String boundary =
req.getContentType().substring(req.getContentType().indexOf("boundary=")+9);
At 17:32 11.06.2001 +0530, you wrote:
>Hi michael
>
> protected Hashtable parseMulti(String boundary, ServletInputStream in)
>throws IOException {
>
>here what is the value for the String boundary.
>
>Sankar
>
>
>Michael Weller wrote:
>
> > U can use this method to do the parsing for u:
> >
> > protected Hashtable parseMulti(String boundary, ServletInputStream in)
> > throws IOException {
> >
> > int buffSize = 1024*8; // 8K
> > Hashtable hash = new Hashtable();
> > int result;
> > String line;
> > String lowerline;
> > String boundaryStr = "--"+boundary;
> > ByteArrayOutputStream content;
> > String filename;
> > String contentType;
> > String name;
> > String value;
> >
> > byte[] b = new byte[buffSize];
> >
> > result = in.readLine(b,0,b.length);
> > // failure.
> > if (result == -1)
> > throw new IllegalArgumentException("InputStream truncated");
> > line = new String(b,0,0,result);
> > // failure.
> > if (!line.startsWith(boundaryStr))
> > throw new IllegalArgumentException("MIME boundary missing:
> "+line);
> > while (true) {
> > // Some initialization
> > filename = null;
> > contentType = null;
> > content = new ByteArrayOutputStream();
> > name = null;
> >
> > // get next line (should be content disposition)
> > result = in.readLine(b,0,b.length);
> > if (result == -1) return hash;
> > line = new String(b,0,0,result-2);
> > lowerline = line.toLowerCase();
> > if (!lowerline.startsWith("content-disposition"))
> > // don't know what to do, so we'll keep looking...
> > continue;
> > // determine what the disposition is
> > int ind = lowerline.indexOf("content-disposition: ");
> > int ind2 = lowerline.indexOf(";");
> > if (ind == -1 || ind2 == -1)
> > throw new IllegalArgumentException(
> > "Content Disposition line misformatted: "+line);
> > String disposition = lowerline.substring(ind+21,ind2);
> > if (!disposition.equals("form-data"))
> > throw new IllegalArgumentException(
> > "Content Disposition of "+disposition+" is not
> supported");
> > // determine what the name is
> > int ind3 = lowerline.indexOf("name=\"",ind2);
> > int ind4 = lowerline.indexOf("\"",ind3+7);
> > if (ind3 == -1 || ind4 == -1)
> > throw new IllegalArgumentException(
> > "Content Disposition line misformatted: "+line);
> > name = line.substring(ind3+6,ind4);
> > // determine filename, if any
> > int ind5 = lowerline.indexOf("filename=\"",ind4+2);
> > int ind6 = lowerline.indexOf("\"",ind5+10);
> > if (ind5 != -1 && ind6 != -1) {
> > filename = line.substring(ind5+10,ind6);
> > }
> >
> > // Whew! We now move onto the next line, which
> > // will either be blank, or Content-Type, followed by blank.
