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// gzip压缩String file = "/test.js";GzipParameters parameters = new GzipParameters();parameters.setCompressionLevel(Deflater.BEST_COMPRESSION);parameters.setOperatingSystem(3);parameters.setFilename(FilenameUtils.getName(file));parameters.setComment("Test file");parameters.setModificationTime(System.currentTimeMillis());FileOutputStream fos = new FileOutputStream(file + ".gz");try (GzipCompressorOutputStream gzos = new GzipCompressorOutputStream(fos, parameters); InputStream is = new FileInputStream(file)) { IOUtils.copy(is, gzos);}

// gzip解压String gzFile = "/test.js.gz";FileInputStream is = new FileInputStream(gzFile);try (GzipCompressorInputStream gis = new GzipCompressorInputStream(is)) { GzipParameters p = gis.getMetaData(); File targetFile = new File("/test.js"); FileUtils.copyToFile(gis, targetFile); targetFile.setLastModified(p.getModificationTime());}

// 压缩bz2String srcFile = "/test.tar";String targetFile = "/test.tar.bz2";FileOutputStream os = new FileOutputStream(targetFile);try (BZip2CompressorOutputStream bzos = new BZip2CompressorOutputStream(os); InputStream is = new FileInputStream(srcFile)) { IOUtils.copy(is, bzos);}

// 解压bz2String bzFile = "/test.tar.bz2";FileInputStream is = new FileInputStream(bzFile);try (BZip2CompressorInputStream bzis = new BZip2CompressorInputStream(is)) { File targetFile = new File("test.tar"); FileUtils.copyToFile(bzis, targetFile);}

// tar压缩public void tar() throws IOException { File srcDir = new File("/test"); String targetFile = "/test.tar"; try (TarArchiveOutputStream tos = new TarArchiveOutputStream( new FileOutputStream(targetFile))) { tarRecursive(tos, srcDir, ""); }}// 递归压缩目录下的文件和目录private void tarRecursive(TarArchiveOutputStream tos, File srcFile, String basePath) throws IOException { if (srcFile.isDirectory()) { File[] files = srcFile.listFiles(); String nextBasePath = basePath + srcFile.getName() + "/"; if (ArrayUtils.isEmpty(files)) { // 空目录 TarArchiveEntry entry = new TarArchiveEntry(srcFile, nextBasePath); tos.putArchiveEntry(entry); tos.closeArchiveEntry(); } else { for (File file : files) { tarRecursive(tos, file, nextBasePath); } } } else { TarArchiveEntry entry = new TarArchiveEntry(srcFile, basePath + srcFile.getName()); tos.putArchiveEntry(entry); FileUtils.copyFile(srcFile, tos); tos.closeArchiveEntry(); }}

// tar解压public void untar() throws IOException { InputStream is = new FileInputStream("/test.tar"); String outPath = "/test"; try (TarArchiveInputStream tis = new TarArchiveInputStream(is)) { TarArchiveEntry nextEntry; while ((nextEntry = tis.getNextTarEntry()) != null) { String name = nextEntry.getName(); File file = new File(outPath, name); //如果是目录，创建目录 if (nextEntry.isDirectory()) { file.mkdir(); } else { //文件则写入具体的路径中 FileUtils.copyToFile(tis, file); file.setLastModified(nextEntry.getLastModifiedDate().getTime()); } } }}

// 7z压缩public void _7z() throws IOException { try (SevenZOutputFile outputFile = new SevenZOutputFile(new File("/test.7z"))) { File srcFile = new File("/test"); _7zRecursive(outputFile, srcFile, ""); }}// 递归压缩目录下的文件和目录private void _7zRecursive(SevenZOutputFile _7zFile, File srcFile, String basePath) throws IOException { if (srcFile.isDirectory()) { File[] files = srcFile.listFiles(); String nextBasePath = basePath + srcFile.getName() + "/"; // 空目录 if (ArrayUtils.isEmpty(files)) { SevenZArchiveEntry entry = _7zFile.createArchiveEntry(srcFile, nextBasePath); _7zFile.putArchiveEntry(entry); _7zFile.closeArchiveEntry(); } else { for (File file : files) { _7zRecursive(_7zFile, file, nextBasePath); } } } else { SevenZArchiveEntry entry = _7zFile.createArchiveEntry(srcFile, basePath + srcFile.getName()); _7zFile.putArchiveEntry(entry); byte[] bs = FileUtils.readFileToByteArray(srcFile); _7zFile.write(bs); _7zFile.closeArchiveEntry(); }}

