From a30083741460048608cc5a74fe0fcb0d7d84169b Mon Sep 17 00:00:00 2001
From: Your Name <your.email@example.com>
Date: Thu, 22 Jan 2026 09:22:30 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20TeamScorePoolService=20=E4=BD=BF?=
 =?UTF-8?q?=E7=94=A8=20selectList+findFirst=20=E9=81=BF=E5=85=8D=E9=87=8D?=
 =?UTF-8?q?=E5=A4=8D=E6=95=B0=E6=8D=AE=E5=AF=BC=E8=87=B4=20TooManyResultsE?=
 =?UTF-8?q?xception?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/com/designhub/service/TeamScorePoolService.java   | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/backend/src/main/java/com/designhub/service/TeamScorePoolService.java b/backend/src/main/java/com/designhub/service/TeamScorePoolService.java
index 8f55256..5e571fd 100644
--- a/backend/src/main/java/com/designhub/service/TeamScorePoolService.java
+++ b/backend/src/main/java/com/designhub/service/TeamScorePoolService.java
@@ -29,10 +29,13 @@ public class TeamScorePoolService {
      * 使用 dept_id 关联部门（team_id 为遗留字段）。若当前部门无积分池且存在父部门，则向上查找父部门积分池（三级部门共享二级）。
      */
     public TeamScorePool getByDeptId(Long deptId) {
-        TeamScorePool pool = teamScorePoolMapper.selectOne(
+        // 使用 selectList + findFirst 避免重复数据导致的 TooManyResultsException
+        TeamScorePool pool = teamScorePoolMapper.selectList(
             new LambdaQueryWrapper<TeamScorePool>()
                 .eq(TeamScorePool::getDeptId, deptId)
-        );
+                .orderByAsc(TeamScorePool::getId)
+                .last("LIMIT 1")
+        ).stream().findFirst().orElse(null);
 
         if (pool == null) {
             Department department = departmentMapper.selectById(deptId);