diff --git a/zhyc-module/src/main/java/com/zhyc/module/fileManagement/controller/BasSheepGroupController.java b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/controller/BasSheepGroupController.java
index 7326485..0413aad 100644
--- a/zhyc-module/src/main/java/com/zhyc/module/fileManagement/controller/BasSheepGroupController.java
+++ b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/controller/BasSheepGroupController.java
@@ -94,4 +94,11 @@ public class BasSheepGroupController extends BaseController
         return toAjax(basSheepGroupService.deleteBasSheepGroupByGroupIds(groupIds));
     }
 
+    @PreAuthorize("@ss.hasPermi('group_management:group_management:list')")
+    @GetMapping("/leaf")
+    public AjaxResult selectLeafNodes() {
+        List<BasSheepGroup> leafNodes = basSheepGroupService.selectLeafNodes();
+        return success(leafNodes);
+    }
+
 }
diff --git a/zhyc-module/src/main/java/com/zhyc/module/fileManagement/controller/BasSheepGroupMappingController.java b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/controller/BasSheepGroupMappingController.java
new file mode 100644
index 0000000..b1d3417
--- /dev/null
+++ b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/controller/BasSheepGroupMappingController.java
@@ -0,0 +1,104 @@
+package com.zhyc.module.fileManagement.controller;
+
+import java.util.List;
+import javax.servlet.http.HttpServletResponse;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import com.zhyc.common.annotation.Log;
+import com.zhyc.common.core.controller.BaseController;
+import com.zhyc.common.core.domain.AjaxResult;
+import com.zhyc.common.enums.BusinessType;
+import com.zhyc.module.fileManagement.domain.BasSheepGroupMapping;
+import com.zhyc.module.fileManagement.service.IBasSheepGroupMappingService;
+import com.zhyc.common.utils.poi.ExcelUtil;
+import com.zhyc.common.core.page.TableDataInfo;
+
+/**
+ * 羊只分组关联Controller
+ * 
+ * @author wyt
+ * @date 2025-07-16
+ */
+@RestController
+@RequestMapping("/sheep_grouping/sheep_grouping")
+public class BasSheepGroupMappingController extends BaseController
+{
+    @Autowired
+    private IBasSheepGroupMappingService basSheepGroupMappingService;
+
+    /**
+     * 查询羊只分组关联列表
+     */
+    @PreAuthorize("@ss.hasPermi('sheep_grouping:sheep_grouping:list')")
+    @GetMapping("/list")
+    public TableDataInfo list(BasSheepGroupMapping basSheepGroupMapping)
+    {
+        startPage();
+        List<BasSheepGroupMapping> list = basSheepGroupMappingService.selectBasSheepGroupMappingList(basSheepGroupMapping);
+        return getDataTable(list);
+    }
+
+    /**
+     * 导出羊只分组关联列表
+     */
+    @PreAuthorize("@ss.hasPermi('sheep_grouping:sheep_grouping:export')")
+    @Log(title = "羊只分组关联", businessType = BusinessType.EXPORT)
+    @PostMapping("/export")
+    public void export(HttpServletResponse response, BasSheepGroupMapping basSheepGroupMapping)
+    {
+        List<BasSheepGroupMapping> list = basSheepGroupMappingService.selectBasSheepGroupMappingList(basSheepGroupMapping);
+        ExcelUtil<BasSheepGroupMapping> util = new ExcelUtil<BasSheepGroupMapping>(BasSheepGroupMapping.class);
+        util.exportExcel(response, list, "羊只分组关联数据");
+    }
+
+    /**
+     * 获取羊只分组关联详细信息
+     */
+    @PreAuthorize("@ss.hasPermi('sheep_grouping:sheep_grouping:query')")
+    @GetMapping(value = "/{id}")
+    public AjaxResult getInfo(@PathVariable("id") Long id)
+    {
