diff --git a/src/main/java/com/sqx/modules/course/service/impl/CourseServiceImpl.java b/src/main/java/com/sqx/modules/course/service/impl/CourseServiceImpl.java
index c36a4def..ef4456e2 100644
--- a/src/main/java/com/sqx/modules/course/service/impl/CourseServiceImpl.java
+++ b/src/main/java/com/sqx/modules/course/service/impl/CourseServiceImpl.java
@@ -88,7 +88,7 @@ public class CourseServiceImpl extends ServiceImpl<CourseDao, Course> implements
 
     private void setCache(String key, String value) {
         key = getIndexKey(key);
-        redisUtils.set(key, value, 600);
+        redisUtils.set(key, value, 60 * 60 * 3);
     }
 
     private String getCache(String key) {
@@ -174,26 +174,10 @@ public class CourseServiceImpl extends ServiceImpl<CourseDao, Course> implements
                     sort, startTime, endTime, userId, isPrice, over, wxCourse, dyCourse, wxShow, dyShow);
             List<Map<String, Object>> records = mapIPage.getRecords();
             for (Map<String, Object> map : records) {
-                Object courseDetailsId = map.get("courseDetailsId");
-                Object courseId = map.get("courseId");
-                if (courseDetailsId != null) {
-                    CourseDetails courseDetails = courseDetailsDao.selectById(Long.parseLong(String.valueOf(courseDetailsId)));
-                    if (courseDetails != null) {
-                        map.put("courseDetailsName", courseDetails.getCourseDetailsName());
-                        map.put("dyEpisodeId", courseDetails.getDyEpisodeId());
-                        map.put("wxCourseDetailsId", courseDetails.getWxCourseDetailsId());
-                    }
-                } else {
-                    //默认取第一集
-                    CourseDetails courseDetails = courseDetailsDao.selectOne(new QueryWrapper<CourseDetails>().eq("course_id", courseId)
-                            .orderByAsc("sort").last(" limit 1"));
-                    if (courseDetails != null) {
-                        map.put("courseDetailsId", courseDetails.getCourseDetailsId());
-                        map.put("courseDetailsName", courseDetails.getCourseDetailsName());
-                        map.put("dyEpisodeId", courseDetails.getDyEpisodeId());
-                        map.put("wxCourseDetailsId", courseDetails.getWxCourseDetailsId());
-                    }
-                }
+                map.put("courseDetailsId", null);
+                map.put("courseDetailsName", "");
+                map.put("dyEpisodeId", "");
+                map.put("wxCourseDetailsId", "");
             }
             setCache(cacheKey, JSONUtil.toJsonStr(new PageUtils(mapIPage)));
             return Result.success().put("data", new PageUtils(mapIPage));
@@ -202,16 +186,10 @@ public class CourseServiceImpl extends ServiceImpl<CourseDao, Course> implements
                 sort, startTime, endTime, userId, isPrice, over, wxCourse, dyCourse, wxShow, dyShow);
         List<Map<String, Object>> records = mapIPage.getRecords();
         for (Map<String, Object> map : records) {
-            Object courseId = map.get("courseId");
-            //默认取第一集
-            CourseDetails courseDetails = courseDetailsDao.selectOne(new QueryWrapper<CourseDetails>().eq("course_id", courseId)
-                    .orderByAsc("sort").last(" limit 1"));
-            if (courseDetails != null) {
-                map.put("courseDetailsId", courseDetails.getCourseDetailsId());
-                map.put("courseDetailsName", courseDetails.getCourseDetailsName());
-                map.put("dyEpisodeId", courseDetails.getDyEpisodeId());
-                map.put("wxCourseDetailsId", courseDetails.getWxCourseDetailsId());
-            }
+            map.put("courseDetailsId", null);
+            map.put("courseDetailsName", "");
+            map.put("dyEpisodeId", "");
+            map.put("wxCourseDetailsId", "");
         }
         setCache(cacheKey, JSONUtil.toJsonStr(new PageUtils(mapIPage)));
         return Result.success().put("data", new PageUtils(mapIPage));
diff --git a/src/main/resources/mapper/course/CourseDao.xml b/src/main/resources/mapper/course/CourseDao.xml
index a8118457..274f9437 100644
--- a/src/main/resources/mapper/course/CourseDao.xml
+++ b/src/main/resources/mapper/course/CourseDao.xml
@@ -31,39 +31,19 @@
         c.course_type as courseType,
         c.banner_id as bannerId,
         b.name as bannerName,
-        (select sum(cd.view_count) from course_details cd where cd.course_id = c.course_id ) as viewCounts,
+        0 as viewCounts,
         c.dy_img_id as dyImgId,
         c.dy_course_id as dyCourseId,
         c.wx_course_id as wxCourseId,
         c.wx_show as wxShow,
         c.dy_show as dyShow,
         c.sort,
-        (select sum(good_num) from course_details d where d.course_id=c.course_id ) as goodNum,
-        (select count(*) from course_details d where d.course_id=c.course_id ) as courseDetailsCount,
-          <if test="userId!=null">
-              (
-              SELECT
-              cc.course_details_id
-              FROM
-              course_collect cc
-              WHERE
-              cc.course_id = c.course_id
-              AND cc.classify = 3
-              and cc.user_id = #{userId}
-              ORDER BY
-              cc.update_time desc
-              LIMIT 1
-              ) AS courseDetailsId,
-          </if>
-          <if test="userId==null">
-              null AS courseDetailsName,
-              null AS courseDetailsId,
-          </if>
-
-        (select count(*) from course_collect d where d.course_id=c.course_id
-        and date_format(create_time,'%Y-%m-%d')>=date_format(#{startTime},'%Y-%m-%d') and
-        date_format(create_time,'%Y-%m-%d')&lt;=date_format(#{endTime},'%Y-%m-%d') ) as weekGoodNum,
-        (select count(*) from course_details cd where c.course_id=cd.course_id and cd.good=1 ) as isRecommend
+        0 as goodNum,
+        0 as courseDetailsCount,
+        null AS courseDetailsName,
+        null AS courseDetailsId,
+        0 as weekGoodNum,
+        0 as isRecommend
         FROM
         course AS c
         LEFT JOIN course_classification AS cc ON c.classify_id = cc.classification_id
@@ -113,6 +93,8 @@
         <if test="dyCourse!=null">
             and c.dy_status=4
         </if>
+        order by c.sort asc,c.create_time desc
+        <!--
         <if test="sort==null">
             order by c.sort asc
         </if>
@@ -122,6 +104,7 @@
         <if test="sort!=null and sort==2">
             order by weekGoodNum desc
         </if>
+        -->
     </select>
 
     <select id="selectCourseAdmin" resultType="Map">
@@ -241,6 +224,8 @@
         <if test="dyCourse!=null">
             and c.dy_status=4
         </if>
+        order by c.sort asc,c.create_time desc
+        <!--
         <if test="sort==null">
             order by c.sort asc,c.create_time desc
         </if>
@@ -250,6 +235,7 @@
         <if test="sort!=null and sort==2">
             order by weekGoodNum desc
         </if>
+        -->
     </select>
 
     <select id="selectCourseTitle" resultType="Map">