Java UploadOptions类代码示例

import com.google.appengine.api.blobstore.UploadOptions; //导入依赖的package包/类
protected void dispatchUploadForm(
        HttpServletRequest req,
        HttpServletResponse resp, 
        String errorMsg
) throws ServletException, IOException {
    UploadOptions opts = UploadOptions.Builder
            .withGoogleStorageBucketName(GCS_BUCKET_NAME);
    String uploadUrl = blobstore.createUploadUrl("/upload", opts);

    req.setAttribute("uploadUrl", uploadUrl);
    if (errorMsg != null) {
        req.setAttribute("error", errorMsg);
    }

    req.getRequestDispatcher("/WEB-INF/upload-form.jsp").forward(req, resp);
}
 

import com.google.appengine.api.blobstore.UploadOptions; //导入依赖的package包/类
protected UploadOptions parseOptions(HttpServletRequest request) {
    UploadOptions options = UploadOptions.Builder.withDefaults();

    String maxPerBlob = request.getParameter("max_per_blob");
    if (maxPerBlob != null) {
        options.maxUploadSizeBytesPerBlob(Long.parseLong(maxPerBlob));
    }

    String maxAll = request.getParameter("max_all");
    if (maxAll != null) {
        options.maxUploadSizeBytes(Long.parseLong(maxAll));
    }

    String bucketName = request.getParameter("bucket_name");
    if (bucketName != null) {
        options.googleStorageBucketName(bucketName);
    }

    return options;
}
 

import com.google.appengine.api.blobstore.UploadOptions; //导入依赖的package包/类
@ApiMethod(
        name = "getCsUploadURL",
        path = "getCsUploadURL",
        httpMethod = ApiMethod.HttpMethod.POST
)
@SuppressWarnings("unused")
public GetCSuploadURLreturn getCsUploadURL(User googleUser) throws Exception {

    CryptonomicaUser cryptonomicaUser = UserTools.ensureCryptonomicaRegisteredUser(googleUser);
    //
    String imageUploadUrl = BlobstoreServiceFactory.getBlobstoreService().createUploadUrl(
            "/cs-user-image-upload",            // upload handler servlet address
            UploadOptions.Builder.withGoogleStorageBucketName(
                    Constants.GAE_PROJECT_DOMAIN // Cloud Storage bucket name (f.e. "cryptonomica-test.appspot.com")
            )
    );
    String imageUploadKey = randomAlphanumeric(9);
    //
    cryptonomicaUser.setImageUploadLink(imageUploadUrl);
    cryptonomicaUser.setImageUploadKey(imageUploadKey);
    //
    Key<CryptonomicaUser> cryptonomicaUserKey = ofy().save().entity(cryptonomicaUser).now();
    LOG.warning("Upload URL: " + imageUploadUrl);
    LOG.warning("Saved for user: " + cryptonomicaUserKey.getName());
    LOG.warning("With imageUploadKey: " + imageUploadKey);

    return new GetCSuploadURLreturn(imageUploadUrl, imageUploadKey, null);
}
 

import com.google.appengine.api.blobstore.UploadOptions; //导入依赖的package包/类
/**
 * Creates and invokes a URL for uploading a large blob to Google Cloud Storage.
 * Upon completion of the upload, a callback is made to the specified {@code callbackUrl}.<br>
 * Refer to {@link com.google.appengine.api.blobstore.BlobstoreService#createUploadUrl}.
 */
public static String getNewUploadUrl(String callbackUrl) {
    UploadOptions uploadOptions =
            UploadOptions.Builder.withDefaults()
                         .googleStorageBucketName(Config.GCS_BUCKETNAME)
                         .maxUploadSizeBytes(Const.SystemParams.MAX_FILE_LIMIT_FOR_BLOBSTOREAPI);

    return BlobstoreServiceFactory.getBlobstoreService()
                                  .createUploadUrl(callbackUrl, uploadOptions);
}
 

import com.google.appengine.api.blobstore.UploadOptions; //导入依赖的package包/类
public String getUploadUrl() {
  BlobstoreService blobstoreService = BlobstoreServiceFactory.getBlobstoreService();
  UploadOptions uploadOptions = null;
  String bucket = configManager.getGoogleStorageBucket();
  if (bucket == null || bucket.isEmpty()) {
    uploadOptions = UploadOptions.Builder.withDefaults();
  } else {
    uploadOptions = UploadOptions.Builder.withGoogleStorageBucketName(bucket);
  }
  return blobstoreService.createUploadUrl(configManager.getUploadHandlerUrl(), uploadOptions);
}