diff --git a/src/main/java/com/sztzjy/resource_center/controller/CaseStepController.java b/src/main/java/com/sztzjy/resource_center/controller/CaseStepController.java
index f078878..b631845 100644
--- a/src/main/java/com/sztzjy/resource_center/controller/CaseStepController.java
+++ b/src/main/java/com/sztzjy/resource_center/controller/CaseStepController.java
@@ -55,7 +55,7 @@ public class CaseStepController {
     @PostMapping("updateCase")
     public ResultEntity<HttpStatus> updateCase(@RequestBody SysCaseQuestionStepWithBLOBs caseQuestionStepWithBLOBs,
                                                @ApiParam("谁调的请求，传管理员/学校ID") @RequestParam String source) {
-        List<SysTopicAndCourse> sysTopicAndCourses = getSysTopicAndCourses(caseQuestionStepWithBLOBs.getCaseId());
+//        List<SysTopicAndCourse> sysTopicAndCourses = getSysTopicAndCourses(caseQuestionStepWithBLOBs.getCaseId());
 //        if (!sysTopicAndCourses.isEmpty()) {
 //            return new ResultEntity<>(HttpStatus.BAD_REQUEST, "该案例题正在被使用!");
 //        }
@@ -63,7 +63,7 @@ public class CaseStepController {
             //todo 管理员任意修改，老师只能改自己的
             SysCaseQuestion sysCaseQuestion = sysCaseQuestionMapper.selectByPrimaryKey(caseQuestionStepWithBLOBs.getCaseId());
             if ("管理员".equals(source) || source.equals(sysCaseQuestion.getSource())) {
-                caseQuestionStepMapper.updateByPrimaryKey(caseQuestionStepWithBLOBs);
+                caseQuestionStepMapper.updateByPrimaryKeyWithBLOBs(caseQuestionStepWithBLOBs);
                 return new ResultEntity<>(HttpStatus.OK, "编辑成功!");
             } else {
                 return new ResultEntity<>(HttpStatus.BAD_REQUEST, "权限不足!");
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 9b2c28d..989b15e 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
@@ -293,6 +293,7 @@ public class CaseApi {
 
         SysCaseQuestionExample example1 = new SysCaseQuestionExample();
         example1.createCriteria().andCaseIdIn(collect).andSourceEqualTo("管理员");
+        example1.setOrderByClause("create_time");
         List<SysCaseQuestion> list = caseQuestionMapper.selectByExampleWithBLOBs(example1);
         return list;
     }
@@ -307,12 +308,8 @@ public class CaseApi {
     @PostMapping("selectCaseStepListBatchByIdListAndSort")
     @ApiOperation("查询案例题步骤并排序")
     @AnonymousAccess
-    public List<SysCaseQuestionStepWithBLOBs> selectCaseStepListBatchByIdListAndSort(@RequestBody List<String> caseIdList) {
-        SysCaseQuestionStepExample example = new SysCaseQuestionStepExample();
-        example.createCriteria().andCaseIdIn(caseIdList);
-        example.setOrderByClause("sort");
-        List<SysCaseQuestionStepWithBLOBs> sysCaseQuestionStepWithBLOBs = caseQuestionStepMapper.selectByExampleWithBLOBs(example);
-        return sysCaseQuestionStepWithBLOBs;
+    public List<SysCaseQuestionStepWithBLOBs> selectCaseStepListBatchByIdListAndSort(@RequestParam String threeId) {
+      return caseQuestionStepMapper.selectCaseStepListBatchByIdListAndSort(threeId);
     }
 
 
diff --git a/src/main/java/com/sztzjy/resource_center/controller/api/ResourceDataApi.java b/src/main/java/com/sztzjy/resource_center/controller/api/ResourceDataApi.java
index d802ce9..9487714 100644
--- a/src/main/java/com/sztzjy/resource_center/controller/api/ResourceDataApi.java
+++ b/src/main/java/com/sztzjy/resource_center/controller/api/ResourceDataApi.java
@@ -126,7 +126,7 @@ public class ResourceDataApi {
             List<Map<String, String>> filePaths = sysResourceDataMapper.getByIds(ids);
             String zipName = "TZ_" + ((int) (Math.random() * 10000)) + ".zip";
             String zipPath = filePath + "/" + zipName;
-            CompressUtil.compress(filePaths, zipPath, false);
+            CompressUtil.compress11(filePaths, zipPath, false);
             File pocZipFile = new File(zipPath);
             CompressUtil.downloadZip(response, zipName, pocZipFile);
             pocZipFile.delete();
diff --git a/src/main/java/com/sztzjy/resource_center/mapper/SysCaseQuestionStepMapper.java b/src/main/java/com/sztzjy/resource_center/mapper/SysCaseQuestionStepMapper.java
index 007d1ec..69b44c5 100644
--- a/src/main/java/com/sztzjy/resource_center/mapper/SysCaseQuestionStepMapper.java
+++ b/src/main/java/com/sztzjy/resource_center/mapper/SysCaseQuestionStepMapper.java
@@ -45,4 +45,6 @@ public interface SysCaseQuestionStepMapper {
     List<TrainingDto> selectTrainingByIds(@Param("list") List<String> caseStepIdList);
 