+        return success(basSheepGroupMappingService.selectBasSheepGroupMappingById(id));
+    }
+
+    /**
+     * 新增羊只分组关联
+     */
+    @PreAuthorize("@ss.hasPermi('sheep_grouping:sheep_grouping:add')")
+    @Log(title = "羊只分组关联", businessType = BusinessType.INSERT)
+    @PostMapping
+    public AjaxResult add(@RequestBody BasSheepGroupMapping basSheepGroupMapping)
+    {
+        return toAjax(basSheepGroupMappingService.insertBasSheepGroupMapping(basSheepGroupMapping));
+    }
+
+    /**
+     * 修改羊只分组关联
+     */
+    @PreAuthorize("@ss.hasPermi('sheep_grouping:sheep_grouping:edit')")
+    @Log(title = "羊只分组关联", businessType = BusinessType.UPDATE)
+    @PutMapping
+    public AjaxResult edit(@RequestBody BasSheepGroupMapping basSheepGroupMapping)
+    {
+        return toAjax(basSheepGroupMappingService.updateBasSheepGroupMapping(basSheepGroupMapping));
+    }
+
+    /**
+     * 删除羊只分组关联
+     */
+    @PreAuthorize("@ss.hasPermi('sheep_grouping:sheep_grouping:remove')")
+    @Log(title = "羊只分组关联", businessType = BusinessType.DELETE)
+	@DeleteMapping("/{ids}")
+    public AjaxResult remove(@PathVariable Long[] ids)
+    {
+        return toAjax(basSheepGroupMappingService.deleteBasSheepGroupMappingByIds(ids));
+    }
+}
diff --git a/zhyc-module/src/main/java/com/zhyc/module/fileManagement/domain/BasSheepGroupMapping.java b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/domain/BasSheepGroupMapping.java
new file mode 100644
index 0000000..37798f3
--- /dev/null
+++ b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/domain/BasSheepGroupMapping.java
@@ -0,0 +1,68 @@
+package com.zhyc.module.fileManagement.domain;
+
+import org.apache.commons.lang3.builder.ToStringBuilder;
+import org.apache.commons.lang3.builder.ToStringStyle;
+import com.zhyc.common.annotation.Excel;
+import com.zhyc.common.core.domain.BaseEntity;
+
+/**
+ * 羊只分组关联对象 bas_sheep_group_mapping
+ * 
+ * @author wyt
+ * @date 2025-07-16
+ */
+public class BasSheepGroupMapping extends BaseEntity
+{
+    private static final long serialVersionUID = 1L;
+
+    /** 主键ID */
+    @Excel(name = "主键ID")
+    private Long id;
+
+    /** 羊只ID */
+    @Excel(name = "羊只ID")
+    private Long sheepId;
+
+    /** 分组ID */
+    @Excel(name = "分组ID")
+    private Long groupId;
+
+    public void setId(Long id) 
+    {
+        this.id = id;
+    }
+
+    public Long getId() 
+    {
+        return id;
+    }
+
+    public void setSheepId(Long sheepId) 
+    {
+        this.sheepId = sheepId;
+    }
+
+    public Long getSheepId() 
+    {
+        return sheepId;
+    }
+
+    public void setGroupId(Long groupId) 
+    {
+        this.groupId = groupId;
+    }
+
+    public Long getGroupId() 
+    {
+        return groupId;
+    }
+
+    @Override
+    public String toString() {
+        return new ToStringBuilder(this,ToStringStyle.MULTI_LINE_STYLE)
+            .append("id", getId())
+            .append("sheepId", getSheepId())
+            .append("groupId", getGroupId())
+            .toString();
+    }
+}
diff --git a/zhyc-module/src/main/java/com/zhyc/module/fileManagement/mapper/BasSheepGroupMapper.java b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/mapper/BasSheepGroupMapper.java
index dcdcaeb..a7a434d 100644
--- a/zhyc-module/src/main/java/com/zhyc/module/fileManagement/mapper/BasSheepGroupMapper.java
+++ b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/mapper/BasSheepGroupMapper.java
