How to transfer JSON from java servlet to mobile client on SWIFT?

Question

Java

Good day!
There is a Restful service, a web server and JAVA servlets. There is a mobile client on SWIFT.
Data is exchanged using json.
I got the data necessary for the user from the database, formed JSONObject (object id).
Could you tell me how then to send JSONObject to the client? Should it be encoded into bytes?
Or is JSONOblect not required here?
Thank you.

Answer 1

As a first approximation, it will look something like this

HttpServletResponse response;
response.setCharacterEncoding("UTF-8");
response.setContentType("application/json; charset=UTF-8");
PrintWriter writer = response.getWriter();
writer.print(...);

JSONObject needs to be serialized to string