Nice blog post to workaround the save to BlogStore limitation. I have been using the upload --> BlogStore --> image processing --> DataStore as a simple a safe workaround. I just wish the GAE API would allow to save back a processed image to the BlogStore. Are you guys aware of an enhancement request for that?
Cheers, Jerome On Oct 29, 11:19 am, Jeremy Blythe <[email protected]> wrote: > After you've manipulated the image you need to write the new image back to > the Blobstore using an HTTP multi-part/formdata POST. You can do this with > the URLFetchService. > > I do this on my site and have just put a new blog entry up about it > here:http://jeremyblythe.blogspot.com/2010/10/manipulating-images-in-blobs... > > <http://jeremyblythe.blogspot.com/2010/10/manipulating-images-in-blobs...> > J. > > > > > > > > On Fri, Oct 15, 2010 at 8:44 PM, davisnog <[email protected]> wrote: > > I got this example from the site: > >http://code.google.com/intl/en/appengine/docs/java/images/overview.html > > > I'm using the API in this way: > > BlobKey blobKey = blobs.get("image"); > > > ImagesService imagesService = > > ImagesServiceFactory.getImagesService(); > > Image oldImage = > > ImagesServiceFactory.makeImageFromBlob(blobKey); > > Transform resize = ImagesServiceFactory.makeResize(200, > > 300); > > > Image newImage = imagesService.applyTransform(resize, > > oldImage); > > > String urlimg = images.getServingUrl(newImage.getBlobKey()); > > > my .jsp > > > <img src ="urlimg" /> > > > when I invoke the method: > > > images.getServingUrl(newImage.getBlobKey()); > > > newImage.getBlobKey() is always null. > > > I'm looking to manipulate the image and then return the image url. > > > How could I be doing? > > > -- > > You received this message because you are subscribed to the Google Groups > > "Google App Engine for Java" group. > > To post to this group, send email to > > [email protected]. > > To unsubscribe from this group, send email to > > [email protected]<google-appengine-java%2B > > [email protected]> > > . > > For more options, visit this group at > >http://groups.google.com/group/google-appengine-java?hl=en. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
