Code:
public class ZipUtil { /** * 压缩文件/文件夹 * */ public static void compress(String srcFilePath, String destFilePath) { File src = new File(srcFilePath); if (!src.exists()) { throw new RuntimeException(srcFilePath + "不存在"); } File zipFile = new File(destFilePath); try { FileOutputStream fos = new FileOutputStream(zipFile); CheckedOutputStream cos = new CheckedOutputStream(fos, new CRC32()); ZipOutputStream zos = new ZipOutputStream(cos); String baseDir = ""; compressbyType(src, zos, baseDir); zos.close(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } private static void compressbyType(File src, ZipOutputStream zos, String baseDir) { if (!src.exists()) return; System.out.println("压缩" + baseDir + src.getName()); if (src.isFile()) { compressFile(src, zos, baseDir); } else if (src.isDirectory()) { compressDir(src, zos, baseDir); } } /** * 压缩文件 */ private static void compressFile(File file, ZipOutputStream zos, String baseDir) { if (!file.exists()) return; try { BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file)); ZipEntry entry = new ZipEntry(baseDir + file.getName()); zos.putNextEntry(entry); int count; byte[] buf = new byte[8019]; while ((count = bis.read(buf)) != -1) { zos.write(buf, 0, count); } bis.close(); } catch (Exception e) { // TODO: handle exception } } /** * 压缩文件夹 * */ private static void compressDir(File dir, ZipOutputStream zos, String baseDir) { if (!dir.exists()) return; File[] files = dir.listFiles(); if(files.length == 0){ try { zos.putNextEntry(new ZipEntry(baseDir + dir.getName() + File.separator)); } catch (IOException e) { e.printStackTrace(); } } for (File file : files) { compressbyType(file, zos, baseDir + dir.getName() + File.separator); } } /** * 解压文件/文件夹 */ public static void decompress(String srcPath, String dest) throws Exception { File file = new File(srcPath); if (!file.exists()) { throw new RuntimeException(srcPath + "所指文件不存在"); } ZipFile zf = new ZipFile(file); Enumeration entries = zf.entries(); ZipEntry entry = null; while (entries.hasMoreElements()) { entry = (ZipEntry) entries.nextElement(); System.out.println("解压" + entry.getName()); if (entry.isDirectory()) { String dirPath = dest + File.separator + entry.getName(); File dir = new File(dirPath); dir.mkdirs(); } else { // 表示文件 File f = new File(dest + File.separator + entry.getName()); if (!f.exists()) { //String dirs = FileUtils.getParentPath(f); String dirs = f.getParent(); File parentDir = new File(dirs); parentDir.mkdirs(); } f.createNewFile(); // 将压缩文件内容写入到这个文件中 InputStream is = zf.getInputStream(entry); FileOutputStream fos = new FileOutputStream(f); int count; byte[] buf = new byte[8192]; while ((count = is.read(buf)) != -1) { fos.write(buf, 0, count); } is.close(); fos.close(); } } } public static void main(String[] args) throws Exception { // compress("/Users/liyinlong/lyl/test","/Users/liyinlong/lyl/test.zip"); decompress("/Users/liyinlong/lyl/test.zip", "/Users/liyinlong/lyl/test"); } }
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