<% @ Import Namespace=" System.IO " %> <html > <BODY > <SCRIPT LANGUAGE = "VB" RUNAT = "SERVER" > Sub UploadFile_Clicked ( Sender as Object, e as EventArgs ) Dim lstrFileName as string Dim lstrFileNamePath as string Dim lstrFileFolder as string '''' 如果上传目录为空,就使用" c:\ "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 = dir.value else lstrFileFolder = "c:\" 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 lstrFileName = Path.GetFileName ( lstrFileName ) '''' 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 '''' 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 End sub </SCRIPT > <ASP:panel id = "FileUploadForm" visible = " true " runat = "server" > <form method = "post" enctype = "multipart/form-data" runat = "server" > <h1 > 欢迎使用ASP.NET页面实现文件上传 </h1 > 请选择上传到服务器的文件名称: <input id = "loFile" type = "file" runat = "server" > <br > 请输入上传到服务器的目录名称: <input id = "dir" type = "text" runat = "server" > <br > <input type = "submit" value = "开始上传" OnServerClick = " UploadFile_Clicked" runat = "server" > <br > </form > </ASP:panel >
<ASP:panel id = "AnswerMsg" visible = " false " runat = "server" > 谢谢使用ASP.NET页面实现文件上传 <br > 成功上传 <ASP:label id = "FileName" runat = "server" /> <br > 文件大小 <ASP:label id = "FileLength" runat = "server" /> 字节 <br > 文件类型 <ASP:label id = "FileType " runat = "server" /> <br > </ASP:panel > </BODY ><% @ Import Namespace=" System.IO " %>
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