springbootブロック取得controlerリターン値

@ControllerAdvice
public class ResponseBodyAnalysis implements ResponseBodyAdvice {

    @Override
    public Object beforeBodyWrite(Object body, MethodParameter arg1,
                                  MediaType arg2, Class arg3, ServerHttpRequest arg4,
                                  ServerHttpResponse arg5) {
        System.out.println(body+"   ++++++++++++++++++++++++++");
        return body;
    }

    @Override
    public boolean supports(MethodParameter arg0, Class arg1) {
        return true;
    }

}