add log

@@ -62,10 +62,13 @@ public class ProductLimitCollector {
         for (LimitValueHandler limitValueHandler : LIMIT_VALUES_LIST){
 
             if (!limitValueHandler.isMatch(shoppingProductInfo, productLimitInfo)){
+                logger.info("{} product limit not match, goods info {}, coupon info {}", limitValueHandler.getLimitValue(), shoppingProductInfo, productLimitInfo);
                 return false;
             }
         }
 
+        logger.info("product limit matched, goods info {}, coupon info {}", shoppingProductInfo, productLimitInfo);
+
         return true;
     }