 // 7z解压public void un7z() throws IOException { String outPath = "/test"; try (SevenZFile archive = new SevenZFile(new File("test.7z"))) { SevenZArchiveEntry entry; while ((entry = archive.getNextEntry()) != null) { File file = new File(outPath, entry.getName()); if (entry.isDirectory()) { file.mkdirs(); } if (entry.hasStream()) { final byte [] buf = new byte [1024]; final ByteArrayOutputStream baos = new ByteArrayOutputStream(); for (int len = 0; (len = archive.read(buf)) > 0;) { baos.write(buf, 0, len); } FileUtils.writeByteArrayToFile(file, baos.toByteArray()); } } }}

String tarFile = "/test.tar";InputStream is = new FileInputStream(tarFile);// 替换后会覆盖原test.tar，如果是windows可能会由于文件被访问而覆盖报错OutputStream os = new FileOutputStream(tarFile);try (TarArchiveInputStream tais = new TarArchiveInputStream(is); TarArchiveOutputStream taos = new TarArchiveOutputStream(os)) { ChangeSet changes = new ChangeSet(); // 删除"test.tar中"的"dir/1.txt"文件 changes.delete("dir/1.txt"); // 删除"test.tar"中的"t"目录 changes.delete("t"); // 添加文件，如果已存在则替换 File addFile = new File("/a.txt"); ArchiveEntry addEntry = taos.createArchiveEntry(addFile, addFile.getName()); // add可传第三个参数：true: 已存在则替换(默认值)， false: 不替换 changes.add(addEntry, new FileInputStream(addFile)); // 执行修改 ChangeSetPerformer performer = new ChangeSetPerformer(changes); ChangeSetResults result = performer.perform(tais, taos);}

// 使用factory动态获取归档流ArchiveStreamFactory factory = new ArchiveStreamFactory();String archiveName = ArchiveStreamFactory.TAR;InputStream is = new FileInputStream("/in.tar");OutputStream os = new FileOutputStream("/out.tar");// 动态获取实现类，此时ais实际上是TarArchiveOutPutStreamArchiveInputStream ais = factory.createArchiveInputStream(archiveName, is);ArchiveOutputStream aos = factory.createArchiveOutputStream(archiveName, os);// 其他业务操作
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// 使用factory动态获取压缩流CompressorStreamFactory factory = new CompressorStreamFactory();String compressName = CompressorStreamFactory.GZIP;InputStream is = new FileInputStream("/in.gz");OutputStream os = new FileOutputStream("/out.gz");// 动态获取实现类，此时ais实际上是TarArchiveOutPutStreamCompressorInputStream cis = factory.createCompressorInputStream(compressName, is);CompressorOutputStream cos = factory.createCompressorOutputStream(compressName, os);// 其他业务操作

// 解压 解包test.tar.gz文件String outPath = "/test";InputStream is = new FileInputStream("/test.tar.gz");// 先解压，所以需要先用gzip流包装文件流CompressorInputStream gis = new GzipCompressorInputStream(is);// 在解包，用tar流包装gzip流try (ArchiveInputStream tgis = new TarArchiveInputStream(gis)) { ArchiveEntry nextEntry; while ((nextEntry = tgis.getNextEntry()) != null) { String name = nextEntry.getName(); File file = new File(outPath, name); // 如果是目录，创建目录 if (nextEntry.isDirectory()) { file.mkdir(); } else { // 文件则写入具体的路径中 FileUtils.copyToFile(tgis, file); file.setLastModified(nextEntry.getLastModifiedDate().getTime()); } }}