@@ -60,4 +60,6 @@ public interface BasSheepGroupMapper
      */
     public int deleteBasSheepGroupByGroupIds(Long[] groupIds);
 
+    List<BasSheepGroup> selectLeafNodes();
+
 }
diff --git a/zhyc-module/src/main/java/com/zhyc/module/fileManagement/mapper/BasSheepGroupMappingMapper.java b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/mapper/BasSheepGroupMappingMapper.java
new file mode 100644
index 0000000..f38bf34
--- /dev/null
+++ b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/mapper/BasSheepGroupMappingMapper.java
@@ -0,0 +1,63 @@
+package com.zhyc.module.fileManagement.mapper;
+
+import java.util.List;
+import com.zhyc.module.fileManagement.domain.BasSheepGroupMapping;
+
+/**
+ * 羊只分组关联Mapper接口
+ * 
+ * @author wyt
+ * @date 2025-07-16
+ */
+public interface BasSheepGroupMappingMapper 
+{
+    /**
+     * 查询羊只分组关联
+     * 
+     * @param id 羊只分组关联主键
+     * @return 羊只分组关联
+     */
+    public BasSheepGroupMapping selectBasSheepGroupMappingById(Long id);
+
+    /**
+     * 查询羊只分组关联列表
+     * 
+     * @param basSheepGroupMapping 羊只分组关联
+     * @return 羊只分组关联集合
+     */
+    public List<BasSheepGroupMapping> selectBasSheepGroupMappingList(BasSheepGroupMapping basSheepGroupMapping);
+
+    /**
+     * 新增羊只分组关联
+     * 
+     * @param basSheepGroupMapping 羊只分组关联
+     * @return 结果
+     */
+    public int insertBasSheepGroupMapping(BasSheepGroupMapping basSheepGroupMapping);
+
+    /**
+     * 修改羊只分组关联
+     * 
+     * @param basSheepGroupMapping 羊只分组关联
+     * @return 结果
+     */
+    public int updateBasSheepGroupMapping(BasSheepGroupMapping basSheepGroupMapping);
+
+    /**
+     * 删除羊只分组关联
+     * 
+     * @param id 羊只分组关联主键
+     * @return 结果
+     */
+    public int deleteBasSheepGroupMappingById(Long id);
+
+    /**
+     * 批量删除羊只分组关联
+     * 
+     * @param ids 需要删除的数据主键集合
+     * @return 结果
+     */
+    public int deleteBasSheepGroupMappingByIds(Long[] ids);
+
+
+}
diff --git a/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/IBasSheepGroupMappingService.java b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/IBasSheepGroupMappingService.java
new file mode 100644
index 0000000..febb461
--- /dev/null
+++ b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/IBasSheepGroupMappingService.java
@@ -0,0 +1,63 @@
+package com.zhyc.module.fileManagement.service;
+
+import java.util.List;
+import com.zhyc.module.fileManagement.domain.BasSheepGroupMapping;
+
+/**
+ * 羊只分组关联Service接口
+ * 
+ * @author wyt
+ * @date 2025-07-16
+ */
+public interface IBasSheepGroupMappingService 
+{
+    /**
+     * 查询羊只分组关联
+     * 
+     * @param id 羊只分组关联主键
+     * @return 羊只分组关联
+     */
+    public BasSheepGroupMapping selectBasSheepGroupMappingById(Long id);
+
+    /**
+     * 查询羊只分组关联列表
+     * 
+     * @param basSheepGroupMapping 羊只分组关联
+     * @return 羊只分组关联集合
+     */
+    public List<BasSheepGroupMapping> selectBasSheepGroupMappingList(BasSheepGroupMapping basSheepGroupMapping);
+
+    /**
+     * 新增羊只分组关联
+     * 
+     * @param basSheepGroupMapping 羊只分组关联
+     * @return 结果
+     */
+    public int insertBasSheepGroupMapping(BasSheepGroupMapping basSheepGroupMapping);
+
+    /**
+     * 修改羊只分组关联
+     * 
+     * @param basSheepGroupMapping 羊只分组关联
+     * @return 结果
+     */
+    public int updateBasSheepGroupMapping(BasSheepGroupMapping basSheepGroupMapping);
+
+    /**
+     * 批量删除羊只分组关联
+     * 
+     * @param ids 需要删除的羊只分组关联主键集合
+     * @return 结果
+     */
