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这个文件上传应该可以满足一般的需要了，其中的添加到数据库记录，您可以按需要省略掉。
代码：upload.aspx
<%@ Page Language="VB"%>
<% @ Import Namespace=" System.IO " %>
<% @ Import Namespace=" System.DATA " %>
<%@ import Namespace="System.Data.SqlClient" %>
<SCRIPT LANGUAGE = "VB" RUNAT = "SERVER">
Dim lstrFileFolder as string
Dim lstrFileFolder_1 as string
Dim lstrFileNamePath as string
Dim lstrFileNamePath_1 as string
Sub UploadFile_Clicked ( Sender as Object, e as EventArgs )
Dim lstrFileName as string
''''Dim lstrFileFolder as string
Dim CMDfilename as string ''''表单cmdfilename的值
CMDfilename = request("CMDfilename")
''''''''''''
''''''''''''
'''' 如果上传目录为空，就使用" upload "作为缺省上传目录
'''' 获得上传到服务器的目录名称
if dir.value <> "" then
lstrFileFolder_1 = dir.value & "/"
lstrFileFolder = trim((Server.MapPath(""))) & "\" & dir.value & "\"
else
lstrFileFolder_1 = "upload/"
lstrFileFolder = trim((Server.MapPath(""))) &"\upload\"
end if
'''' 获得文件名称
lstrFileName = loFile.PostedFile.FileName
'''' 注： loFile.PostedFile.FileName 返回的是
''''通过文件对话框选择的文件名，这之中包含了文件的目录信息
''''只能上传.xls文件
if instr(Path.GetFileName ( lstrFileName ),".xls")=0 and instr(Path.GetFileName ( lstrFileName ),".Xls")=0 and instr(Path.GetFileName ( lstrFileName ),".XLS")=0 then
MessageNotXLS.InnerHtml = "只能上传.xls文件"
MessageNotXLS.Style("color") = "red"
exit sub
end if
if CMDfilename = "random" then
dim lstrFileName111 as string = Path.GetFileName ( lstrFileName ) ''''获得原名
lstrFileName=now()
lstrFileName=replace(lstrFileName,"-","")
lstrFileName=replace(lstrFileName,":","")
lstrFileName=replace(lstrFileName," ","")
''''lstrFileName=lstrFileName+"."
lstrFileName=lstrFileName & right(Path.GetFileName ( lstrFileName111 ),len(Path.GetFileName ( lstrFileName111 ))-(instr(Path.GetFileName ( lstrFileName111 ),"."))+1)
else
lstrFileName = Path.GetFileName ( lstrFileName )
end if
'''' 去掉目录信息，返回文件名称
'''' 判断上传目录是否存在，不存在就建立
If ( not Directory.Exists ( lstrFileFolder ) ) Then
Directory.CreateDirectory ( lstrFileFolder )
End If
''''上传文件到服务器
lstrFileNamePath = lstrFileFolder & lstrFileName
lstrFileNamePath_1 = lstrFileFolder_1 & lstrFileName
'''' 得到上传目录及文件名称
loFile.PostedFile.SaveAs ( lstrFileNamePath )
'''' 获得并显示上传文件的属性
FileName.Text = lstrFileName
'''' 获得文件名称
FileType.Text = loFile.PostedFile.ContentType
'''' 获得文件类型
FileLength.Text = cStr ( loFile.PostedFile.ContentLength )
'''' 获得文件长度
FileUploadForm.visible = false
AnswerMsg.visible = true
'''' 显示上传文件属性
AddToDB()
End sub
''''添加记录信息到数据库，可以不要这步。
sub AddToDB()
Dim MyConnection As SQLConnection = New SQLConnection (ConfigurationSettings.AppSettings("ConnStr"))
Dim InsertCmd As String = "insert into chaoqi (title,filepath) values (@title,@filepath)"
Dim MyCommand As SqlCommand = new SqlCommand(InsertCmd, MyConnection)
MyCommand.Parameters.Add(New SqlParameter("@title", SqlDbType.NVarChar, 50))
MyCommand.Parameters("@title").Value = title.value
MyCommand.Parameters.Add(New SqlParameter("@filepath", SqlDbType.NVarChar, 50))
MyCommand.Parameters("@filepath").Value = lstrFileNamePath_1
MyCommand.Connection.Open()
Try
MyCommand.ExecuteNonQuery()
Message.InnerHtml = "<b>已添加记录</b><br>" & InsertCmd.ToString()
Catch Exp As SQLException
If Exp.Number = 2627
Message.InnerHtml = "错误：已存在具有相同主键的记录"
Else
Message.InnerHtml = "错误：未能添加记录，请确保正确填写了字段"
End If
Message.Style("color") = "red"
End Try
MyCommand.Connection.Close()
end sub
</SCRIPT>
<html>
<head>
<title>上传文件</title>
<link href="style/main.css" type="text/css" rel="stylesheet" />
</head>
<BODY>
<ASP:panel id = "FileUploadForm" visible = " true " runat = "server">
<form method = "post" enctype = "multipart/form-data" runat = "server">
<p>
</p>
<table style="BORDER-RIGHT: #999999 1px; BORDER-TOP: #999999 1px; BORDER-LEFT: #999999 1px; WIDTH: 100%; BORDER-BOTTOM: #999999 1px; BORDER-COLLAPSE: collapse; BACKGROUND-COLOR: white" bordercolor="#999999" cellspacing="0" cellpadding="3" rules="cols" border="1">
<tbody>
<tr>
<td bgcolor="#000084" colspan="2">
<font color="#ffffff"><b>超期记录文件上传（Excel文件）</b></font></td>
</tr>
<tr>
<td width="20%">
请输入该文件要显示的名称：</td>
<td>
<input id = "title" type = "text" runat = "server"></td>
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