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### _Why are the changes needed?_
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Only exposing the jdbc url in server side, it is not needed to expose it in engine side and also not secure.
### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible
- [ ] Add screenshots for manual tests if appropriate
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Closes#1797 from turboFei/hide_url.
Closes#1797
f696b141 [Fei Wang] Only exposing jdbc url for server
Authored-by: Fei Wang <fwang12@ebay.com>
Signed-off-by: ulysses-you <ulyssesyou@apache.org>
c65df0fa36