B4J Question Is There any framework can be used to sync DB local to web server database?

No, there are none. I had to write my own synchronization between SQlite & MySQL.
I'll see if the code can be shared or not (I'm afraid I made it too specific to my app).

If you write one, I can give you some help, and share some part of the code.

Why do you repeatedly ask the same question?

My answer is as it was last time. SymetricDS will do what you want to do: https://www.symmetricds.org/

jmon said:

No, there are none.

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Not exactly true. You can use jRDC2 to communicate with the remote database. You can use CloudKVS for a complete solution (not relevant if you want to synchronize with an existing db).