知识大全 ASP和C#隐藏文件下载路径的方法

Posted 2022-07-17 路径

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关于下载路径的隐藏都是通过传递一个数据库中的ID 然后在另外一张页面通过传递的ID在数据库中读出路径 c#中实现的方法（只需要 ASPX CS的代码就可以了） string sel_sql= select FileVisualPath from TabMailAttachFiles where FileID= +Request QueryString[ destFileName ] ToString(); 在ASP中的实现方法 <! #include file= conn asp ><% Response Buffer = true Response Clear dim url Dim fso fl flsize dim Dname Dim objStream ContentType flName isre url *********************************************调用时传入的下载文件名 m_ID=trim(request QueryString( ID )) set rs=Server CreateObject( adodb recordset )sql= select * from dataview where xsf=true and id= &m_IDrs open sql conn if not rs eof then Dname=rs( path )else Response Write( no found ) Response endend ifrs close:set rs=nothing ****************************************************************** If Dname<> Then ******************************下载文件存放的服务端目录 url=Server MapPath(Dname)else Response Write( no found ) Response end End If Set fso=Server CreateObject( Scripting FileSystemObject ) Set fl=fso getfile(url) flsize=fl size flName=fl name Set fl=Nothing Set fso=Nothing Set objStream = Server CreateObject( ADODB Stream ) objStream Open objStream Type = objStream LoadFromFile url Select Case lcase(Right(flName )) Case asf ContentType = video/x ms asf Case avi ContentType = video/avi Case doc ContentType = application/msword Case zip ContentType = application/zip Case xls ContentType = application/vnd ms excel Case gif ContentType = image/gif Case jpg jpeg ContentType = image/jpeg Case bmp ContentType = image/bmp Case ppt ContentType = application/vnd ms powerpoint Case mdb ContentType = application/x msaccess Case wav ContentType = audio/wav Case mp ContentType = audio/mpeg Case mpg mpeg ContentType = video/mpeg Case rtf ContentType = application/rtf Case ContentType = text/ Case txt ContentType = text/plain Case Else ContentType = application/octet stream End Select Response AddHeader Content Disposition attachment; filename= & flName Response AddHeader Content Length flsize Response Charset = UTF Response ContentType = ContentType Response BinaryWrite objStream Read Response Flush response Clear() objStream Close Set objStream = Nothing %> cha138/Article/program/net/201311/13313