diff --git a/src/main/java/com/sztzjy/resource_center/controller/api/CaseApi.java b/src/main/java/com/sztzjy/resource_center/controller/api/CaseApi.java
index 2ede1a0..7bc3250 100644
--- a/src/main/java/com/sztzjy/resource_center/controller/api/CaseApi.java
+++ b/src/main/java/com/sztzjy/resource_center/controller/api/CaseApi.java
@@ -17,9 +17,7 @@ import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.*;
 
-import java.util.Date;
-import java.util.List;
-import java.util.UUID;
+import java.util.*;
 import java.util.stream.Collectors;
 
 @RestController
@@ -383,4 +381,46 @@ public class CaseApi {
         List<TrainingDto> trainingDtos = caseQuestionStepMapper.selectTrainingByIds(caseStepIdList);
         return trainingDtos;
     }
+
+    //* 单独接口
+//* 获取所有内置案例题步骤信息
+    @AnonymousAccess
+    @ApiOperation("获取所有内置案例题步骤信息")
+    @PostMapping("selectAllStepBySystemOwner")
+    public List<SysCaseQuestionStepWithBLOBs> selectAllStepBySystemOwner(@RequestParam String systemOwner) {
+        SysOneCatalog sysOneCatalogs = getSysOneCatalogs(systemOwner);
+
+        List<String> ids = topicAndCourseMapper.getCaseIdsBySourceIsAdmin(sysOneCatalogs.getOneId());
+        SysCaseQuestionStepExample example1 = new SysCaseQuestionStepExample();
+        example1.createCriteria().andCaseIdIn(ids);
+        return caseQuestionStepMapper.selectByExampleWithBLOBs(example1);
+    }
+
+
+    //* 单独接口
+    @AnonymousAccess
+    @ApiOperation("获取三级ID和案例题ID")
+    @PostMapping("getMapChapterIdAndCaseIdsByCourseIdAndChapterId")
+    public Map<String, List<String>> getMapChapterIdAndCaseIdsByCourseIdAndChapterId(@RequestBody List<SysThreeCatalog> sysThreeCatalogs,
+                                                                                     @RequestParam String systemOwner) {
+        // 批量查询案例题ID
+        Map<String, List<String>> caseIdMap = new HashMap<>();
+        List<String> courseIdList = new ArrayList<>();
+        List<String> chapterIdList = new ArrayList<>();
+        for (SysThreeCatalog chapter : sysThreeCatalogs) {
+            courseIdList.add(chapter.getTwoId());
+            chapterIdList.add(chapter.getThreeId());
+        }
+
+        List<Map<String, Object>> results = caseQuestionMapper.selectCaseIdByCourseAndChapterIds(courseIdList, chapterIdList);
+        for (Map<String, Object> result : results) {
+            String chapterId = (String) result.get("chapter_id");
+            String caseId = (String) result.get("case_id");
+            if (!caseIdMap.containsKey(chapterId)) {
+                caseIdMap.put(chapterId, new ArrayList<>());
+            }
+            caseIdMap.get(chapterId).add(caseId);
+        }
+        return caseIdMap;
+    }
 }
diff --git a/src/main/java/com/sztzjy/resource_center/mapper/SysCaseQuestionMapper.java b/src/main/java/com/sztzjy/resource_center/mapper/SysCaseQuestionMapper.java
index 4867070..73ee095 100644
--- a/src/main/java/com/sztzjy/resource_center/mapper/SysCaseQuestionMapper.java
+++ b/src/main/java/com/sztzjy/resource_center/mapper/SysCaseQuestionMapper.java
@@ -6,6 +6,7 @@ import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
 
 import java.util.List;
+import java.util.Map;
 
 @Mapper
 public interface SysCaseQuestionMapper {
@@ -42,4 +43,6 @@ public interface SysCaseQuestionMapper {
                                                  @Param("source") String source);
 
     List<SysCaseQuestion> selectCaseByConditionsByBind(@Param("title") String title);
+
+    List<Map<String, Object>> selectCaseIdByCourseAndChapterIds(@Param("courseIdList") List<String> courseIdList, @Param("chapterIdList") List<String> chapterIdList);
 }
\ No newline at end of file
diff --git a/src/main/java/com/sztzjy/resource_center/mapper/SysTopicAndCourseMapper.java b/src/main/java/com/sztzjy/resource_center/mapper/SysTopicAndCourseMapper.java
index 648d0ef..42dcc60 100644
--- a/src/main/java/com/sztzjy/resource_center/mapper/SysTopicAndCourseMapper.java
+++ b/src/main/java/com/sztzjy/resource_center/mapper/SysTopicAndCourseMapper.java
@@ -4,6 +4,7 @@ import com.sztzjy.resource_center.entity.SysTopicAndCourse;
 import com.sztzjy.resource_center.entity.SysTopicAndCourseExample;
 import org.apache.ibatis.annotations.Mapper;
 import org.apache.ibatis.annotations.Param;
+import org.apache.ibatis.annotations.Select;
 
 import java.util.List;
 
@@ -40,4 +41,7 @@ public interface SysTopicAndCourseMapper {
 
     void batchUpdateThreeName(@Param("idList") List<String> ids,
                               @Param("threeName") String threeName);
+
+    @Select("select sq.case_id from sys_topic_and_course sc LEFT JOIN sys_case_questions sq on sc.topic_id = sq.case_id where sq.source = '管理员' and sc.one_id = #{oneId}")
+    List<String> getCaseIdsBySourceIsAdmin(@Param("oneId") String oneId);
 }
\ No newline at end of file
diff --git a/src/main/resources/mapper/SysCaseQuestionMapper.xml b/src/main/resources/mapper/SysCaseQuestionMapper.xml
index 9d45f04..89b68e6 100644
--- a/src/main/resources/mapper/SysCaseQuestionMapper.xml
+++ b/src/main/resources/mapper/SysCaseQuestionMapper.xml
@@ -470,4 +470,17 @@
         </where>
         order by s.create_time
     </select>
+
+    <select id="selectCaseIdByCourseAndChapterIds" resultType="map">
+        SELECT chapter_id, case_id
+        FROM sys_case_question
+        WHERE course_id IN
+        <foreach collection="courseIdList" item="courseId" open="(" separator="," close=")">
+            #{courseId}
+        </foreach>
+        AND chapter_id IN
+        <foreach collection="chapterIdList" item="chapterId" open="(" separator="," close=")">
+            #{chapterId}
+        </foreach>
+    </select>
 </mapper>
\ No newline at end of file