServerCookie.php

<?php
/**
* Created by PhpStorm.
* User: 洋   汪
* Date: 2016/7/19
* Time: 11:53
*/
header("Content-type:text/html;charset=utf-8");
include "data.php";
if ($_SERVER["REQUEST_METHOD"] == "POST") {
if ($_POST["username"] == $info["username"] && $_POST["password"] == $info["password"]) {
//设置cookie
setCookieByKey($_POST["username"], $_POST["password"]);

//设置session
$mySession = $_POST;
$mySession = array_merge($mySession, array("loginIp" => $_SERVER["REMOTE_ADDR"], "loginTime" => time()));
setSession($mySession);
echo "<script>window.location.href ='index.php';</script>";
} else {
echo "<script>alert('用户名或密码错误！！！');</script>";
}
} else {
echo "<script>
alert('请登录！！！');
window.location.href = 'login.html';
</script>";
}
//设置session
function setSession(array $mySession)
{
session_start();
//    $_SESSION = $mySession;
//Array ( [username] => wangyang [password] => 123456 [loginIp] => 127.0.0.1 [login_time] => 1468915628 )
//    print_r($_SESSION);

$_SESSION["username"] = $mySession["username"];
$_SESSION["password"] = $mySession["password"];
$_SESSION["loginIp"] = $mySession["loginIp"];
$_SESSION["loginTime"] = $mySession["loginTime"];
}

//设置Cookie
function setCookieByKey($username, $password)
{
setcookie("username", $username, time() + 120);
setcookie("password", $password, time() + 120);
}

?>

PHP Cookie的详细讲解在我的博文当中，PHP Cookie的链接地址等我发表通过后，展示出来。