java - Most effective way to write File to ServletOutputStream

Question

ServletOutputStream output = response.getOutputStream();
output.write(byte[]);

What is the most effective way to write File to javax.servlet.ServletOutputStream?

EDIT:

won't this be more effective if the NIO was used?

Answer 1

IOUtils.copy(in, out);
out.flush();
//...........
out.close(); // depends on your application

Where in is the FileInputStream and out is the SocketOutputStream. IOUtils is a utility from Commons IO module in Apache Commons.