Asp.Net上传文件示例

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<%@Import Namespace =Namespace="System.Data"%>

<%'@Import Namespace="System.Data.OleDb"%>

<%@Import Namespace =Namespace="System.Data.SqlClient"%>

Sub UploadFile()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>

</head>

上传文件

<Asp:button id="Upload" OnClick="UploadFile" Text="Upload"

runat="server"/>

</form><Hr>

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>