+    public int deleteBasSheepGroupMappingByIds(Long[] ids);
+
+    /**
+     * 删除羊只分组关联信息
+     * 
+     * @param id 羊只分组关联主键
+     * @return 结果
+     */
+    public int deleteBasSheepGroupMappingById(Long id);
+
+
+}
diff --git a/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/IBasSheepGroupService.java b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/IBasSheepGroupService.java
index 2bd5c60..7f55e6f 100644
--- a/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/IBasSheepGroupService.java
+++ b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/IBasSheepGroupService.java
@@ -60,5 +60,5 @@ public interface IBasSheepGroupService
      */
     public int deleteBasSheepGroupByGroupId(Long groupId);
 
-
+    List<BasSheepGroup> selectLeafNodes();
 }
diff --git a/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/impl/BasSheepGroupMappingServiceImpl.java b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/impl/BasSheepGroupMappingServiceImpl.java
new file mode 100644
index 0000000..d428848
--- /dev/null
+++ b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/impl/BasSheepGroupMappingServiceImpl.java
@@ -0,0 +1,96 @@
+package com.zhyc.module.fileManagement.service.impl;
+
+import java.util.List;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import com.zhyc.module.fileManagement.mapper.BasSheepGroupMappingMapper;
+import com.zhyc.module.fileManagement.domain.BasSheepGroupMapping;
+import com.zhyc.module.fileManagement.service.IBasSheepGroupMappingService;
+
+/**
+ * 羊只分组关联Service业务层处理
+ * 
+ * @author wyt
+ * @date 2025-07-16
+ */
+@Service
+public class BasSheepGroupMappingServiceImpl implements IBasSheepGroupMappingService 
+{
+    @Autowired
+    private BasSheepGroupMappingMapper basSheepGroupMappingMapper;
+
+    /**
+     * 查询羊只分组关联
+     * 
+     * @param id 羊只分组关联主键
+     * @return 羊只分组关联
+     */
+    @Override
+    public BasSheepGroupMapping selectBasSheepGroupMappingById(Long id)
+    {
+        return basSheepGroupMappingMapper.selectBasSheepGroupMappingById(id);
+    }
+
+    /**
+     * 查询羊只分组关联列表
+     * 
+     * @param basSheepGroupMapping 羊只分组关联
+     * @return 羊只分组关联
+     */
+    @Override
+    public List<BasSheepGroupMapping> selectBasSheepGroupMappingList(BasSheepGroupMapping basSheepGroupMapping)
+    {
+        return basSheepGroupMappingMapper.selectBasSheepGroupMappingList(basSheepGroupMapping);
+    }
+
+    /**
+     * 新增羊只分组关联
+     * 
+     * @param basSheepGroupMapping 羊只分组关联
+     * @return 结果
+     */
+    @Override
+    public int insertBasSheepGroupMapping(BasSheepGroupMapping basSheepGroupMapping)
+    {
+        return basSheepGroupMappingMapper.insertBasSheepGroupMapping(basSheepGroupMapping);
+    }
+
+    /**
+     * 修改羊只分组关联
+     * 
+     * @param basSheepGroupMapping 羊只分组关联
+     * @return 结果
+     */
+    @Override
+    public int updateBasSheepGroupMapping(BasSheepGroupMapping basSheepGroupMapping)
+    {
+        return basSheepGroupMappingMapper.updateBasSheepGroupMapping(basSheepGroupMapping);
+    }
+
+    /**
+     * 批量删除羊只分组关联
+     * 
+     * @param ids 需要删除的羊只分组关联主键
+     * @return 结果
+     */
+    @Override
+    public int deleteBasSheepGroupMappingByIds(Long[] ids)
+    {
+        return basSheepGroupMappingMapper.deleteBasSheepGroupMappingByIds(ids);
+    }
+
+    /**
+     * 删除羊只分组关联信息
+     * 
+     * @param id 羊只分组关联主键
+     * @return 结果
+     */
+    @Override
+    public int deleteBasSheepGroupMappingById(Long id)
