Missing @Controller or @RestController on the class

[oneturkmen]

The following class uses @PostMapping and is missing @Controller or @RestController on the class level:

https://github.com/EdisonChou/EDC.SpringCloud.Samples/blob/9bc60a7ea9664a121e7ddb34b096c4d008ce8725/src/part5_zuul/file-service/src/main/java/com/mbps/cd/fileservice/web/FileUploadController.java#L19

Reference: https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/web/bind/annotation/RequestMapping.html