修改

src/main/java/com/chaozhanggui/system/cashierservice/controller/MemberController.java

@@ -26,7 +26,7 @@ public class MemberController {
                               @RequestHeader("clientType") String clientType,
                               @RequestParam("shopId") String shopId,
                               @RequestParam("phone") String phone,
-                              @RequestParam("isFlag") String isFlag,
+                              @RequestParam(value = "isFlag",required = false,defaultValue ="0" ) String isFlag,
                               @RequestParam("page") int page,
                               @RequestParam("pageSize") int pageSize
     ) {

src/main/java/com/chaozhanggui/system/cashierservice/service/MemberService.java

@@ -92,6 +92,8 @@ public class MemberService {
         if(!"1".equals(isFlag)){
             isFlag=null;
         }
+
+        
         List<TbShopUser> tbShopUsers = tbShopUserMapper.selectByShopId(shopId, phone,isFlag);
         PageInfo pageInfo = new PageInfo(tbShopUsers);
         return Result.success(CodeEnum.SUCCESS, pageInfo);