Blocked By CORS policy error even after adding @CrossOrigin

[Nathan Milota]

Here is my controller class.

@RestController
@CrossOrigin(origins="*")
public class SeatController {
	
	@Autowired
	private SeatService service;
	
	
	@PostMapping("/api/addSeat")
	public Seat addSeat(@RequestBody Seat seat) {
		return service.saveSeat(seat);
	}
	
	@GetMapping("/api/getSeatsByVenueId/{venueId}")
	public List<Seat> findSeatsByVenueId(@PathVariable long venueId){
		return service.findSeatsByVenueId(venueId);
	}

}

Here is what I'm doing in Angular


addSeat(seat: Seat){    return this.http.post("http://localhost:8080/api/addSeat",seat)  }


No matter what I do or what I name it, it is being blocked by CORS policy.   I don't understand why.  Every other program I made, the @CrossOrigin annotation fixed it.  Why is it not working?

[Himai Minh]

I guess you may need to add a WebMvcConfigurer bean.
Here is an example :
https://github.com/Java-Techie-jt/spring-security-cors-example/blob/master/myPortal/src/main/java/com/javatechie/spring/cors/api/MyPortalApplication.java