How to obtain file name and file size by improving provided Java code

Question

PrintWriter out = response.getWriter();
if (ServletFileUpload.isMultipartContent(request)) {
    List<FileItem> multiparts = new ServletFileUpload(new DiskFileItemFactory())
            .parseRequest(request);
    for(FileItem item : multiparts) {
        if (!item.isFormField()) {
            String name = new File(item.getName()).getName();
            item.write(new File(UPLOAD_DIRECTORY + File.separator + name));
            String fname = name;
        }
    }

How do I obtain the file name and file size in a JSP page from this servlet?

Possible duplicate of [How to get file size in Java](http://stackoverflow.com/questions/8721262/how-to-get-file-size-in-java) — Jobin, Dec 23 '16 at 08:32
Possible duplicate of [Get size of folder or file](http://stackoverflow.com/questions/2149785/get-size-of-folder-or-file) — Tom, Dec 23 '16 at 08:44

score 1 · Accepted Answer · answered Dec 23 '16 at 08:41

1

Use item.getSize() to get file size . You already have the filename. Alternatively you can use this to get filename

String fileName = item.getName();
if (fileName != null) {
    filename = FilenameUtils.getName(filename);
}

To pass this to JSP use response.setAttribute or session attributes.

answered Dec 23 '16 at 08:41

agent420

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yeah you are right i already have a filename....still i cant get a file size...... – simon asir Dec 23 '16 at 09:20
use getSize() as suggested. – agent420 Dec 23 '16 at 09:43
another problem,item.getsize() retrieves numbers like 123543 like this.i need to get filesize like a 12kbs, 2mb something like that – simon asir Dec 23 '16 at 09:50
The size is in bytes. Divide it by 1024 to get size in kB. – agent420 Dec 23 '16 at 09:51

How to obtain file name and file size by improving provided Java code

1 Answers1