+    {
+        return basSheepGroupMappingMapper.deleteBasSheepGroupMappingById(id);
+    }
+
+
+
+}
diff --git a/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/impl/BasSheepGroupServiceImpl.java b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/impl/BasSheepGroupServiceImpl.java
index 970e21d..9df99d3 100644
--- a/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/impl/BasSheepGroupServiceImpl.java
+++ b/zhyc-module/src/main/java/com/zhyc/module/fileManagement/service/impl/BasSheepGroupServiceImpl.java
@@ -108,4 +108,16 @@ public class BasSheepGroupServiceImpl implements IBasSheepGroupService
     {
         return basSheepGroupMapper.deleteBasSheepGroupByGroupId(groupId);
     }
+
+    @Override
+    public List<BasSheepGroup> selectLeafNodes() {
+        List<BasSheepGroup> leafNodes = basSheepGroupMapper.selectLeafNodes();
+        // 如果 ancestorNames 需要格式化，可以复用已有的逻辑
+        leafNodes.forEach(group -> {
+            if (group.getAncestorNames() != null) {
+                group.setAncestorNames(group.getAncestorNames().replace(",", " / "));
+            }
+        });
+        return leafNodes;
+    }
 }
diff --git a/zhyc-module/src/main/resources/mapper/fileManagement/BasSheepGroupMapper.txt b/zhyc-module/src/main/resources/mapper/fileManagement/BasSheepGroupMapper.txt
new file mode 100644
index 0000000..be9a507
--- /dev/null
+++ b/zhyc-module/src/main/resources/mapper/fileManagement/BasSheepGroupMapper.txt
@@ -0,0 +1,80 @@
+This XML file does not appear to have any style information associated with it. The document tree is shown below.
+<mapper namespace="com.zhyc.module.fileManagement.mapper.BasSheepGroupMapper">
+<resultMap type="BasSheepGroup" id="BasSheepGroupResult">
+<result property="groupId" column="group_id"/>
+<result property="parentId" column="parent_id"/>
+<result property="groupName" column="group_name"/>
+<result property="ancestors" column="ancestors"/>
+<result property="ancestorNames" column="ancestor_names"/>
+<result property="isLeaf" column="is_leaf"/>
+<result property="status" column="status"/>
+<result property="createBy" column="create_by"/>
+<result property="createTime" column="create_time"/>
+<result property="updateBy" column="update_by"/>
+<result property="updateTime" column="update_time"/>
+</resultMap>
+<!--     <sql id="selectBasSheepGroupVo"> -->
+<!--         select group_id, parent_id, group_name, ancestors, status, create_by, create_time, update_by, update_time from bas_sheep_group -->
+<!--     </sql> -->
+<!--  修改基础查询语句  -->
+<sql id="selectBasSheepGroupVo">
+SELECT g.group_id, g.parent_id, g.group_name, g.ancestors, g.status, g.create_by, g.create_time, g.update_by, g.update_time,
+<!--  新增祖先名称查询  -->
+(SELECT GROUP_CONCAT(parent.group_name ORDER BY FIND_IN_SET(parent.group_id, g.ancestors)) FROM bas_sheep_group parent WHERE FIND_IN_SET(parent.group_id, g.ancestors) > 0 ) AS ancestor_names, (CASE WHEN (SELECT COUNT(1) FROM bas_sheep_group child WHERE child.parent_id = g.group_id) > 0 THEN 0 ELSE 1 END) AS is_leaf FROM bas_sheep_group g
+</sql>
+<select id="selectBasSheepGroupList" parameterType="BasSheepGroup" resultMap="BasSheepGroupResult">
+<include refid="selectBasSheepGroupVo"/>
+<where>
+<if test="groupName != null and groupName != ''"> and group_name like concat('%', #{groupName}, '%')</if>
+<if test="status != null and status != ''"> and status = #{status}</if>
+</where>
