Controller for custom update query using Spring Boot - spring-boot

Question

I am trying to make a rating counter on a website. When the like button is clicked, the rating value will be increased by one. I want to do this by using a custom update query. I have no idea how to write the controller class since this doesn't involve a request body. I tried to use patch mapping but obviously it's not right.
// model
#Data
#AllArgsConstructor
#NoArgsConstructor
#ToString
#Entity
#Table(name = "review")
public class Review implements Serializable{
private static final long serialVersionUID = -1467739098650796381L;
#Id
#GeneratedValue
#Column(name="REVIEWID")
Integer reviewId;
#Column(name="SUBJECT")
String subject;
#Column(name="RECOMMENDATION")
String recommendation;
#Column(name="RATING", columnDefinition = "integer default 0")
Integer rating;
#Column(name="TIMESTAMP")
String time;
}
//Repository
#Repository
public interface ReviewRepository extends JpaRepository<Review, Integer>{
#Modifying
#Query("UPDATE review set rating = rating + 1 WHERE reviewid = ?1")
void addOneRating(Integer reviewId);
}
//Service
public class ReviewService {
#Autowired
ReviewRepository reviewRepository;
public void addRating(Integer id) {
reviewRepository.addOneRating(id);
}}
//controller
#RestController
public class ReviewController {
#PatchMapping("/addRating/{id}")
public void addRating(#PathVariable Integer id) {
reviewService.addRating(id);
}}

Answer 1

u are returning nothing u should redirect to the page again after updating and u can use #PostMapping also u should write #Transactional top on ReviewRepository
#RestController
public class ReviewController {
#PatchMapping("/addRating/{id}")
public void addRating(#PathVariable Integer id) {
reviewService.addRating(id);
}}