ASP.重定向到目标页面或重定向到上一页后登录

Question

我使用asp.net MVC有以下问题:当管理员更新用户请求时，他将收到一封电子邮件，告诉他请求已经更新，并且在这封电子邮件中将有链接到页面http://www.domain.com/request。

要访问该页，用户必须登录，因此链接将重定向到登录页。登录后，用户被重定向到http://www.domain.com/welcome，登录后如何重定向到电子邮件发送的地址?

[HttpPost]
public ActionResult Login(LoginModel model, string returnUrl, bool createPersistentCookie)
{
    // Check if the Model is valid or not
    if (ModelState.IsValid)
    {
        using (GNEntities entities = new GNEntities())
        {
            string username = model.Email;
            string password = model.Password;
            // Now if our password was enctypted or hashed we would have done the
            // same operation on the user entered password here, But for now
            // since the password is in plain text lets just authenticate directly

            bool userValid = entities.Employee.Any(user => user.Email == username && user.Password == password && user.IsActive ==true);
            // User found in the database
            if (userValid)
            {
                FormsAuthentication.SetAuthCookie(username, createPersistentCookie); //false:not persistent cookie
                Employee e = (Employee)entities.Employee.FirstOrDefault(user => user.Email == username);

                if (e.Roles.Id==1 || e.RoleId == 3) // 3 = commercial
                {
                    return RedirectToAction("Index", "AdminIndex", new { Area = "AdminArea" });
                }
                else if (e.Roles.Id == 2 || e.Roles.Id ==4)
                {
                    int countryId = e.CountryId;
                    return RedirectToAction("Index", "Calendar", new { year = DateTime.Now.Year, countryId, Area = "EmpArea" });//with paramenters RedirectToAction("Index", new { id = currentcoupon.Companyid.id, Area="Admin" });
                }
            }
            else
            {
                ModelState.AddModelError("", "The email or password provided is incorrect or your account has been disabled.");
            }
        }
    }
    // If we got this far, something failed, redisplay form
    return View(model);

我试过了，但不工作:

if (returnUrl == null)
{
    int countryId = e.CountryId;
    return RedirectToAction("Index", "Calendar", new { year = DateTime.Now.Year, countryId, Area = "EmpArea" });
}
else
{
    return RedirectToAction(returnUrl, new {Area = "EmpArea"});
}

结果仍然不好:这是登录前的url domain.net/Login/Login?ReturnUrl=%2fEmpArea%2fTimesheet

，登录后生成此url domain.net/EmpArea/Login/EmpArea/Timesheet

它保留了登录区我不知道为什么

Answer 1

在您的登录代码中，在成功验证凭据之后，您将用户重定向到AdminIndex或Calendar。注意，Login动作有一个可以使用的returnUrl参数。

所以在你成功登录后，检查参数是否为空，并将用户重定向到那个URL:

if(!string.IsNullOrEmpty(returnUrl))
    return Redirect(returnUrl);