After storing blob (byte[]) to Google App Engine datastore, I get a '?' appended to my data after same data fetching from Datastore.
I have an idea, that this has to do with encoding, Since I am not sure what GAE default encoding is, so I tried several Charsets and I get different result, I thought if I share this, I could get more light to the issue.
In my DBHelper class (Util to save and get data), When I initially persisted data with:
Entity resultEntity = new Entity("Entity");
resultEntity.setProperty("HtmlResult", new Blob(str.getBytes()))
I get a '?' appended to the end of my result (data fetched from Local datastore)
After changing my code to below :
resultEntity.setProperty("HtmlResult", new Blob(str.getBytes(Charset.forName("UTF-8"))));
Then I get �� appended to the result.
Also, I think when I used ISO-8859-1, I had � . Sorry for not been sure but I had to deploy to GAE everytime before I can test.
This question is related to Datastore in Hosted GAE- Google app engine appends '?' character during data retrieval but not directly.
Please kindly give your suggestions.
FY: I also tried
<env-variables>
<env-var name="DEFAULT_ENCODING" value="UTF-8" />
</env-variables>
Please note that I do not have this problem on my local machine, only when I deploy and test my app on Google app engine.
