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在图像上传期间，我使用以下方法getBlobKey来获取图像的 BlobKey 并将其详细信息保存在数据库中。

private BlobKey getBlobKey(byte[] data, String fileName) {
        System.out.println("Inside getBlobKey....");
        GcsService gcsService = null;
        GcsFilename gcsFilename = null;
        String bucket = "nirantGallery";

        fileName = fileName + "_" + UUID.randomUUID().toString();

        try {
            gcsService = GcsServiceFactory.createGcsService();
            gcsFilename = new GcsFilename(bucket, fileName);
            GcsFileOptions.Builder options_builder = new GcsFileOptions.Builder();
            options_builder = options_builder.mimeType("image/jpeg");

            GcsFileOptions options = options_builder.build();
            GcsOutputChannel output = GcsServiceFactory.createGcsService().createOrReplace(gcsFilename, options);
            output.write(ByteBuffer.wrap(data));
            output.close();

            // Get serving url
            String gs_blob_key = "/gs/" + bucket + "/" + fileName;
            BlobKey blob_key = BlobstoreServiceFactory.getBlobstoreService().createGsBlobKey(gs_blob_key);
            ServingUrlOptions serving_options = ServingUrlOptions.Builder.withBlobKey(blob_key);
            String serving_url = ImagesServiceFactory.getImagesService().getServingUrl(serving_options);
            System.out.println("Serving URL: " + serving_url);

            return blob_key;
        } catch (Exception e) {
            System.out.println("Inside exception....");
            e.printStackTrace();
        } finally {
            gcsService = null;
        }
        return null;
    }

问题是当我在本地系统中运行它时，它可以工作并给我 localhost URL，比如

Serving URL: http://127.0.0.1:8888/_ah/img/encoded_gs_key:L2dzL25pcmFudEdhbGxlcnkvaW1hZ2VfMF9kNjlmOGFjMS05ZTUzLTRiNzUtOTI1ZC1hYzU0ZWQzNzJkNDk

但是当我部署和运行时它不起作用，检查登录服务器发现下面的详细信息。

Error for /nirat-admin-portal/addGallery
java.lang.NoClassDefFoundError: com/google/api/client/extensions/appengine/http/UrlFetchTransport
    at com.google.appengine.tools.cloudstorage.oauth.OauthRawGcsServiceFactory.<clinit>(OauthRawGcsServiceFactory.java:31)
    at com.google.appengine.tools.cloudstorage.GcsServiceFactory.createRawGcsService(GcsServiceFactory.java:59)
    at com.google.appengine.tools.cloudstorage.GcsServiceFactory.createGcsService(GcsServiceFactory.java:44)
    at com.google.appengine.tools.cloudstorage.GcsServiceFactory.createGcsService(GcsServiceFactory.java:40)
    at com.google.appengine.tools.cloudstorage.GcsServiceFactory.createGcsService(GcsServiceFactory.java:75)
    at com.sparks.nirant.datastore.DataStoreService.getBlobKey(DataStoreService.java:207)
    at com.sparks.nirant.datastore.DataStoreService.saveImageMapToDataStore(DataStoreService.java:183)
    at com.sparks.nirant.serviceImpl.AdminServiceImpl.addGallery(AdminServiceImpl.java:121)
    at com.sparks.nirant.server.AdminController.doPost(AdminController.java:297)

请协助。

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