diff --git a/src/main/java/cn/lihongjie/coal/base/mapper/CommonMapper.java b/src/main/java/cn/lihongjie/coal/base/mapper/CommonMapper.java
index c40c04dd..c00fdf8e 100644
--- a/src/main/java/cn/lihongjie/coal/base/mapper/CommonMapper.java
+++ b/src/main/java/cn/lihongjie/coal/base/mapper/CommonMapper.java
@@ -1,9 +1,10 @@
 package cn.lihongjie.coal.base.mapper;
 
-import cn.lihongjie.coal.dictionary.entity.DictionaryEntity;
-import cn.lihongjie.coal.dictionary.entity.DictionaryItemEntity;
 import cn.lihongjie.coal.base.dto.BaseDto;
 import cn.lihongjie.coal.base.entity.BaseEntity;
+import cn.lihongjie.coal.coalInfo.entity.CoalInfoEntity;
+import cn.lihongjie.coal.dictionary.entity.DictionaryEntity;
+import cn.lihongjie.coal.dictionary.entity.DictionaryItemEntity;
 import cn.lihongjie.coal.organization.entity.OrganizationEntity;
 import cn.lihongjie.coal.permission.entity.PermissionEntity;
 import cn.lihongjie.coal.resource.entity.ResourceEntity;
@@ -141,7 +142,17 @@ public interface CommonMapper {
         return e;
 
     }
+    public default CoalInfoEntity createCoalInfo(String id) {
 
+        if (StringUtils.isEmpty(id)) {
+
+            return null;
+        }
+        CoalInfoEntity e = new CoalInfoEntity();
+        e.setId(id);
+        return e;
+
+    }
     public default String toString(Object o) {
 
 
diff --git a/src/main/java/cn/lihongjie/coal/coalInfo/service/CoalInfoService.java b/src/main/java/cn/lihongjie/coal/coalInfo/service/CoalInfoService.java
index 09a0ea80..ea639430 100644
--- a/src/main/java/cn/lihongjie/coal/coalInfo/service/CoalInfoService.java
+++ b/src/main/java/cn/lihongjie/coal/coalInfo/service/CoalInfoService.java
@@ -57,7 +57,7 @@ public class CoalInfoService extends BaseService<CoalInfoEntity, CoalInfoReposit
 
     public CoalInfoDto update(UpdateCoalInfoDto request) {
         CoalInfoEntity entity = this.repository.get(request.getId());
-        Double old = request.getInitPrice();
+        Double old = entity.getInitPrice();
         this.mapper.updateEntity(entity, request);
 
         this.repository.save(entity);