diff --git a/ruoyi-system/src/main/java/bounty/mapper/BountyMapper.java b/ruoyi-system/src/main/java/bounty/mapper/BountyMapper.java
new file mode 100644
index 0000000..aadf152
--- /dev/null
+++ b/ruoyi-system/src/main/java/bounty/mapper/BountyMapper.java
@@ -0,0 +1,25 @@
+package bounty.mapper;
+
+import bounty.domain.Bounty;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import org.apache.ibatis.annotations.Mapper;
+import org.apache.ibatis.annotations.Param;
+import java.util.List;
+
+// 悬赏 Mapper 接口
+@Mapper
+public interface BountyMapper extends BaseMapper<Bounty> {
+// 导入 List 类
+    //IPage<Bounty> selectPage(Page<Bounty> page);
+    // 新增与 XML 中 insert 方法匹配的接口声明
+    int insert(Bounty bounty);
+
+    Bounty selectById(Long id);
+
+    // 新增：定义 selectList 方法
+    List<Bounty> selectList();  //
+
+}
+
diff --git a/ruoyi-system/src/main/java/bounty/mapper/BountySubmissionMapper.java b/ruoyi-system/src/main/java/bounty/mapper/BountySubmissionMapper.java
new file mode 100644
index 0000000..c3eca40
--- /dev/null
+++ b/ruoyi-system/src/main/java/bounty/mapper/BountySubmissionMapper.java
@@ -0,0 +1,25 @@
+package bounty.mapper;
+
+import bounty.domain.BountySubmission;
+import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import com.baomidou.mybatisplus.core.metadata.IPage;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Mapper;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PutMapping;
+
+import java.util.List;
+import java.util.Map;
+
+// 悬赏提交 Mapper 接口
+@Mapper
+public interface BountySubmissionMapper extends BaseMapper<BountySubmission> {
+    // 与 XML 中 id="getBountySubmissionsByPage" 的 SQL 匹配
+    IPage<BountySubmission> getBountySubmissionsByPage(Page<BountySubmission> page, @Param("bountyId") Long bountyId);
+    // 导入 List 类
+    List<BountySubmission> getSubmissionsByBountyId(@Param("bountyId") Long bountyId);
+}
+
+