login.aspx.vb

这是用ASP.NET和SQLserver编写的购物网站的程序

Imports System.Data.SqlClient
Imports System.Data

Public Class login
    Inherits System.Web.UI.Page

#Region " Web 窗体设计器生成的代码 "

    '该调用是 Web 窗体设计器所必需的。
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

    End Sub
    Protected WithEvents Textbox1 As System.Web.UI.WebControls.TextBox
    Protected WithEvents Textbox2 As System.Web.UI.WebControls.TextBox
    Protected WithEvents Image2 As System.Web.UI.WebControls.Image
    Protected WithEvents Image1 As System.Web.UI.WebControls.Image
    Protected WithEvents ImageButton1 As System.Web.UI.WebControls.ImageButton
    Protected WithEvents HyperLink6 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents HyperLink5 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents HyperLink4 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents HyperLink3 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents HyperLink1 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents HyperLink2 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents ImageButton2 As System.Web.UI.WebControls.ImageButton
    Protected WithEvents ImageButton3 As System.Web.UI.WebControls.ImageButton
    Protected WithEvents Hyperlink7 As System.Web.UI.WebControls.HyperLink
    Protected WithEvents Imagebutton4 As System.Web.UI.WebControls.ImageButton
    Protected WithEvents Label1 As System.Web.UI.WebControls.Label

    '注意: 以下占位符声明是 Web 窗体设计器所必需的。
    '不要删除或移动它。
    Private designerPlaceholderDeclaration As System.Object

    Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
        'CODEGEN: 此方法调用是 Web 窗体设计器所必需的
        '不要使用代码编辑器修改它。
        InitializeComponent()
    End Sub

#End Region
    Dim into As String = ConfigurationSettings.AppSettings("ConnectionString")
    Dim com As New SqlCommand
    Dim con As SqlConnection = New SqlConnection(into)
    Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        '在此处放置初始化页的用户代码

    End Sub

    Private Sub ImageButton2_Click(ByVal sender As System.Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton2.Click
        Dim cmd As New SqlCommand
        Dim message As New Mail.MailMessage
        Dim strscript As String
        con.Open()


        If Trim(Textbox1.Text).Length = 0 Then
            strscript = "<script language=javascript>alert('用户名不能为空！')</script>"
            RegisterClientScriptBlock("系统消息", strscript)
        Else
            cmd.CommandText = "select e_mail from account where userid='" & Textbox1.Text & "'"
            cmd.Connection = con
            Dim email As String = cmd.ExecuteScalar()
            cmd.CommandText = "select password from signon where userid='" & Textbox1.Text & "'"
            cmd.Connection = con
            Dim password = cmd.ExecuteScalar()
            message.From = "[e-mail]"
            message.To = email
            message.Subject = "数码大世界"
            message.Body = "您在数码大世界的用户名是：" & Textbox1.Text & "  密码是：" & password
            message.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1")
            message.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", "cubicfive")
            message.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", "200343129")
            Mail.SmtpMail.SmtpServer = "smtp.163.com"
            Mail.SmtpMail.Send(message)

            strscript = "<script language=javascript>alert('您的密码已经发到您注册的邮箱，请您注意查收！')</script>"
            RegisterClientScriptBlock("系统消息", strscript)
        End If
        con.Close()

    End Sub
    Private Sub ImageButton3_Click(ByVal sender As System.Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton3.Click
        Response.Redirect("register.aspx")
    End Sub

    Private Sub ImageButton1_Click(ByVal sender As System.Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton1.Click
        Response.Redirect("webform1.aspx")
    End Sub

    Private Sub Imagebutton4_Click(ByVal sender As System.Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles Imagebutton4.Click
        con.Open()
        Dim strscript As String
        If Textbox1.Text = "" Then
            strscript = "<script language=javascript>alert('用户名不能为空！')</script>"
            RegisterClientScriptBlock("系统消息", strscript)
        Else
            If Textbox2.Text = "" Then
                strscript = "<script language=javascript>alert('密码不能为空！')</script>"
                RegisterClientScriptBlock("系统消息", strscript)
            Else
                com.CommandText = "select userid from signon where userid ='" & Textbox1.Text & "' and password='" & Textbox2.Text & "'"
                com.Connection = con
                Dim a As String = com.ExecuteScalar()
                If a = "" Then
                    strscript = "<script language=javascript>alert('用户名或密码错误！')</script>"
                    RegisterClientScriptBlock("系统消息", strscript)
                Else
                    Session("username") = Textbox1.Text
                    Session("userpower") = 1
                    Response.Redirect("my.aspx")
                End If
            End If
        End If
        con.Close()
    End Sub

    Private Sub TextBox4_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)

    End Sub
End Class