diff --git a/group-buying-sys-trigger/src/main/java/edu/whut/trigger/rpc/MarketTradeDubboService.java b/group-buying-sys-trigger/src/main/java/edu/whut/trigger/rpc/MarketTradeDubboService.java
index 892cea1..47bc50d 100644
--- a/group-buying-sys-trigger/src/main/java/edu/whut/trigger/rpc/MarketTradeDubboService.java
+++ b/group-buying-sys-trigger/src/main/java/edu/whut/trigger/rpc/MarketTradeDubboService.java
@@ -1,29 +1,30 @@
 package edu.whut.trigger.rpc;
-
 import edu.whut.api.IMarketTradeService;
 import edu.whut.api.dto.*;
 import edu.whut.api.response.Response;
 import edu.whut.trigger.basic.MarketTradeService;
 import org.apache.dubbo.config.annotation.DubboService;
 import lombok.RequiredArgsConstructor;
-import org.springframework.beans.factory.annotation.Qualifier;
 
 @DubboService(version = "1.0.0")     // 关键注解
 @RequiredArgsConstructor
-public class MarketTradeDubboService {
+public class MarketTradeDubboService implements IMarketTradeService {
 
     private final MarketTradeService marketTradeService;   // 复用现有业务
 
+    @Override
     public Response<LockMarketPayOrderResponseDTO> lockMarketPayOrder(
             LockMarketPayOrderRequestDTO dto) {
         return marketTradeService.lockMarketPayOrder(dto);     // 直接委托原 Controller 逻辑
     }
 
+    @Override
     public Response<SettlementMarketPayOrderResponseDTO> settlementMarketPayOrder(
             SettlementMarketPayOrderRequestDTO dto) {
         return marketTradeService.settlementMarketPayOrder(dto);
     }
 
+    @Override
     public Response<RefundMarketPayOrderResponseDTO> refundMarketPayOrder(
             RefundMarketPayOrderRequestDTO dto) {
         return marketTradeService.refundMarketPayOrder(dto);