What is the best way to return different types of ResponseEntity in Spring MVC or Spring-Boot

Question

I have written simple rest application using Spring MVC 4 (or Spring-Boot). Within the controller I have return ResponseEntity. But in some cases I want to give

Answer 1

You can also implement like this to return Success and Error on a same request mapping method,use Object class(Parent class of every class in java) :-

public ResponseEntity< Object> method() {                                                                                                                                                                                                                                                                                                                                                                                  
    boolean b = //  logic  here   
      if (b)  
        return new ResponseEntity< Object>(HttpStatus.OK);      
    else      
        return new ResponseEntity< Object>(HttpStatus.CONFLICT); //appropriate error code   
}