一、多站点共享用户信息解决方案：
采用分布式缓存Memcache模拟Session进行用户信息信息共享
1、视图部分
@{
Layout = null;
}
<!DOCTYPE html>
<html>
<head>
<title>XX商城后台管理系统登录</title>
<script type="text/javascript">
if (window.parent.window != window) {
window.top.location.href = "/Home/CheckLogin";
}
</script>
<script src="~/Scripts/jquery-1.8.2.min.js"></script>
<script src="~/Scripts/jquery.validate.min.js"></script>
<script src="~/Scripts/jquery.unobtrusive-ajax.min.js"></script>
<script type="text/javascript">
function changeCheckCode() {
$("#img").attr("src", $("#img").attr("src") + 1);
}
function afterLogin(data) {
if (data=="ok") {
window.location.href = "/Home/Index";
}
else
{
$("#errorMsg").text(data);
changeCheckCode();
}
}
</script>
<style type="text/css">
* {
padding: 0;
margin: 0;
}
body {
text-align: center;
background: #4974A4;
}
#login {
width: 740px;
margin: 0 auto;
font-size: 12px;
}
#loginlogo {
width: 700px;
height: 100px;
overflow: hidden;
background: url(‘/Content/Images/login/logo.png‘) no-repeat;
margin-top: 50px;
}
#loginpanel {
width: 729px;
position: relative;
height: 300px;
}
.panel-h {
width: 729px;
height: 20px;
background: url(‘/Content/Images/login/panel-h.gif‘) no-repeat;
position: absolute;
top: 0px;
left: 0px;
z-index: 3;
}
.panel-f {
width: 729px;
height: 13px;
background: url(‘/Content/Images/login/panel-f.gif‘) no-repeat;
position: absolute;
bottom: 0px;
left: 0px;
z-index: 3;
}
.panel-c {
z-index: 2;
background: url(‘/Content/Images/login/panel-c.gif‘) repeat-y;
width: 729px;
height: 300px;
}
.panel-c-l {
position: absolute;
left: 60px;
top: 40px;
}
.panel-c-r {
position: absolute;
right: 20px;
top: 50px;
width: 222px;
line-height: 200%;
text-align: left;
}
.panel-c-l h3 {
color: #556A85;
margin-bottom: 10px;
}
.panel-c-l td {
padding: 7px;
}
.login-text {
height: 24px;
left: 24px;
border: 1px solid #e9e9e9;
background: #f9f9f9;
}
.login-text-focus {
border: 1px solid #E6BF73;
}
.login-btn {
width: 114px;
height: 29px;
color: #E9FFFF;
line-height: 29px;
background: url(‘/Content/Images/login/login-btn.gif‘) no-repeat;
border: none;
overflow: hidden;
cursor: pointer;
}
#txtUsername, #code, #txtPassword {
width: 191px;
}
#logincopyright {
text-align: center;
color: White;
margin-top: 50px;
}
a {
color: Black;
}
a:hover {
color: Red;
text-decoration: underline;
}
</style>
</head>
<body style="padding: 10px">
<div id="login">
<div id="loginlogo">
</div>
<div id="loginpanel">
<div class="panel-h">
</div>
<div class="panel-c">
<div class="panel-c-l">
@using (Ajax.BeginForm("CheckLogin", new { }, new AjaxOptions() { OnSuccess = "afterLogin" }, new { id = "loginForm" }))
{
<table cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td align="left" colspan="2">
<h3>
请使用OA系统账号登录
</h3>
</td>
</tr>
<tr>
<td align="right">
账号：
</td>
<td align="left">
<input type="text" name="LoginCode" id="LoginCode" class="login-text" />
</td>
</tr>
<tr>
<td align="right">
密码：
</td>
<td align="left">
<input type="password" name="LoginPwd" id="LoginPwd" value="123" class="login-text" />
</td>
</tr>
<tr>
<td>
验证码：
</td>
<td align="left">
<input type="text" class="login-text" id="code" name="vCode" value="1" />
</td>
</tr>
<tr>
<td></td>
<td>
<img id="img" src="/Login/ValidateCode/?id=1" style="float: left; height: 24px;" />
<div style="float: left; margin-left: 5px; margin-top: 10px;">
<a href="javascript:void(0)" onclick="changeCheckCode();return false;">看不清，换一张</a>
</div>
</td>
</tr>
<tr>
<td align="center" colspan="2">
<input type="submit" id="btnLogin" value="登录" class="login-btn" /><a href="/Login/FindPwd">找回密码</a>
<input type="checkbox" name="checkMe" value="1" />记住我
<span id="errorMsg"></span>
</td>
</tr>
</tbody>
</table>
}
</div>
<div class="panel-c-r">
<p>
请从左侧输入登录账号和密码登录
</p>
<p>
如果遇到系统问题，请联系网络管理员。
</p>
<p>
如果没有账号，请联系网站管理员。
</p>
<p>
......
