Java tutorial
//package com.java2s; /** * Copyright 2014 Zhenguo Jin * <p/> * 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 * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * 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 final byte[] input2byte(InputStream inStream) { if (inStream == null) return null; ByteArrayOutputStream swapStream = new ByteArrayOutputStream(); byte[] buff = new byte[100]; int rc = 0; try { while ((rc = inStream.read(buff, 0, 100)) > 0) { swapStream.write(buff, 0, rc); } } catch (IOException e) { e.printStackTrace(); } return swapStream.toByteArray(); } }