Java tutorial
//package com.java2s; import java.io.ByteArrayOutputStream; import java.io.InputStream; public class Main { public static byte[] getBytes(InputStream inStream) throws Exception { ByteArrayOutputStream outStream = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; int len = 0; while ((len = inStream.read(buffer)) != -1) { outStream.write(buffer, 0, len); } outStream.close(); inStream.close(); return outStream.toByteArray(); } }