asp.net程序开发，用户根据角色访问对应页面以及功能。
项目结构如下图：
根目录 Web.config 代码：
<?xml version="1.0" encoding="utf-8"?>
<!--
有关如何配置 ASP.NET 应用程序的详细消息，请访问
http://go.microsoft.com/fwlink/?LinkId=169433
-->
<configuration>
<system.web>
<compilation debug="true" targetFramework="4.0" />
<authentication mode="Forms">
<forms loginUrl="login.aspx"></forms>
</authentication>
<!--<authorization>
<allow users="*"></allow>
</authorization>-->
</system.web>
</configuration>
admin文件夹中 Web.config 代码：
<?xml version="1.0"?>
<configuration>
<system.web>
<authorization>
<allow roles="admin" />
<deny users="*"/>
</authorization>
</system.web>
</configuration>
teacher文件夹中 Web.config 代码：
<?xml version="1.0"?>
<configuration>
<system.web>
<authorization>
<allow roles="teacher" />
<deny users="*"/>
</authorization>
</system.web>
</configuration>
student文件夹中 Web.config 代码：
<?xml version="1.0"?>
<configuration>
<system.web>
<authorization>
<allow roles="student" />
<deny users="*"/>
</authorization>
</system.web>
</configuration>
Login.aspx中登录成功后设置Cookie，设置Cookie代码：
protected void SetLoginCookie(string username, string roles)
{
System.Web.Security.FormsAuthentication.SetAuthCookie(username, false);
System.Web.Security.FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(, username, DateTime.Now, DateTime.Now.AddDays(), false, roles, "/");
string hashTicket = FormsAuthentication.Encrypt(ticket);
HttpCookie userCookie = new HttpCookie(FormsAuthentication.FormsCookieName, hashTicket);
HttpContext.Current.Response.SetCookie(userCookie);
}
Global.asax 中进行身份验证：
protected void Application_AuthenticateRequest(object sender, EventArgs e)
{
HttpApplication app = (HttpApplication)sender;
HttpContext ctx = app.Context; //获取本次Http请求的HttpContext对象
if (ctx.User != null)
{
if (ctx.Request.IsAuthenticated == true) //验证过的一般用户才能进行角色验证
{
System.Web.Security.FormsIdentity fi = (System.Web.Security.FormsIdentity)ctx.User.Identity;
System.Web.Security.FormsAuthenticationTicket ticket = fi.Ticket; //取得身份验证票
string userData = ticket.UserData;//从UserData中恢复role信息
string[] roles = userData.Split(','); //将角色数据转成字符串数组,得到相关的角色信息
ctx.User = new System.Security.Principal.GenericPrincipal(fi, roles); //这样当前用户就拥有角色信息了
}
}
}