diff --git a/web-app/src/main/java/com/zcloud/basic/info/command/convertor/DepartmentCoConvertor.java b/web-app/src/main/java/com/zcloud/basic/info/command/convertor/DepartmentCoConvertor.java
index 87a9c74..282b07b 100644
--- a/web-app/src/main/java/com/zcloud/basic/info/command/convertor/DepartmentCoConvertor.java
+++ b/web-app/src/main/java/com/zcloud/basic/info/command/convertor/DepartmentCoConvertor.java
@@ -5,6 +5,7 @@ import com.zcloud.basic.info.dto.clientobject.DepartmentTreeInfoCO;
 import com.zcloud.basic.info.persistence.dataobject.DepartmentDO;
 import com.zcloud.gbscommon.zclouddepartment.response.ZcloudDepartmentInfoCo;
 import org.mapstruct.Mapper;
+import org.mapstruct.Mapping;
 
 import java.util.List;
 
diff --git a/web-app/src/main/java/com/zcloud/basic/info/command/query/DepartmentQueryExe.java b/web-app/src/main/java/com/zcloud/basic/info/command/query/DepartmentQueryExe.java
index 6cbdc7b..1683d8c 100644
--- a/web-app/src/main/java/com/zcloud/basic/info/command/query/DepartmentQueryExe.java
+++ b/web-app/src/main/java/com/zcloud/basic/info/command/query/DepartmentQueryExe.java
@@ -15,6 +15,7 @@ import com.zcloud.basic.info.dto.clientobject.DepartmentTreeInfoCO;
 import com.zcloud.basic.info.persistence.dataobject.DepartmentDO;
 import com.zcloud.basic.info.persistence.repository.DepartmentRepository;
 import com.zcloud.gbscommon.utils.PageQueryHelper;
+import com.zcloud.gbscommon.utils.Tools;
 import lombok.AllArgsConstructor;
 import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.BeanUtils;
@@ -50,37 +51,18 @@ public class DepartmentQueryExe {
     }
 
     public List<DepartmentTreeInfoCO> listTree(DepartmentTreeQry departmentQry) {
-        if(Objects.isNull(departmentQry.getEqCorpinfoId())){
+        if (Objects.isNull(departmentQry.getEqCorpinfoId())) {
             departmentQry.setEqCorpinfoId(AuthContext.getTenantId());
-
         }
         Map<String, Object> parmas = PageQueryHelper.toHashMap(departmentQry);
         List<DepartmentDO> pageResponse = departmentRepository.listTree(parmas);
-        if(CollUtil.isEmpty(pageResponse)) {
+        if (CollUtil.isEmpty(pageResponse)) {
             return Collections.emptyList();
         }
         List<DepartmentTreeInfoCO> examCenterCOS = departmentCoConvertor.converDOsToInfoCOs(pageResponse);
-        Map<Long, List<DepartmentTreeInfoCO>> childrenMap = new HashMap<>();
-        for (DepartmentTreeInfoCO dept : examCenterCOS) {
-            childrenMap
-                    .computeIfAbsent(dept.getParentId(), k -> new ArrayList<>())
-                    .add(dept);
-        }
-        return buildTree(childrenMap, 0L);
+        return Tools.buildEntityTree(examCenterCOS, "id", "parentId", "childrenList");
     }
-    private List<DepartmentTreeInfoCO> buildTree(Map<Long, List<DepartmentTreeInfoCO>> childrenMap, Long parentId) {
-        List<DepartmentTreeInfoCO> nodes = childrenMap.get(parentId);
-        if (nodes == null) {
-            return Collections.emptyList();
-        }
-        for (DepartmentTreeInfoCO node : nodes) {
-            // 递归构建子节点
-            List<DepartmentTreeInfoCO> children = buildTree(childrenMap, node.getId());
-            node.setChildrenList(children);
-        }
 
-        return nodes;
-    }
 
     public DepartmentCO info(Long id) {
         DepartmentDO info = departmentRepository.getById(id);