fix:添加注释

src/main/java/com/study/design/controller/OrderController.java

@@ -10,8 +10,17 @@ import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
+
+/**
+ * 订单入口
+ *
+ * @author : qinyingjie
+ * @version : 2.2.0
+ * @date : 2023/7/29 19:53
+ */
 @RestController
 public class OrderController {
+
     @Autowired
     private OrderService orderService;
 
@@ -21,7 +30,7 @@ public class OrderController {
     }
 
     @PostMapping("/pay")
-    public Order payOrder(@RequestBody PayBody payBody){
+    public Order payOrder(@RequestBody PayBody payBody) {
         return orderService.pay(payBody);
     }
 

src/main/java/com/study/design/order/config/OrderStateMachineConfig.java

@@ -16,7 +16,6 @@ import org.springframework.statemachine.support.DefaultStateMachineContext;
 
 import java.util.EnumSet;
 
-
 /**
  * 订单状态配置类
  *
@@ -27,12 +26,25 @@ import java.util.EnumSet;
 @Configuration
 @EnableStateMachine(name = "orderStateMachine")
 public class OrderStateMachineConfig extends StateMachineConfigurerAdapter<OrderState, OrderStateChangeAction> {
+
+    /**
+     * 配置状态的初始值
+     *
+     * @param states
+     * @throws Exception
+     */
     @Override
     public void configure(StateMachineStateConfigurer<OrderState, OrderStateChangeAction> states) throws Exception {
         states.withStates().initial(OrderState.ORDER_WAIT_PAY)
                 .states(EnumSet.allOf(OrderState.class));
     }
 
+    /**
+     * 配置状态转化
+     *
+     * @param transitions
+     * @throws Exception
+     */
     @Override
     public void configure(StateMachineTransitionConfigurer<OrderState, OrderStateChangeAction> transitions) throws Exception {
         transitions.withExternal().source(OrderState.ORDER_WAIT_PAY)
@@ -56,7 +68,6 @@ public class OrderStateMachineConfig extends StateMachineConfigurerAdapter<Order
     @Bean
     public DefaultStateMachinePersister machinePersister() {
         return new DefaultStateMachinePersister<>(new StateMachinePersist<Object, Object, Order>() {
-
             @Override
             public void write(StateMachineContext<Object, Object> stateMachineContext, Order order) throws Exception {
                 //持久化操作。可以通过任何形式进行持久化。redis 、 mongodb、mysql，ecache

src/main/java/com/study/design/service/OrderService.java

@@ -20,23 +20,27 @@ import java.util.List;
 @Service
 public class OrderService {
 
-    @Autowired
-    private StateMachine<OrderState, OrderStateChangeAction> orderStateMachine;
-
-    @Autowired
-    private StateMachinePersister<OrderState, OrderStateChangeAction, Order> stateMachinePersister;
-
     @Autowired
     private PayLogProcessor payLogProcessor;
-
     @Autowired
     private OrderLogProcessor orderLogProcessor;
+    @Autowired
+    private StateMachine<OrderState, OrderStateChangeAction> orderStateMachine;
+    @Autowired
+    private StateMachinePersister<OrderState, OrderStateChangeAction, Order> stateMachinePersister;
 
     /**
      * 模拟一个存储
      */
     private final List<Object> orders = new ArrayList<>();
 
+
+    /**
+     * 创建订单
+     *
+     * @param oid
+     * @return
+     */
     public Order createOrder(Integer oid) {
         Order order = new Order();
         order.setOrderState(OrderState.ORDER_WAIT_PAY);
@@ -47,20 +51,27 @@ public class OrderService {
         return order;
     }
 
-    // 将来我们删除或者增加或者修改任何关于付款的模块，无需改动service。
-    //不会对调用层产生任何代码的改动。
-    // 调用层使用我们的pay 模块，无需关系实现的逻辑，只需要将入参传给我们的pay模块即可。
+
+    /**
+     * 支付订单
+     * 将来我们删除或者增加或者修改任何关于付款的模块，无需改动service。
+     * 不会对调用层产生任何代码的改动。
+     * 调用层使用我们的pay 模块，无需关系实现的逻辑，只需要将入参传给我们的pay模块即可。
+     *
+     * @param payBody
+     * @return
+     */
     public Order pay(PayBody payBody) {
         // 书写我们的付款逻辑
         boolean flag = false;
         flag = StrategyFacade.pay(payBody);
-        if(flag) {
+        if (flag) {
             Order order = (Order) orders.get(0); // 模拟查询db代码
             payLogProcessor.processAuditLog(payBody.getAccount(), "pay", order.getOrderId().toString());
             Message message = MessageBuilder
                     .withPayload(OrderStateChangeAction.PAY_ORDER).setHeader("order", order).build();
             //发送消息，发送给谁？和状态机有没有关系啊？ 有
-            if(changeStateAction(message,order)) {
+            if (changeStateAction(message, order)) {
                 return order;
             }
             //如果是 true，我们要保存到db
@@ -68,29 +79,52 @@ public class OrderService {
         }
         return null;
     }
+
     private void saveToDb(PayBody payBody) {
     }
 
+
+    /**
+     * 订单发货
+     *
+     * @param oid
+     * @return
+     */
     public Order send(Integer oid) {
         Order order = (Order) orders.get(0); // 模拟查询db代码
         Message message = MessageBuilder
                 .withPayload(OrderStateChangeAction.SEND_ORDER).setHeader("order", order).build();
-        if(changeStateAction(message,order)) {
+        if (changeStateAction(message, order)) {
             return order;
         }
         return null;
     }
 
+
+    /**
+     * 订单收货
+     *
+     * @param oid
+     * @return
+     */
     public Order receive(Integer oid) {
         Order order = (Order) orders.get(0); // 模拟查询db代码
         Message message = MessageBuilder
                 .withPayload(OrderStateChangeAction.RECEIVE_ORDER).setHeader("order", order).build();
-        if(changeStateAction(message,order)) {
+        if (changeStateAction(message, order)) {
             return order;
         }
         return null;
     }
 
+
+    /**
+     * 状态变更
+     *
+     * @param message
+     * @param order
+     * @return
+     */
     private boolean changeStateAction(Message<OrderStateChangeAction> message, Order order) {
         try {
             orderStateMachine.start();