在ASP.NET中,可以通过以下几种方式为已登录用户提供不同的视图。
方法一:基于角色的授权
[Authorize(Roles = "Admin")]
public ActionResult AdminView()
{
return View();
}
[Authorize(Roles = "User")]
public ActionResult UserView()
{
return View();
}
方法二:基于用户的授权
[Authorize(Users = "admin")]
public ActionResult AdminView()
{
return View();
}
[Authorize(Users = "user")]
public ActionResult UserView()
{
return View();
}
var user = // 获取已登录用户信息
FormsAuthentication.SetAuthCookie(user.Username, false);
方法三:自定义授权策略
可以通过自定义授权策略来实现更复杂的授权逻辑。
public class CustomIdentity : IIdentity
{
public string AuthenticationType { get; }
public bool IsAuthenticated { get; }
public string Name { get; }
public CustomIdentity(string username)
{
// 设置身份验证类型和是否已验证的属性
AuthenticationType = "CustomAuthentication";
IsAuthenticated = true;
// 设置用户名
Name = username;
}
}
public class CustomPrincipal : IPrincipal
{
public IIdentity Identity { get; }
public CustomPrincipal(string username)
{
Identity = new CustomIdentity(username);
}
public bool IsInRole(string role)
{
// 检查用户是否属于指定的角色
return // 判断用户角色的逻辑;
}
}
var user = // 获取已登录用户信息
var customPrincipal = new CustomPrincipal(user.Username);
Thread.CurrentPrincipal = customPrincipal;
HttpContext.Current.User = customPrincipal;
[CustomAuthorize(Roles = "Admin")]
public ActionResult AdminView()
{
return View();
}
[CustomAuthorize(Roles = "User")]
public ActionResult UserView()
{
return View();
}
public class CustomAuthorizeAttribute : AuthorizeAttribute
{
protected override bool AuthorizeCore(HttpContextBase httpContext)
{
var user = httpContext.User.Identity.Name;
var roles = Roles.Split(',');
// 检查用户是否属于指定的角色
return // 判断用户角色的逻辑;
}
}
请注意,以上代码只是示例,实际使用时需要根据具体需求进行适当调整。