> > result = in.readLine(b,0,b.length);
> > if (result == -1) return hash;
> > line = new String(b,0,0,result-2); // -2 to remove \r\n
> > lowerline = line.toLowerCase();
> > if (lowerline.startsWith("content-type")) {
> > int ind7 = lowerline.indexOf(" ");
> > if (ind7 == -1)
> > throw new IllegalArgumentException(
> > "Content-Type line misformatted: "+line);
> > contentType = lowerline.substring(ind7+1);
> > // read blank header line
> > result = in.readLine(b,0,b.length);
> > if (result == -1) return hash;
> > line = new String(b,0,0,result-2); // -2 to remove \r\n
> > if (line.length() != 0) {
> > throw new IllegalArgumentException(
> > "Unexpected line in MIMEpart header: "+line);
> > }
> > } else if (line.length() != 0) {
> > throw new IllegalArgumentException(
> > "Misformatted line following disposition: "+line);
> > }
> >
> > //read content, implement readahead by one line
> > boolean readingContent = true;
> > boolean firstLine = true;
> > byte[] buffbytes = new byte[buffSize];
> > int buffnum = 0;
> >
> > result = in.readLine(b,0,b.length);
> > if (result == -1) return hash;
> > line = new String(b,0,0,result);
> > if (!line.startsWith(boundaryStr)) {
> > System.arraycopy(b,0,buffbytes,0,result);
> > buffnum = result;
> > result = in.readLine(b,0,b.length);
> > if (result == -1) return hash;
> > line = new String(b,0,0,result);
> > firstLine = false;
> > if (line.startsWith(boundaryStr)) {
> > readingContent = false;
> > }
> > } else {
> > readingContent = false;
> > }
> >
> > while (readingContent) {
> > content.write(buffbytes,0,buffnum);
> > System.arraycopy(b,0,buffbytes,0,result);
> > buffnum = result;
> > result = in.readLine(b,0,b.length);
> > if (result == -1) return hash;
> > line = new String(b,0,0,result);
> > if (line.startsWith(boundaryStr)) readingContent = false;
> > }
> > if (!firstLine) {
> > // -2 to trim \r\n
> > if (buffnum>2)
> > content.write(buffbytes,0,buffnum-2);
> > }
> >
> > //now set appropriate variable, populate hashtable
> > if (filename == null) {
> > if (hash.get(name) == null) {
> > String[] values = new String[1];
> > values[0] = content.toString();
> > hash.put(name,values);
> > } else {
> > Object prevobj = hash.get(name);
> > if (prevobj instanceof String[]) {
> > String[] prev = (String[])prevobj;
> > String[] newStr = new String[prev.length+1];
> > System.arraycopy(prev,0,newStr,0,prev.length);
> > newStr[prev.length] = content.toString();
> > hash.put(name,newStr);
> > } else {
> > //now what? I think this breaks the standard.
> > throw new IllegalArgumentException("failure in
> > parseMulti hashtable building code");
> > }
> > }
> > } else {
> > // Yes, we don't return Hashtable[] for multiple files of
> > same name. AFAIK, that's not allowed.
> > Hashtable filehash = new Hashtable(4);
> > filehash.put("name",name);
> > filehash.put("filename",filename);
> > if (contentType == null) contentType =
> > "application/octet-stream";
> > filehash.put("content-type",contentType);
> > filehash.put("content",content.toByteArray());
> > hash.put(name,filehash);
> > }
> > }
> > }
> >
> > i think it's self-explanatory how to retrieve the values out of the
> > returned Hashtable.
> > i prefer this to jason hunter's classes.
> >
> > -mw
> >
> > At 12:12 11.06.2001 +0530, you wrote:
> > >----- Original Message -----
> > >From: "Ovais Ahmad Khan" <[EMAIL PROTECTED]>
> > >To: <[EMAIL PROTECTED]>
> > >
> > > > now in the servlet's doPost method, i'm using the ServletInputStream to
> > > > get the data but it's giving me the data in raw format, with all the
> > > > headers,...
> > >
> > >That is why ServletInputStream is there. If you use this, you will have to
> > >read the data from the inputstream and parse this InputStream to get the
> > >file.
> > >
> > > > now does there exists some trick to get the real data (file) out of
> > > > this.
> > >
> > >There is no trick in doing this. Just parsing the multi part request.
> > >If you do not want to get into parsing the multi-part request, it is
> already
> > >done for you by Jason Hunter.
> > >His classes are available on the net at
> > >http://www.servlets.com/cos/index.html
> > >Jason has detailed these classes in his book Servlet Programming.
> > >
> > >Regds,
> > >Gokul
> > >
> > > >
> > > > thanks
> > > > --
> > > > Ovais
> > >
> > >_______________________________________________________________________
> ____
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> >
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>
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