Question

I m working on javaserver faces i had problem with checking the size of the image file uploaded ,can any one help me ?

Answer 1

you can use java.io.File.length() for getting size.

getting file size by java.io.File.length() is ok but it is slow .instead it you can use fileChannel’s size method.it is littlebit faster than java.io.File.length()

FileInputStream fis = null;
            try {
                File me = new File(your file path).getFile());
                fis = new FileInputStream(me);
                return fis.getChannel().size();
            } finally {
                fis.close();
            }