后端：Spring安全JWT，

@CrossOrigin(origins = "http://localhost:4444", allowCredentials = "true")
    @GetMapping("/")
    public Flux<ServerSentEvent<List<UserResponse>>> getAll() throws CancelQueryException {
        return Flux.interval(Duration.ofSeconds(3))
                .flatMap(sequence -> {
                    List<UserResponse> data = null;
                    try {
                        data = userService.getAllUsers();
                        System.out.println("data: " + data);
                    } catch (CancelQueryException e) {
                        //   LOGGER.error("Error occurred while retrieving users", e);
                        throw new RuntimeException(e);
                    }
                    return Mono.just(ServerSentEvent.<List<UserResponse>>builder()
                            .id(String.valueOf(sequence))
                            .event("update")
                            .data(data)
                            .build());
                });
    }

字符串
前端：React

useEffect(() => {
    const token =
      "eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJld2ZhZXJnZSIsImlhdCI6MTY4ODEwNTg4MCwiZXhwIjoxNjg4NzEwNjgwfQ.V3d_1n7QElQZpPshH_UkkR707sLJlxqz7fYmqSJ3V-4";
    const config = {
      withCredentials: true,
      headers: {
        Authorization: `Bearer ${token}`,
      },
    };
    const url = "http://localhost:8558/monitoring-location/api/v1/admin/user/";
    try {
      const eventSource = new EventSource(url, config);

      eventSource.onmessage = (event) => {
        const receivedEvent = JSON.parse(event.data);
        console.log(receivedEvent);
      };
      console.log("running");

      return () => {
        console.log("close connecttion");
        eventSource.close(); // Đóng kết nối SSE khi component bị hủy
      };
    } catch (error) {
      console.log("error ----", error);
    }
  }, []);

型
令牌正确，但响应为ERROR 403
请帮帮我，谢谢
我正在使用SSE协议从服务器向FE发送数据，但收到错误403