diff --git a/ruoyi-oa/src/main/java/com/ruoyi/oa/mapper/OaReportDetailMapper.java b/ruoyi-oa/src/main/java/com/ruoyi/oa/mapper/OaReportDetailMapper.java
new file mode 100644
index 0000000..d64d492
--- /dev/null
+++ b/ruoyi-oa/src/main/java/com/ruoyi/oa/mapper/OaReportDetailMapper.java
@@ -0,0 +1,17 @@
+package com.ruoyi.oa.mapper;
+
+import com.ruoyi.oa.domain.OaReportDetail;
+import com.ruoyi.oa.domain.vo.OaReportDetailVo;
+import com.ruoyi.common.core.mapper.BaseMapperPlus;
+import org.apache.ibatis.annotations.Select;
+
+/**
+ * 设计项目汇报详情Mapper接口
+ *
+ * @author ruoyi
+ * @date 2025-05-13
+ */
+public interface OaReportDetailMapper extends BaseMapperPlus<OaReportDetailMapper, OaReportDetail, OaReportDetailVo> {
+    @Select("SELECT url FROM sys_oss WHERE oss_id = #{ossId}")
+    String selectImageUrlByOssId(String ossId);
+}