</p>
</div>
</div>
<div class="panel-f">
</div>
</div>
<div id="logincopyright">
Copyright ? 2012 Yilian.com
</div>
</div>
</body>
</html>
登录页面展示：
2、控制器部分
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace WebApp.Controllers
{
public class LoginController : Controller
{
// GET: /Login/
CZBK.HeiMaOA.IBLL.IUserInfoService userInfoService { get; set; }
public ActionResult Index()
{
return View();
}
#region 用户登录
public ActionResult CheckLogin()
{
string validateCode = Session["validateCode"] == null ? string.Empty : Session["validateCode"].ToString();
if (string.IsNullOrEmpty(validateCode))
{
return Content("验证码错误！");
}
//清空防止暴力破解
Session["validateCode"] = null;
string requestCode = Request["vCode"];
if (!requestCode.Equals(validateCode, StringComparison.InvariantCultureIgnoreCase))
{
return Content("验证码错误！");
}
string userName = Request["LoginCode"];
string userPwd = Request["LoginPwd"];
//对用户名、密码进行过滤
var userInfo = userInfoService.LoadEntities(u => u.UName == userName && u.UPwd == userPwd).FirstOrDefault();
if (userInfo == null)
{
return Content("用户名密码错误!");
}
else
{
//Session["userInfo"] = userInfo; //普通方式
#region 利用Memcache模拟Session进行共享用户Session信息
//自己创建的SessionId，作为Memcache的Key
string sessionId = Guid.NewGuid().ToString();
//将用户的信息存储到Memcache中
CZBK.HeiMaOA.Common.MemcacheHelper.Set(sessionId, CZBK.HeiMaOA.Common.SerializerHelper.SerializerToString(userInfo));
//然后将自创的SessionId以Cookie的形式返回给浏览器，存储到浏览器端的内存中。
Response.Cookies["sessionId"].Value = sessionId;
#endregion
return Content("ok");
}
}
#endregion
#region 展示验证码
public ActionResult ValidateCode()
{
CZBK.HeiMaOA.Common.ValidateCode validateCode = new CZBK.HeiMaOA.Common.ValidateCode();
string code = validateCode.CreateValidateCode(4);
Session["validateCode"] = code;
byte[] buffer = validateCode.CreateValidateGraphic(code);
return File(buffer, "image/jpeg");
}
#endregion
}
}
二、访问页面先验证用户是否登录的解决办法：
1.新建BaseController，让需要验证的继承这个控制器即可：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using CZBK.HeiMaOA.Model;
namespace WebApp.Controllers
{
public class BaseController : Controller
{
public UserInfo LoginUser { get; set; }
/// <summary>
/// 执行控制器方法之前先执行该方法
/// 获取自定义SessionId的值，然后从Memcache中取出
/// </summary>
/// <param name="filterContext"></param>
protected override void OnActionExecuting(ActionExecutingContext filterContext)
{
bool isExt = false;
if (Request.Cookies["sessionId"] != null)
{
//获取自定义的SessionId
string sessionId = Request.Cookies["sessionId"].Value;
object obj = CZBK.HeiMaOA.Common.MemcacheHelper.Get(sessionId);
if (obj != null)
{
LoginUser = CZBK.HeiMaOA.Common.SerializerHelper.DeserializeToObject<UserInfo>(obj.ToString());
isExt = true;
}
}
if (!isExt) //用户没登录
{
filterContext.HttpContext.Response.Redirect("/Login/Index");
}
base.OnActionExecuting(filterContext);
}
}
}
2.示例：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace WebApp.Controllers
{
public class HomeController : BaseController
{
//
// GET: /Home/
public ActionResult Index()
{
if (LoginUser != null)
{
ViewData["userName"] = LoginUser.UName;
}
return View();
}
}
}
三、源码下载:
时间： 2024-10-22 17:06:02