How to name a uploaded file in server

Question

Hi,
I am trying to upload files in to my server. Then save it with a unique name and process it.
The following codes can upload the file but I dont know how to save the file with a unique name and then pick up the unique name and process the file.
I need this because
1# Multiple people will upload files at the same time. Therefore I need some mechanism to mark individual file and process it.
Any help will be very much appreciated. Most importantly please be little collaborative. I am just one week old JSP boy :-).
try {
            List fileItemsList = servletFileUpload.parseRequest(request);
            DiskFileItemFactory diskFileItemFactory = new DiskFileItemFactory();
            diskFileItemFactory.setSizeThreshold(102400); /* the unit is bytes */
            File repositoryPath = new File("/temp");
            diskFileItemFactory.setRepository(repositoryPath);
            /* Iterating through the uploaded file*/
            Iterator it = fileItemsList.iterator();
            while (it.hasNext()){
                FileItem fileItem = (FileItem) it.next();
                /* Playing around with the uploaded file */
                getName = fileItem.getName(); /*File name provided by the browser*/
                fileSize = fileItem.getSize(); /*File size in Bytes*/
                File saveTo = new File("/upload_files");
                fileItem.write(saveTo);
               

Answer 1

merit wrote:
Hi,
Thanks. That should work but I was thinking of generating some thing random.
I think what ever i enter into "someUniqueName" then file will always be named as "someUniqueName". What would happen if 2 or more people uploads different file at the same time?Use the name of the original file. If File#exists() returns true, then suffix it with a counter or so.
You can find here an article about a file upload filter which contains under each a basic demonstration example with a servlet which does exactly that using FileUtil#uniqueFile(): [http://balusc.blogspot.com/2007/11/multipartfilter.html].