ERROR : org.springframework.web.util.NestedServletException

org.springframework.web.util.NestedServletException: Request processing failed; 
	nested exception is java.lang.IllegalStateException: 
    	Optional int parameter 'club_no' is present but cannot be translated into a null value 
        due to being declared as a primitive type. 
        Consider declaring it as object wrapper for the corresponding primitive type.

club_no를 받는데 null로 변환됨

 

해결 : 주소줄이랑 선언해준 변수명이랑 일치하는지 확인