diff --git a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/mapper/EdFileInfoMapper.java b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/mapper/EdFileInfoMapper.java
index d0efa7d..bd4a2a7 100644
--- a/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/mapper/EdFileInfoMapper.java
+++ b/electrmangnetic/src/main/java/com/electromagnetic/industry/software/manage/mapper/EdFileInfoMapper.java
@@ -1,7 +1,9 @@
 package com.electromagnetic.industry.software.manage.mapper;
 
+import cn.hutool.core.util.StrUtil;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.electromagnetic.industry.software.manage.pojo.models.EdFileInfo;
 import com.electromagnetic.industry.software.manage.pojo.other.FileInfoVO;
@@ -14,6 +16,13 @@ import java.util.List;
 @Mapper
 public interface EdFileInfoMapper extends BaseMapper<EdFileInfo> {
 
+
+    default EdFileInfo selectById(String id) {
+        return this.selectOne(Wrappers.lambdaQuery(EdFileInfo.class)
+                .select(EdFileInfo.class, file -> !StrUtil.equals(file.getColumn(), "file_content"))
+                .eq(EdFileInfo::getId, id));
+    }
+
     String maxPrjId();
 
     /**