Servlet未访问google应用引擎api

import com.google.auth.oauth2.GoogleCredentials;
import com.google.cloud.storage.Storage;
import com.google.cloud.storage.StorageOptions;

public class MyServlet extends HttpServlet {
    private Storage storage;

    @Override
    public void init() throws ServletException {
        try {
            // 使用服务帐户密钥文件创建凭据
            GoogleCredentials credentials = GoogleCredentials.fromStream(
                    MyServlet.class.getResourceAsStream("/path/to/your/keyfile.json"));
            // 创建 Google Cloud Storage 客户端
            storage = StorageOptions.newBuilder().setCredentials(credentials).build().getService();
        } catch (IOException e) {
            throw new ServletException("Failed to initialize Google Cloud Storage client", e);
        }
    }

    // 其他方法...
}

import com.google.cloud.storage.Blob;
import com.google.cloud.storage.Bucket;

public void uploadFile(String bucketName, String objectName, InputStream inputStream, long size) throws IOException {
    Bucket bucket = storage.get(bucketName);
    Blob blob = bucket.create(objectName, inputStream, size);
    // 处理上传的文件...
}