直接上代码:

  public class BaseUtils {
     /**
    * 指定解压单个文件(可循环调用)
    *
    *   @param zipFile 解压的文件路径含文件本身
    * @param descDir 解压到某个路径
    * @Author Maiza
    */
     private final static String dest_path = "E:\\tdmap\\img_w";

    public static void unZipFile(File zipFile, String descDir) {
          File pathFile = new File(descDir);
          OutputStream out = null;
         InputStream in = null;
          ZipFile zip = null;
          try {
                if (!pathFile.exists()) {
                pathFile.mkdirs();
             }
        //设置处理压缩包语言
        zip = new ZipFile(zipFile, Charset.forName("UTF-8"));
        //开始循环解压缩
        for (Enumeration entries = zip.entries(); entries.hasMoreElements(); ) {
            ZipEntry entry = (ZipEntry) entries.nextElement();
            String zipEntryName = entry.getName();
            in = zip.getInputStream(entry);
            String outPath = descDir + "\\" + zipEntryName;
            out = new FileOutputStream(outPath);
            byte[] buf1 = new byte[1024];
            int len;
            while ((len = in.read(buf1)) > 0) {
                out.write(buf1, 0, len);
            }
            //每次循环关闭一次流,避免资源泄露.如果不关闭,系统将一直占用资源.
            out.close();
            in.close();
        }
    } catch (Exception e) {

    } finally {
        try {
            out.close();
            in.close();
            zip.close();
        } catch (Exception e) {

        }
    }
}

public static void showDir(File dir) {
    if (dir.exists()) {
        //抽象路径名数组，这些路径名表示此抽象路径名表示的目录中的文件和目录。
        File[] files = dir.listFiles();
        if (null != files) {
            for (int i = 0; i < files.length; i++) {
                if (files[i].isDirectory()) {
                    showDir(files[i]);
                } else {
                    System.out.println(files[i]);
                    unZipFile(files[i], dest_path);
                }
            }
        }
    } else {
        System.out.println("文件不存在！");
    }
}

    public static void main(String[] args) {
        String source_path = "E:\\BaiduNetdiskDownload\\sichuan\\cia_w";
         showDir(new File(source_path));
      }
 }