'==================================================== ==================== 'Using the ASP Unparalleled Upload / Download File' 'Function Description' Save the uploaded file data to the database, you can handle the form A plurality of uploaded files' Applicable to various databases, using ADO method connection database 'This example is an Access database: zj.mdb' table: tb_img (ID INT), Path Text (255) Save the Uploaded Directory ', FName Text (250) Save the uploaded file name, Type test (250) Save the type of upload file', the IMG OLE object saves uploaded file content '' ========= ============================================================================================================================================================================================================= =======
'==================================================== =================00============================================================================================ ======================================================= < Head>
file upload saves to the database </ title> </ head> <body> <form name = "form1" encty = "multipart / form-data" method = "post" action = "zj_up.asp" > <P> <input type = "file" name = "file"> <input type = "submit" name = "submit" value = "upload"> </ p> </ form> </ body> </ html ></p>
<p>'==================================================== ================= 'upload file Save to the database ASP page: zj_up.asp' '================== =========================================================================================== < % Response.expires = 0function f_bin2str (byval sbin) DIM II, ILEN, ICHR, IRE = "" if not isnull (sbin) Then Ilen = lenb (sbin) for ii = 1 To Ilen Ichr = MIDB (Sbin, II, 1) IF ASCB (ICHR)> 127 THEN IRE = IRE & CHR (ASCW (MIDB (Sbin, II 1, 1) & ICHR)) II = II 1 Else IRE = IRE & CHR (ASCB (ICHR)) END If next end if f_bin2str = IREEND FUNCTIONICONCSTR = "provider = microsoft.jet.OLEDb.4.0; Persist security info = false" & _ "; data source =" & server.mappath ("zj.mdb") ISQL = "tb_img" set iRe = Server.CreateObject ( "ADODB.Recordset") iRe.Open iSql, iConcStr, 1,3iLen = Request.TotalBytessBin = Request.BinaryRead (iLen) iCrlf1 = ChrB (13) & ChrB (10) iCrlf2 = iCrlf1 & iCrlf1iLen = INSTRB (1, sbin, ICRLF1) - 1ISPC = Leftb (SBI n, iln) sbin =</p>
<p>MIDB (Sbin, Ilen 34) ipos1 = INSTRB (Sbin, ICRLF2) - 1WHILE ipos1> 0 istr = f_bin2str (Leftb (Sbin, IPOS1)) ipos1 = ipos1 5 ipos2 = IPOSTRB (IPOS1, SBIN, ISPC) ipos3 = INSTR (istr, "; filename =" "" ") 12 IF iPOS3> 12 Then ISTR = MID (ISTR, IPOS3) IPOS3 = INSTR (ISTR, CHR (13) & chr (10) &" Content-Type: ") - 2 IFN = Left (ISTR, IPOS3) IFN <> "" "") = left (IFN, IFN, "/")) IRE ("FNAME") = MID (IFN, INSTRREV (IFN, "/") 1) IRE ("type") = MID (ISTR, IPOS3 18) IRE ("IMG"). Appendchunk MIDB (Sbin, IPOS1, IPOS2 - IPOS1) Ire.Update End If End IF sbin = midb (sbin, ipos2 ilen 34) ipos1 = instib (sbin, icrlf2) - 1Wendire.closset IRE = Nothing%> '=================== ================================================= Download ASP page of data: zj_down.asp '' ========================================= ========================== <% response.buffer = trueresponse.clear</p>
<p>Iconcstr = "provider = microsoft.jet.oledb.4.0; persist security info = false" & _ "; data source =" & _ ";" zj.mdb ") set IRE = Server.createObject (" adoDb.recordset " ISQL = "TB_IMG" IRE.Open ISQL, ICONCSTR, 1, 1RESPONSE.CONTENTTYPE = IRE ("Type") response.binaryWrite IRE ("IMG") IRE.Closset IRE = Nothing%></p></div><div class="text-center mt-3 text-grey">
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