fix(wxpay): 修复 Kafka 生产者空指针异常

- 添加对 profitShareKafkaProducer 的空值检查
- 在发送消息前确保 Kafka 生产者已注入
- 使用 CompletableFuture 处理异步退款消息发送
- 设置 Kafka 生产者的注入模式为 required=false
- 避免因 Kafka 生产者缺失导致的服务启动失败

src/main/java/com/ycwl/basic/service/mobile/impl/WxPayServiceImpl.java

@@ -31,10 +31,12 @@ import com.ycwl.basic.repository.OrderRepository;
 import com.ycwl.basic.service.mobile.WxPayService;
 import com.ycwl.basic.service.pc.ScenicService;
 import com.ycwl.basic.utils.SnowFlakeUtil;
+import io.netty.util.concurrent.CompleteFuture;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.Lazy;
 import org.springframework.data.redis.core.RedisTemplate;
+import org.springframework.kafka.support.SendResult;
 import org.springframework.stereotype.Service;
 
 import jakarta.servlet.http.HttpServletRequest;
@@ -42,6 +44,7 @@ import java.io.IOException;
 import java.math.BigDecimal;
 import java.math.BigInteger;
 import java.util.*;
+import java.util.concurrent.CompletableFuture;
 
 /**
  * @Author: songmingsong
@@ -74,7 +77,7 @@ public class WxPayServiceImpl implements WxPayService {
     @Autowired
     @Lazy
     private RedisTemplate<String, String> redisTemplate;
-    @Autowired
+    @Autowired(required = false)
     private ProfitShareKafkaProducer profitShareKafkaProducer;
 
     @Override
@@ -126,6 +129,7 @@ public class WxPayServiceImpl implements WxPayService {
                     invalidateStatisticsCache(scenicId);
                 }
             });
+            if (profitShareKafkaProducer != null) {
                 profitShareKafkaProducer.sendProfitShareMessage(OrderMessage.builder()
                         .orderId(callbackResponse.getOrderNo())
                         .scenicId(scenicId)
@@ -135,6 +139,7 @@ public class WxPayServiceImpl implements WxPayService {
                         .timestamp(System.currentTimeMillis() / 1000)
                         .build()
                 );
+            }
         } catch (Exception e) {
             throw new AppException(BizCodeEnum.ADVANCE_PAYMENT_CALLBACK_FAILED, e.toString());
         }
@@ -157,7 +162,9 @@ public class WxPayServiceImpl implements WxPayService {
         IPayAdapter scenicPayAdapter = scenicService.getScenicPayAdapter(order.getScenicId());
         BigDecimal payPrice = order.getPayPrice();
         int priceInCents = payPrice.multiply(new BigDecimal(NumberConstant.HUNDRED)).intValue(); // 转换为分（int）
-        profitShareKafkaProducer.sendRefundMessage(RefundMessage.builder()
+        CompletableFuture<SendResult<String, String>> future;
+        if (profitShareKafkaProducer != null) {
+            future = profitShareKafkaProducer.sendRefundMessage(RefundMessage.builder()
                     .refundOrderId(String.valueOf(order.getId()))
                     .originalOrderId(String.valueOf(order.getId()))
                     .refundAmount(payPrice.doubleValue())
@@ -165,7 +172,11 @@ public class WxPayServiceImpl implements WxPayService {
                     .paymentSystem("wechat")
                     .timestamp(System.currentTimeMillis() / 1000)
                     .build()
-        ).whenComplete((result, throwable) -> {
+            );
+        } else {
+            future = CompletableFuture.completedFuture(null);
+        }
+        future.whenComplete((result, throwable) -> {
             RefundOrderRequest request = new RefundOrderRequest()
                     .setOrderNo(orderId)
                     .setPrice(priceInCents)