+ORDER BY g.group_id
+<!--  确保正确排序  -->
+</select>
+<select id="selectBasSheepGroupByGroupId" parameterType="Long" resultMap="BasSheepGroupResult">
+<include refid="selectBasSheepGroupVo"/>
+where group_id = #{groupId}
+</select>
+<insert id="insertBasSheepGroup" parameterType="BasSheepGroup" useGeneratedKeys="true" keyProperty="groupId">
+insert into bas_sheep_group
+<trim prefix="(" suffix=")" suffixOverrides=",">
+<if test="parentId != null">parent_id,</if>
+<if test="groupName != null and groupName != ''">group_name,</if>
+<if test="ancestors != null">ancestors,</if>
+<if test="status != null">status,</if>
+<if test="createBy != null">create_by,</if>
+<if test="createTime != null">create_time,</if>
+<if test="updateBy != null">update_by,</if>
+<if test="updateTime != null">update_time,</if>
+</trim>
+<trim prefix="values (" suffix=")" suffixOverrides=",">
+<if test="parentId != null">#{parentId},</if>
+<if test="groupName != null and groupName != ''">#{groupName},</if>
+<if test="ancestors != null">#{ancestors},</if>
+<if test="status != null">#{status},</if>
+<if test="createBy != null">#{createBy},</if>
+<if test="createTime != null">#{createTime},</if>
+<if test="updateBy != null">#{updateBy},</if>
+<if test="updateTime != null">#{updateTime},</if>
+</trim>
+</insert>
+<update id="updateBasSheepGroup" parameterType="BasSheepGroup">
+update bas_sheep_group
+<trim prefix="SET" suffixOverrides=",">
+<if test="parentId != null">parent_id = #{parentId},</if>
+<if test="groupName != null and groupName != ''">group_name = #{groupName},</if>
+<if test="ancestors != null">ancestors = #{ancestors},</if>
+<if test="status != null">status = #{status},</if>
+<if test="createBy != null">create_by = #{createBy},</if>
+<if test="createTime != null">create_time = #{createTime},</if>
+<if test="updateBy != null">update_by = #{updateBy},</if>
+<if test="updateTime != null">update_time = #{updateTime},</if>
+</trim>
+where group_id = #{groupId}
+</update>
+<delete id="deleteBasSheepGroupByGroupId" parameterType="Long"> delete from bas_sheep_group where group_id = #{groupId} </delete>
+<delete id="deleteBasSheepGroupByGroupIds" parameterType="String">
+delete from bas_sheep_group where group_id in
+<foreach item="groupId" collection="array" open="(" separator="," close=")"> #{groupId} </foreach>
+</delete>
+</mapper>
\ No newline at end of file
diff --git a/zhyc-module/src/main/resources/mapper/fileManagement/BasSheepGroupMapper.xml b/zhyc-module/src/main/resources/mapper/fileManagement/BasSheepGroupMapper.xml
index dd632fd..379f397 100644
--- a/zhyc-module/src/main/resources/mapper/fileManagement/BasSheepGroupMapper.xml
+++ b/zhyc-module/src/main/resources/mapper/fileManagement/BasSheepGroupMapper.xml
@@ -49,6 +49,27 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
             <if test="status != null  and status != ''"> and status = #{status}</if>
         </where>ORDER BY g.group_id  <!-- 确保正确排序 -->
     </select>
+
+    <select id="selectLeafNodes" resultMap="BasSheepGroupResult">
+        SELECT g.group_id,
+               g.parent_id,
+               g.group_name,
+               g.ancestors,
+               g.status,
+               g.create_by,
+               g.create_time,
+               g.update_by,
+               g.update_time,
+               (SELECT GROUP_CONCAT(parent.group_name ORDER BY FIND_IN_SET(parent.group_id, g.ancestors))
+                FROM bas_sheep_group parent
