[Java] Map을 VO로, VO를 Map으로 변환하기

ObjectMapper를 사용한다.

	    public static Map<String, Object> changeVotoMap (Object vo) {
	    	ObjectMapper objectMapper = new ObjectMapper();
	    	Map<String, Object> map = objectMapper.convertValue(vo, Map.class);
	    	return map;	    	
	    }
	    public static Object changeMaptoVO (Map<String, Object> map) {
	    	ObjectMapper objectMapper = new ObjectMapper();
	    	Object vo = objectMapper.convertValue(map, Object.class);
	    	return vo;	    	
	    }