JAVA压缩文件和解压缩文件

public static void main(String[] args) throws IOException{try{ZipOutputStream zipOutStream = new ZipOutputStream(new FileOutputStream(new File("E://aa.rar")));// 创建目录级文件名ZipEntry e = new ZipEntry("aa\\aa.jpg");zipOutStream.putNextEntry(e);InputStream is = new FileInputStream("E:\\aa.jpg"); // 文件流int len = 0;while ((len = is.read()) != -1)zipOutStream.write(len);// 写入ZIP对象is.close();e = new ZipEntry("aa\\aaa.jpg");zipOutStream.putNextEntry(e);is = new FileInputStream("E:\\aa.jpg");len = 0;while ((len = is.read()) != -1)zipOutStream.write(len);is.close();// 如果是上ZIP多个文件可以递归zipOutStream.finish();zipOutStream.flush();zipOutStream.close();/** * 解压缩 */File file = new File("E://aa.rar");// 压缩文件ZipFile zipFile = new ZipFile(file);// 实例化ZipFile，每一个zip压缩文件都可以表示为一个ZipFile// 实例化一个Zip压缩文件的ZipInputStream对象，可以利用该类的getNextEntry()方法依次拿到每一个ZipEntry对象ZipInputStream zipInputStream = new ZipInputStream(new FileInputStream(file));ZipEntry zipEntry = null;while ((zipEntry = zipInputStream.getNextEntry()) != null){String fileName = zipEntry.getName();File temp = new File("D:\\unpackTest\\" + fileName);if (!temp.getParentFile().exists())temp.getParentFile().mkdirs();OutputStream os = new FileOutputStream(temp);is = zipFile.getInputStream(zipEntry);len = 0;while ((len = is.read()) != -1)os.write(len);os.close();is.close();}zipInputStream.close();}catch (FileNotFoundException e){e.printStackTrace();}}