Java tutorial
//package com.java2s; /* * Copyright (C) 2016 android@19code.com * * 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.Closeable; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.util.zip.GZIPOutputStream; public class Main { public static void zip(InputStream is, OutputStream os) { GZIPOutputStream gzip = null; try { gzip = new GZIPOutputStream(os); byte[] buf = new byte[1024]; int len; while ((len = is.read(buf)) != -1) { gzip.write(buf, 0, len); gzip.flush(); } } catch (IOException e) { e.printStackTrace(); } finally { closeIO(is, gzip); } } public static void closeIO(Closeable... closeables) { if (null == closeables || closeables.length <= 0) { return; } for (Closeable cb : closeables) { try { if (null == cb) { continue; } cb.close(); } catch (IOException e) { e.printStackTrace(); } } } }