Asp.net mvc asp.net mvc中的会话状态

我想知道如何在asp.net mvc的简单登录注销中使用会话状态

我的控制器中有一段代码，是我从mysql数据库中检索到的，用于会话登录。但我真的不知道如何操作它

<AcceptVerbs(HttpVerbs.Post)> _
Function Index(ByVal username As String, ByVal password As String, ByVal department As String) As ActionResult
    Dim user As DataTable
        user = Account.userSelect(username:=username, password:=password, department:=department)
    If user.Rows.Count = 0 Then
        Return RedirectToAction("Index", "Home")
    Else
        Session("username") = user.Rows(0).Item("username")
        Session("department") = user.Rows(0).Item("department")
        Return RedirectToAction("News", "Administration")
    End If
 End Function

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谢谢大家!

我建议您查看asp.net mvc的表单身份验证：