Asp.Net上传文件示例（保存文件路径到数据库）

发布: 2007-6-30 23:38 | 作者: admin | 来源: | 查看: 28次 | 进入软件测试论坛讨论

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 =Namespace="System.Data"%>
<%@#@Import Namespace="System.Data.OleDb"%> 
<%@Import Namespace =Namespace="System.Data.SqlClient"%> 
<script language="VB" runat="server">
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>
<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>