把下面的代码保存为Upload.aspx即可运行（事先在同目录下建立一个Upload文件夹保存上传的文件，再建立一个数据库、表Upload，字段ID：自动编号，FilePath：文本型）：
<%@Import Namespace="System.Data"%>
<%'@Import Namespace="System.Data.OleDb"%> <!--Access数据库用这个-->
<%@Import Namespace="System.Data.SqlClient"%> <!--SQL Server数据库用这个-->
<script language="VB" runat="server">Sub UploadFile(sender As Object, e As EventArgs) Dim FileExt FileExt = LCase(Right(Trim(FileUp.Value),3)) If FileExt = "gif" Or FileExt = "jpg" Or FileExt = "bmp" Or FileExt = "png" Or FileExt = "tif" Or LCase(Right(Trim(FileUp.Value),4)) = "jpeg" Then If FileUp.PostedFile.ContentLength = 0 Then FileInfo.Visible = False Exit Sub Else FileInfo.Visible = True End If FSize.Text = CStr(FileUp.PostedFile.ContentLength) FName.Text = FileUp.PostedFile.FileName Dim FileSplit() As String = Split( FileUp.PostedFile.FileName, "\" ) Dim FileName As String = FileSplit(FileSplit.Length-1) FileUp.PostedFile.SaveAs( Server.MapPath(".") & "\Upload\" & FileName )'把文件路径写入数据库 By Dicky 2005-7-12 9:26:29' Access数据库用这个' Dim objCommand As OleDbCommand ' Dim objConnection As OleDbConnection' objConnection = New OleDbConnection("Provider=Microsoft.Jet.OleDb.4.0;Data Source="+Server.MapPath("Upload.mdb"))' objCommand = New OleDbCommand("Insert Into Upload (FilePath) Values ('Upload/"+FileName+"')" , objConnection) ' Access数据库用这个' SQL Server数据库用这个 Dim objCommand As SqlCommand Dim objConnection As SqlConnection objConnection = New SqlConnection("Server=localhost;Uid=sa;Pwd=;Database=Shat_edg") objCommand = New SqlCommand("Insert Into Upload (FilePath) Values ('Upload/"+FileName+"')" , objConnection) ' SQL Server数据库用这个 objConnection.Open() objCommand.ExecuteNonQuery() objConnection.Close()'把文件路径写入数据库 By Dicky 2005-7-12 9:26:29 Dim Exts() As String = Split( FileName, "." ) Dim Ext As String = LCase(Exts(Exts.Length-1)) If Ext <> "jpg" And Ext <> "jpeg" And Ext <> "gif" And Ext <> "txt" And Ext <> "htm" And Ext <> "html" Then FDisplay.Visible = False Else FDisplay.Text = "<A Target='_blank' HREF='Upload/" & _ FileName & "'>上传文件</A>" End If Response.Write("上传成功！") Else' Msgbox("对不起，只能上传扩展名为gif、jpg、bmp、png、tif或jpeg等图片文件！",65,"a") Response.Write("对不起，只能上传扩展名为gif、jpg、bmp、png、tif或jpeg等图片文件！") End If
End Sub</script><Html><head><title>文件上传</title></head><Body BgColor=White><H3>上传文件<Hr></H3><Form Name="Form1" Enctype="multipart/form-data" runat="server">上传文件<Input Type="File" id="FileUp" runat="server"><P><Asp:button id="Upload" OnClick="UploadFile" Text="Upload" runat="server"/></form><Hr><Div id="FileInfo" Visible="False" runat="server">上传文件名 <Asp:Label id="FName" runat="server"/><br>上传文件大小 <Asp:Label id="FSize" runat="server"/><br><Asp:Label id="FDisplay" runat="server"/></Div></Body></Html>