1. 基于 db 实现文件的存储

src/main/java/cn/iocoder/dashboard/modules/system/dal/mysql/dao/common/SysFileMapper.java

@@ -0,0 +1,15 @@
+package cn.iocoder.dashboard.modules.system.dal.mysql.dao.common;
+
+import cn.iocoder.dashboard.modules.system.dal.mysql.dataobject.common.SysFileDO;
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Mapper;
+
+@Mapper
+public interface SysFileMapper extends BaseMapper<SysFileDO> {
+
+    default Integer selectCountById(String id) {
+        return selectCount(new QueryWrapper<SysFileDO>().eq("id", id));
+    }
+
+}

src/main/java/cn/iocoder/dashboard/modules/system/dal/mysql/dao/dept/SysPostMapper.java

@@ -2,6 +2,7 @@ package cn.iocoder.dashboard.modules.system.dal.mysql.dao.dept;
 
 import cn.iocoder.dashboard.framework.mybatis.core.query.QueryWrapperX;
 import cn.iocoder.dashboard.framework.mybatis.core.util.MyBatisUtils;
+import cn.iocoder.dashboard.modules.system.controller.dept.vo.post.SysPostExportReqVO;
 import cn.iocoder.dashboard.modules.system.controller.dept.vo.post.SysPostPageReqVO;
 import cn.iocoder.dashboard.modules.system.dal.mysql.dataobject.dept.SysPostDO;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
@@ -26,6 +27,11 @@ public interface SysPostMapper extends BaseMapper<SysPostDO> {
                         .eqIfPresent("status", reqVO.getStatus()));
     }
 
+    default List<SysPostDO> selectList(SysPostExportReqVO reqVO) {
+        return selectList(new QueryWrapperX<SysPostDO>().likeIfPresent("name", reqVO.getName())
+                .eqIfPresent("status", reqVO.getStatus()));
+    }
+
     default SysPostDO selectByName(String name) {
         return selectOne(new QueryWrapper<SysPostDO>().eq("name", name));
     }

src/main/java/cn/iocoder/dashboard/modules/system/dal/mysql/dataobject/common/SysFileDO.java

@@ -0,0 +1,30 @@
+package cn.iocoder.dashboard.modules.system.dal.mysql.dataobject.common;
+
+import cn.iocoder.dashboard.framework.mybatis.core.dataobject.BaseDO;
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+/**
+ * 文件表
+ *
+ * @author 芋道源码
+ */
+@Data
+@TableName("sys_file")
+@EqualsAndHashCode(callSuper = true)
+public class SysFileDO extends BaseDO {
+
+    /**
+     * 文件路径
+     */
+    @TableId(type = IdType.INPUT)
+    private String id;
+    /**
+     * 文件内容
+     */
+    private byte[] content;
+
+}

src/main/java/cn/iocoder/dashboard/modules/system/dal/mysql/dataobject/dept/SysDeptDO.java

@@ -8,7 +8,7 @@ import lombok.Data;
 import lombok.EqualsAndHashCode;
 
 /**
- * 部门表 sys_dept
+ * 部门表
  *
  * @author ruoyi
  */