hi
could you show me the entire sample code of using multipartRequest
to upload images ?
thanks in advance...
On Fri, 18 Aug 2000 12:48:43 +0200
Greg Ball <[EMAIL PROTECTED]> wrote:
> Huh??,
> Why is this necessary. I am able to upload images with multipartRequest
> without adding this extra code
>
> -Greg
>
> -----Original Message-----
> From: Sundeep Goswami [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, August 17, 2000 4:19 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Upload Image File
>
>
> Yes you can use the multipartRequest servlet to upload an image
> in the readNextPart() method you can check if contentType.indexOf("image")
> and do something like this
>
> // Get the blob locator and open an output stream for the blob
> theBlob = ((OracleResultSet)getBlobResult).getBLOB("image");
> blobStream = theBlob.getBinaryOutputStream();
>
> // Read a chunk of data from the sample file input stream,
> and
> write the
> // chunk into the blob column output stream. Repeat till
> file has
> been
> // fully read.
> byte[] bbuf = new byte[8 * 1024];
> int result;
> String line;
>
> // the point of this code from Hunter is to remove an
> // exraneous '\r\n' from the end of the servlet
> input stream
> boolean rnflag = false;
> while ((result = in.readLine(bbuf, 0, bbuf.length)) !=
> -1) {
>
> // Check for boundary
> if (result > 2 && bbuf[0] == '-' && bbuf[1] == '-') {
> // quick
> pre-check
> line = new String(bbuf, 0, result, "ISO-8859-1");
> if (line.startsWith(boundary)) break;
> }
> // Are we supposed to write \r\n for the last
> iteration?
> if (rnflag) {
> blobStream.write('\r'); blobStream.write('\n');
> rnflag = false;
> }
> // Write the buffer, postpone any ending \r\n
> if (result >= 2 &&
> bbuf[result - 2] == '\r' &&
> bbuf[result - 1] == '\n') {
> blobStream.write(bbuf, 0, result - 2); // skip the
> last 2 chars
> rnflag = true; // make a note to write them on the
> next iteration
> }
> else {
> blobStream.write(bbuf, 0, result);
> }
> }
> System.out.println("finished writing blob field
> 'image' in table \n");
> blobStream.close();
>
>
> hope this helps
>
> >From: Gagan Goel <[EMAIL PROTECTED]>
> >Reply-To: A mailing list about Java Server Pages specification and
> > reference <[EMAIL PROTECTED]>
> >To: [EMAIL PROTECTED]
> >Subject: Upload Image File
> >Date: Thu, 17 Aug 2000 19:43:43 +0530
> >
> >Is there any way to upload an image with MultiPartRequest (or
> > somehow else)?
> >
> >Gagan
> >
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