diff --git a/src/main/java/com/study/design/service/OrderService.java b/src/main/java/com/study/design/service/OrderService.java
index 1aacbb5f23d6d1753a4adf85e73f2de91b156f8b..014219f8168ed266f29348bb4cac7770d3018dcb 100644
--- a/src/main/java/com/study/design/service/OrderService.java
+++ b/src/main/java/com/study/design/service/OrderService.java
@@ -30,7 +30,7 @@ public class OrderService {
     private StateMachinePersister<OrderState, OrderStateChangeAction, Order> stateMachinePersister;
 
     /**
-     * 模拟一个存储
+     * 模拟一个存储DB
      */
     private final List<Object> orders = new ArrayList<>();
 
@@ -119,7 +119,7 @@ public class OrderService {
 
 
     /**
-     * 状态变更
+     * 状态变更,消息通知
      *
      * @param message
      * @param order