Sohailia,
I think you will have to deal with granting the applet the permissions to
read from the browse the local file system and read a file. By default I
do not think that the JRE will allow this. All users will have to grant
the permissions for doing this. It would then create a security hole on
the user's machines.
You can imagine the dangers of loading an applet that reads through your
files and then sends back sensitive documents to a server. Though your
applet might be written to download a user selected file, the user might
later run a malicious applet that could steal data.
-Richard
At 03:48 PM 8/31/01 -0700, you wrote:
>Rather than using html requests (I only assume this because you're talking
>about multipart and such things) I would suggest that you have the servlet
>listening on a socket. Connect to that socket with the applet and then send
>the files in and out with byte streams. As long as you're not behind a
>firewall then this would be the best I think.
>
>If you, or your projected users, are behind a firewall then you may have to
>resort to HTML and do what the previous poster told you.
>
>Hope this helps!
>Matt
>
>
>Quoting Bo Xu <[EMAIL PROTECTED]>:
>
> > Sohaila Roberts wrote:
> >
> > > Hi, I'm trying to figure out how to go about creating a servlet that
> > > uploads a file whose filename has been gotten by an applet, which
> > then
> > > connects to the servlet. I've looked through the archive's multple
> > pages
> > > of file upload questions and i'm still confused. I've even gone
> > through
> > > the MultipartRequest example in the java servlet book by oreilly..
> > >
> > > I just want the user to click a button, enter/select the filename,
> > applet
> > > connects to servlet, applet sends filename to servlet, servlet
> > uploads
> > > file and stores it as a 'File', servlet connects to database and
> > chucks it
> > > in there. I've got everything thing working except the 'servlet
> > uploads
> > > file and stores it as a File'.
> > >
> > > Any suggestions as to whether i can do this, and if I can how do I do
> > it?
> > >
> > > After I figure out how/if this is possible I'm then going to have to
> > > figure out the reverse (user tells applet they want to down load
> > > file, enters filename, applet sends file name to servlet, servlet
> > > tells database to chuck out file to servlet, servlet downloads file
> > to
> > > user)
> > >
> > > Thanks in advance :)
> > >
> > > Sohaila
> > > [...]
> >
> > good reference email for you :-)
> >
> > ************************************************************
> > You'll need to package your data in a MIME message. There may be
> > something
> > in the O'Reilly package for that; if not, you can use JavaMail,
> > available
> > at,
> > http://java.sun.com/products/javamail/index.html
> >
> > Look specifically at the javax.mail.internet package, and all the
> > Mime*
> > classes.
> >
> > -- Bill K.
> >
> > > -----Original Message-----
> > > From: Bo Xu [mailto:[EMAIL PROTECTED]]
> > > Sent: Friday, May 11, 2001 8:07 AM
> > > To: [EMAIL PROTECTED]
> > > Subject: Re: Posting "multipart/form-data"
> >
> >
> > ... I can use multipart/form-data with Jason Hunter's API
> > > com.oreilly.servlet.MultipartRequest, in the client I use a HTML
> > Form
> > > from his book...
> >
> > > now I want to upload a file to MyServlet from a Java Application(or
> > > a Java Applet), I guess I need to use (Http)URLConnection,
> > > but I don't know how to use it...
> >
> > > Bo
> > > may.11, 2001
> > ****************************************************************
> >
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> >
>
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