Here you can find the source of getBytes(InputStream input)
public static byte[] getBytes(InputStream input) throws IOException
//package com.java2s; /*// www . j av a 2 s . c om * Copyright (C) 2014 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; public class Main { public static byte[] getBytes(InputStream input) throws IOException { byte[] buffer = new byte[8 * 1024]; int count; ByteArrayOutputStream output = new ByteArrayOutputStream(); while ((count = input.read(buffer, 0, buffer.length)) != -1) { output.write(buffer, 0, count); } return output.toByteArray(); } }