java从https网址中获取zip压缩包并解析

Question

从一个https的url获取zip压缩包，压缩包里面是多个excel文件，excel文件包含两个不同的sheet，字段不一样，要解析成java对象。
excel文件是要密码的，代码中的url获取的压缩包中的exce密码是91440300555442072M。
目前能从url中获取流，但是转为zipInputStream后，总是为空。

 URL url = new URL("https://pubapi.holytax.com/pre/xz/sstfpgj?uid=764a332f16d1291ad2fd1d6c08d177ff");

        SSLContext sslContext = SSLContext.getInstance("SSL", "SunJSSE");
        // 创建SSLContext对象，并使用我们指定的信任管理器初始化
        TrustManager[] tm = {new MyX509TrustManager()};
        sslContext.init(null, tm, new java.security.SecureRandom());
        HostnameVerifier ignoreHostnameVerifier = (s, sslsession) -> {
            log.warn("Hostname is not matched for cert.");
            return true;
        };
        HttpsURLConnection.setDefaultHostnameVerifier(ignoreHostnameVerifier);
        HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
        HttpsURLConnection httpsURLConnection = (HttpsURLConnection) url.openConnection();
        httpsURLConnection.setConnectTimeout(6000);
        httpsURLConnection.setReadTimeout(6000);

        int code = httpsURLConnection.getResponseCode();
        if (code != HttpURLConnection.HTTP_OK) {
            throw new Exception("文件读取失败");
        }

        ZipInputStream zipInputStream = new ZipInputStream(new BufferedInputStream(httpsURLConnection.getInputStream()), Charset.forName("GBK"));
        //   这里每次读取都是空？？？
        while (zipInputStream.getNextEntry() != null) {

        }

Answer 1

访问url直接返回的是一个zip的压缩文件？