How to handle database connection exception globally in springboot application?

Question

I have a springboot + postgres application. I want to handle database failure exception globally and need to store request in file system. Is there any way in springboot application to catch ConnectionException globally?

Answer 1

import javax.ws.rs.core.Response;

   import javax.ws.rs.ext.ExceptionMapper;
   import javax.ws.rs.ext.Provider;

   @Provider
   public class ExceptionHandler  implements ExceptionMapper<ConnectionException > {
  
  @Override
  public Response toResponse(Exception exception) {
    //insert code here
    return Response.ok().build();
  }
}