     List<SysCaseQuestionStepWithBLOBs> getCaseStepByIds(@Param("ids") List<String> ids);
+
+    List<SysCaseQuestionStepWithBLOBs> selectCaseStepListBatchByIdListAndSort(@Param("threeId") String threeId);
 }
\ No newline at end of file
diff --git a/src/main/java/com/sztzjy/resource_center/util/CompressUtil.java b/src/main/java/com/sztzjy/resource_center/util/CompressUtil.java
index 40ba6f6..8748cf9 100644
--- a/src/main/java/com/sztzjy/resource_center/util/CompressUtil.java
+++ b/src/main/java/com/sztzjy/resource_center/util/CompressUtil.java
@@ -48,7 +48,51 @@ public class CompressUtil {
                 if (keepDirStructure != null && keepDirStructure) {
                     zos.putNextEntry(new ZipEntry(relativePath));
                 } else {
-                    zos.putNextEntry(new ZipEntry(i + "_" + relativeName));
+                    zos.putNextEntry(new ZipEntry(relativeName));
+                }
+                int len;
+                while ((len = fis.read(buf)) > 0) {
+                    zos.write(buf, 0, len);
+                }
+                zos.closeEntry();
+                // zos.close();
+            }
+            zos.close();
+            if (!zipFile.exists()) {
+                zipFile.createNewFile();
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+
+    /**
+     * 生成zip压缩文件
+     * @param filePaths
+     * @param zipFilePath
+     * @param keepDirStructure
+     */
+    public static void compress11(List<Map<String, String>> filePaths, String zipFilePath, Boolean keepDirStructure) {
+        byte[] buf = new byte[1024];
+        File zipFile = new File(zipFilePath);
+        try {
+            ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(zipFile));
+            for (int i = 0; i < filePaths.size(); i++) {
+                String relativeName = filePaths.get(i).get("resource_name");
+                String relativePath = filePath+filePaths.get(i).get("url");
+                if (StringUtils.isEmpty(relativePath)) {
+                    continue;
+                }
+                File sourceFile = new File(relativePath);
+                if (sourceFile == null || !sourceFile.exists()) {
+                    continue;
+                }
+                FileInputStream fis = new FileInputStream(sourceFile);
+                if (keepDirStructure != null && keepDirStructure) {
+                    zos.putNextEntry(new ZipEntry(relativePath));
+                } else {
+                    zos.putNextEntry(new ZipEntry(relativeName));
                 }
                 int len;
                 while ((len = fis.read(buf)) > 0) {
diff --git a/src/main/resources/mapper/SysCaseQuestionStepMapper.xml b/src/main/resources/mapper/SysCaseQuestionStepMapper.xml
index 0a95801..809df3a 100644
--- a/src/main/resources/mapper/SysCaseQuestionStepMapper.xml
+++ b/src/main/resources/mapper/SysCaseQuestionStepMapper.xml
@@ -421,7 +421,8 @@
     </resultMap>
 
     <select id="selectTrainingByIds" resultMap="DtoBaseResultMap">
-        SELECT SUM(sqs.score) AS total_steps_score, sqs.case_id,COUNT(sqs.case_step_id) AS total_steps_count, sq.title, s3.three_name
+        SELECT SUM(sqs.score) AS total_steps_score, sqs.case_id,COUNT(sqs.case_step_id) AS total_steps_count, sq.title,
+        s3.three_name
         FROM sys_case_question_steps sqs
         JOIN sys_case_questions sq ON sqs.case_id = sq.case_id
         JOIN sys_topic_and_course s3 ON sq.case_id = s3.topic_id
@@ -440,4 +441,15 @@
             #{item}
         </foreach>
     </select>
+
+    <select id="selectCaseStepListBatchByIdListAndSort" resultMap="ResultMapWithBLOBs">
+        SELECT sc.*
+        from sys_case_question_steps sc
+                 left join sys_case_questions s
+                           on sc.case_id = s.case_id
+                 left join sys_topic_and_course st
+                           on st.topic_id = s.case_id
+        where st.three_id = #{threeId}
+        order by s.create_time ,sc.sort
+    </select>
 </mapper>
\ No newline at end of file