Imports System.Data.SqlClient
Partial Class _Default
Inherits System.Web.UI.Page
Private Shared ReadOnly cs As String = "Data Source=.;Initial Catalog=master;User ID=sa;Password=Abcdefg1"
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Request.Cookies("username") Is Nothing Or Request.Cookies("userpass") Is Nothing Then
Return
End If
Dim username As String = HttpUtility.HtmlDecode(Request.Cookies("username").Value)
Dim userpass As String = HttpUtility.HtmlDecode(Request.Cookies("userpass").Value)
Using con As SqlConnection = New SqlConnection(_Default.cs)
con.Open()
Using cmd As SqlCommand = New SqlCommand("select count(*) from t_user where username = @username and userpass = @userpass", con)
cmd.Parameters.AddWithValue("username", username)
cmd.Parameters.AddWithValue("userpass", userpass)
Dim i As Integer = cmd.ExecuteScalar()
If i = 0 Then
Return
End If
End Using
End Using
Response.Redirect("~/Index.aspx")
End Sub
Protected Sub Login1_Authenticate(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.AuthenticateEventArgs) Handles Login1.Authenticate
Dim username As String = Me.Login1.UserName.Trim().ToLower()
Dim userpass As String = Me.Login1.Password.Trim().ToLower()
Dim b As Boolean = Me.Login1.RememberMeSet
Using con As SqlConnection = New SqlConnection(_Default.cs)
con.Open()
Using cmd As SqlCommand = New SqlCommand("select count(*) from t_user where username = @username and userpass = @userpass", con)
cmd.Parameters.AddWithValue("username", username)
cmd.Parameters.AddWithValue("userpass", userpass)
Dim i As Integer = cmd.ExecuteScalar()
If i = 0 Then
Return
End If
Response.Cookies("username").Value = HttpUtility.UrlEncode(username)
Response.Cookies("userpass").Value = HttpUtility.UrlEncode(userpass)
If b Then
Response.Cookies("username").Expires = DateTime.Now.AddDays(7) '设置cookie超时时间为7天
Response.Cookies("userpass").Expires = DateTime.Now.AddDays(7)
End If
Response.Redirect("~/Index.aspx") '登录成功跳转
End Using
End Using
End Sub
End Class
