如何从UserProfile获取自定义信息？-Java 学习之路

我在UserProfile中添加自定义字段UserType作为字符串 . 我想更改 login post method to get the value from UserType 并在TempData中传递此值 .

这是我在AccountController上的代码：

[HttpPost]
    [AllowAnonymous]
    [ValidateAntiForgeryToken]
        public ActionResult Login(LoginModel model, string returnUrl)
    {
        if (ModelState.IsValid && WebSecurity.Login(model.UserName, model.Password, persistCookie: model.RememberMe))
        {
            var context = new UsersContext();
            var currentUser = Membership.GetUser(User.Identity.Name);
            string username = currentUser.UserName;
            var user = context.UserProfiles.SingleOrDefault(u => u.UserName == username);
            var userType = user.UserType;

            TempData["UserType"] = user.UserName; //Taking UserType from User Profile to validate in _Layout
            return RedirectToLocal(returnUrl);
        }

        // If we got this far, something failed, redisplay form
        ModelState.AddModelError("", "The user name or password provided is incorrect.");
        return View(model); 
    }

我对这个方法进行调试，这是我的信息：

> **On WebSecurity.Login()** I can see the UserName and Password.
> **Var CurrentUser**  I can't get the value from User.Identity.Name
> **string Username** This error is displayed *Object reference not set to an instance of an object*. Application crash.

有人为此有一些解决方案吗？我是ASP.NET的新手，但是如果我实现自定义成员资格它可以工作，你怎么看？你能给我一些例子吗？感谢你们 .

解决方案：

`[HttpPost] [AllowAnonymous] [ValidateAntiForgeryToken] public ActionResult Login（LoginModel model，string returnUrl）{if（ModelState.IsValid && WebSecurity.Login（model.UserName，model.Password，persistCookie：model.RememberMe））{var context = new UsersContext（）; var user = context.UserProfiles.Where（u => u.UserName == model.UserName）; var userType = user.Select（m => m.UserType）;

TempData["UserType"] = user.UserName; //Taking UserType from User Profile to validate in _Layout
        return RedirectToLocal(returnUrl);
    }

    // If we got this far, something failed, redisplay form
    ModelState.AddModelError("", "The user name or password provided is incorrect.");
    return View(model); 
}`

1 回答

0
只是一个想法，万一我不能评论我的声誉bcoz，你为什么不直接使用 model.UserName 而不是 var currentUser = Membership.GetUser(User.Identity.Name);

这背后的原因是任何登录的人都将是当前的用户，您可以从数据库中检索其详细信息 .

更新

您可以使用
```
UserProfile User = udb.UserProfiles.Where(m => m.UserName == model.UserName).FirstOrDefault();
var userType=User.UserType; // this brings your UserType from database

// then you can use this as
TempData["UserType"]=userType;
```
希望这对你有所帮助！
回复于 2024-04-29T15:28:10+08:00

如何从UserProfile获取自定义信息？

1 回答

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