+                WHERE FIND_IN_SET(parent.group_id, g.ancestors) > 0) AS ancestor_names,
+               (CASE WHEN (SELECT COUNT(1)
+                           FROM bas_sheep_group child
+                           WHERE child.parent_id = g.group_id) > 0 THEN 0 ELSE 1 END) AS is_leaf
+        FROM bas_sheep_group g
+        WHERE g.status = '0'
+        HAVING is_leaf = 1
+    </select>
     
     <select id="selectBasSheepGroupByGroupId" parameterType="Long" resultMap="BasSheepGroupResult">
         <include refid="selectBasSheepGroupVo"/>
diff --git a/zhyc-module/src/main/resources/mapper/fileManagement/BasSheepGroupMappingMapper.xml b/zhyc-module/src/main/resources/mapper/fileManagement/BasSheepGroupMappingMapper.xml
new file mode 100644
index 0000000..ef8d1de
--- /dev/null
+++ b/zhyc-module/src/main/resources/mapper/fileManagement/BasSheepGroupMappingMapper.xml
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.zhyc.module.fileManagement.mapper.BasSheepGroupMappingMapper">
+    
+    <resultMap type="BasSheepGroupMapping" id="BasSheepGroupMappingResult">
+        <result property="id"    column="id"    />
+        <result property="sheepId"    column="sheep_id"    />
+        <result property="groupId"    column="group_id"    />
+    </resultMap>
+
+    <sql id="selectBasSheepGroupMappingVo">
+        select id, sheep_id, group_id from bas_sheep_group_mapping
+    </sql>
+
+    <select id="selectBasSheepGroupMappingList" parameterType="BasSheepGroupMapping" resultMap="BasSheepGroupMappingResult">
+        <include refid="selectBasSheepGroupMappingVo"/>
+        <where>  
+            <if test="sheepId != null "> and sheep_id = #{sheepId}</if>
+            <if test="groupId != null "> and group_id = #{groupId}</if>
+        </where>
+    </select>
+    
+    <select id="selectBasSheepGroupMappingById" parameterType="Long" resultMap="BasSheepGroupMappingResult">
+        <include refid="selectBasSheepGroupMappingVo"/>
+        where id = #{id}
+    </select>
+
+    <insert id="insertBasSheepGroupMapping" parameterType="BasSheepGroupMapping" useGeneratedKeys="true" keyProperty="id">
+        insert into bas_sheep_group_mapping
+        <trim prefix="(" suffix=")" suffixOverrides=",">
+            <if test="sheepId != null">sheep_id,</if>
+            <if test="groupId != null">group_id,</if>
+         </trim>
+        <trim prefix="values (" suffix=")" suffixOverrides=",">
+            <if test="sheepId != null">#{sheepId},</if>
+            <if test="groupId != null">#{groupId},</if>
+         </trim>
+    </insert>
+
+    <update id="updateBasSheepGroupMapping" parameterType="BasSheepGroupMapping">
+        update bas_sheep_group_mapping
+        <trim prefix="SET" suffixOverrides=",">
+            <if test="sheepId != null">sheep_id = #{sheepId},</if>
+            <if test="groupId != null">group_id = #{groupId},</if>
+        </trim>
+        where id = #{id}
+    </update>
+
+    <delete id="deleteBasSheepGroupMappingById" parameterType="Long">
+        delete from bas_sheep_group_mapping where id = #{id}
+    </delete>
+
+    <delete id="deleteBasSheepGroupMappingByIds" parameterType="String">
+        delete from bas_sheep_group_mapping where id in 
+        <foreach item="id" collection="array" open="(" separator="," close=")">
+            #{id}
+        </foreach>
+    </delete>
+</mapper>
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