public static void saveZipFile(){
      try {
          ZipOutputStream zipout = new ZipOutputStream(new FileOutputStream("E:\\wangjing.zip"));         zipout.setEncoding("utf8");         zipout.putNextEntry(new ZipEntry("aaa/aa.json"));//往压缩包里添加aaa目上录和aaa目录下的aa.json,并将helloworld写入aaa.json         zipout.write("helloworld".getBytes());         zipout.close();     } catch (Exception e) {
          e.printStackTrace();     } }