feat: 添加服务号菜单导出接口 GET /wx/exportMenu

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

car-wash-miniapp/src/main/java/com/kym/miniapp/controller/WeixinMPController.java

@@ -9,6 +9,7 @@ import com.kym.common.R;
 import com.kym.service.MpRelationService;
 import com.kym.service.wechat.WeixinMPService;
 import jakarta.servlet.http.HttpServletRequest;
+import me.chanjar.weixin.mp.api.WxMpService;
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.extern.slf4j.Slf4j;
 import me.chanjar.weixin.common.error.WxErrorException;
@@ -29,10 +30,13 @@ public class WeixinMPController {
 
     private final WeixinMPService weixinMPService;
     private final MpRelationService mpRelationService;
+    private final WxMpService wxMpService;
 
-    public WeixinMPController(WeixinMPService weixinMPService, MpRelationService mpRelationService) {
+    public WeixinMPController(WeixinMPService weixinMPService, MpRelationService mpRelationService,
+                               WxMpService wxMpService) {
         this.weixinMPService = weixinMPService;
         this.mpRelationService = mpRelationService;
+        this.wxMpService = wxMpService;
     }
 
     /**
@@ -73,6 +77,22 @@ public class WeixinMPController {
         }
     }
 
+    /**
+     * 导出当前公众号自定义菜单结构（调试用）
+     */
+    @GetMapping(value = "/exportMenu")
+    @SaIgnore
+    @ResponseBody
+    public R<?> exportMenu() {
+        try {
+            String menuJson = wxMpService.getMenuService().menuGet();
+            return R.success(menuJson);
+        } catch (WxErrorException e) {
+            log.error("导出菜单失败", e);
+            return R.failed(-1, "导出失败: " + e.getMessage());
+        }
+    }
+
     /**
      * 手动同步公众号关注用户（一次性触发）
      */