ZIP压缩和解压

用Java实现文件（夹）的ZIP格式压缩和解压（不考虑中文乱码问题）：

/** * ZIP压缩文件（夹） * @param sourcePath 要压缩的文件（夹）路径 * @param zipName 生成的ZIP文件名 * @throws FileNotFoundException 文件不存在 * @throws Exception 文件操作异常 */ public static void zip(String sourcePath,String zipName) throws FileNotFoundException, Exception{ ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipName)); File inputFile = new File(sourcePath); zip(out,inputFile,""); out.close(); } /** * ZIP压缩文件（夹） * @param out ZIP文件格式输出流 * @param file 要压缩的文件 * @param basePath 基础路径 * @throws Exception 文件操作异常 */ private static void zip(ZipOutputStream out, File file, String basePath) throws Exception { if (file.isDirectory()) { File[] fileList = file.listFiles(); out.putNextEntry(new ZipEntry(basePath + "/")); basePath = basePath.length() == 0 ? "" : basePath + "/"; for (int i = 0; i < fileList.length; i++) { zip(out, fileList[i], basePath + fileList[i].getName()); } } else { out.putNextEntry(new ZipEntry(basePath)); FileInputStream in = new FileInputStream(file); byte[] bs = new byte[10240]; int b; while ((b = in.read(bs)) != -1) { out.write(bs, 0, b); } in.close(); } } /** * 解压ZIP文件 * @param zipFilePath ZIP文件路径 * @param dest 解压后文件存放路径 * @throws FileNotFoundException ZIP文件不存在 * @throws IOException 文件操作异常 */ public static void unzip(String zipFilePath,String dest) throws FileNotFoundException, IOException{ ZipInputStream input=new ZipInputStream(new FileInputStream(zipFilePath)); File destFile=new File(dest); if(destFile==null || !destFile.exists()){ destFile.mkdirs(); } for (ZipEntry e; (e = input.getNextEntry()) != null; input.closeEntry()) { File file = new File(dest, e.getName()); if (e.isDirectory()) { file.mkdirs(); } else { FileOutputStream output = new FileOutputStream(file); byte[] bs = new byte[10240]; int len=0; while ((len=input.read(bs)) > 0) { output.write(bs, 0, len); } output.close(); } } input.closeEntry(); input.close(); }