学习到支付服务

pay-service/src/main/java/cn/mayiming/Consumer/payConsumer.java

@@ -1,18 +1,35 @@
 package cn.mayiming.Consumer;
 
+import cn.mayiming.Entity.PayTriggerMsgDTO;
 import org.apache.rocketmq.spring.annotation.RocketMQMessageListener;
 import org.apache.rocketmq.spring.core.RocketMQListener;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 @Component
 @RocketMQMessageListener(
         topic = "pay_topic",
         consumerGroup = "pay-service-consumer",
-        selectorExpression = "pay_success"
+        selectorExpression = "*"
 )
-public class payConsumer implements RocketMQListener<String> {
+public class payConsumer implements RocketMQListener<PayTriggerMsgDTO> {
+
     @Override
-    public void onMessage(String s) {
-        System.out.println("接收到消息"+s);
+    public void onMessage(PayTriggerMsgDTO msg) {
+        // 消费者接收到消息，模拟支付流程（本地仅生成支付链接，记录到日志/订单）
+        try {
+            System.out.println("========== 接收到支付触发消息 ==========");
+            System.out.println("订单号：" + msg.getOrderNo());
+            System.out.println("用户ID：" + msg.getUserId());
+            System.out.println("支付金额：" + msg.getPayAmount());
+            System.out.println("模拟支付链接：http://localhost:8080/order/mock/pay?orderNo=" + msg.getOrderNo());
+            System.out.println("=======================================");
+
+
+        } catch (Exception e) {
+            e.printStackTrace();
+            // 本地模拟：消息消费失败可记录日志，生产环境需配置重试
+            System.err.println("消费支付触发消息失败，订单号：" + msg.getOrderNo() + "，原因：" + e.getMessage());
+        }
     }
-}
+}

pay-service/src/main/java/cn/mayiming/Entity/PayTriggerMsgDTO.java

@@ -0,0 +1,14 @@
+package cn.mayiming.Entity;
+
+import lombok.Data;
+
+import java.math.BigDecimal;
+
+@Data
+public class PayTriggerMsgDTO {
+    private String orderNo;       // 订单号（核心关联）
+    private Long userId;          // 用户ID
+    private BigDecimal payAmount; // 支付金额
+    private String businessId;    // 幂等ID（透传）
+    private Long goodsId;         // 商品ID（用于关单恢复库存）
+}

pay-service/src/main/java/cn/mayiming/Mapper/payMapper.java

@@ -0,0 +1,5 @@
+package cn.mayiming.Mapper;
+
+public interface payMapper {
+
+}