训练营导入创客判断是否有重复创客

kxs-system/kxs-system-biz/src/main/java/com/kxs/system/biz/service/impl/KxsCampServiceImpl.java

@@ -49,6 +49,8 @@ import org.springframework.validation.BindingResult;
 import java.math.BigDecimal;
 import java.time.LocalDateTime;
 import java.util.*;
+import java.util.function.Function;
+import java.util.stream.Collectors;
 
 /**
  * 训练营(KxsCamp)表服务实现类
@@ -110,6 +112,16 @@ public class KxsCampServiceImpl extends ServiceImpl<KxsCampMapper, KxsCamp> impl
         if (campUserExcelVOList.isEmpty()) {
             return R.failed(SysErrorTypeEnum.IMPORT_EMPTY.getDescription());
         }
+        //判断是否有重复创客
+        boolean hasDuplicates = campUserExcelVOList.stream()
+                .map(CampUserExcelVO::getUserCode)
+                .collect(Collectors.groupingBy(Function.identity(), Collectors.counting()))
+                .entrySet()
+                .stream()
+                .anyMatch(e -> e.getValue() > 1);
+        if(hasDuplicates){
+            return R.failed("导入数据中存在重复的创客编码，请检查后重新导入");
+        }
 
         // 通用校验获取失败的数据
         List<ErrorMessage> errorMessageList = (List<ErrorMessage>) bindingResult.getTarget();