Hi,
I'd like to serve user avatar pics. I can store them in blobstore. I
think I can modify the blobstore example to make it work like this:
// sevlet which serves my images:
public class Serve extends HttpServlet {
private BlobstoreService blobstoreService =
BlobstoreServiceFactory.getBlobstoreService();
public void doGet(HttpServletRequest req, HttpServletResponse
res)
throws IOException {
BlobKey blobKey = new BlobKey(req.getParameter("img_id"));
blobstoreService.serve(blobKey, res);
}
}
// user jsp page:
<div>
<img src='img?img_id=<%= myUsername %>'></img>
</div>
this is all we really need, right? In my example, I can locate a
user's avatar image blob by using their unique username.
Is this a lot slower than just hosting the avatar on a static url like
on a php server for example?:
<img src='some/path/johndoe.jpg' />
I'm worried that every time a user's avatar is served, the
BlobstoreServiceFactory.getBlobstoreService() method needs to be
called and then a fetch from the datastore must be done - if I have a
few dozen such images to locate on a single page, am I going to be in
trouble?
Thanks
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