diff --git a/src/main/java/com/yipin/liuwanr/mapper/AssesmentMapper.java b/src/main/java/com/yipin/liuwanr/mapper/AssesmentMapper.java
index 268d099..07649db 100644
--- a/src/main/java/com/yipin/liuwanr/mapper/AssesmentMapper.java
+++ b/src/main/java/com/yipin/liuwanr/mapper/AssesmentMapper.java
@@ -185,8 +185,9 @@ public interface AssesmentMapper {
      * @param staffId
      * @return
      */
-    @Select("select creationTime from experimental_class_ning WHERE isdel=0 and founder=(select staffName from staff where staffId=#{staffId}) GROUP BY creationTime ORDER BY creationTime desc")
-    List<String> queryCreationTime(Integer staffId);
+    @Select("select DISTINCT DATE_FORMAT(creationTime,'%Y') as creationTime from experimental_class_ning " +
+            " WHERE isdel=0 and founder=(select staffName from staff where staffId=#{staffId}) GROUP BY creationTime ORDER BY creationTime desc ")
+    List<ExperimentalClass> queryCreationTime(Integer staffId);
 
 
     /**
@@ -195,7 +196,7 @@ public interface AssesmentMapper {
      * @param creationTime
      * @return
      */
-    @Select("select experimentalClassId,experimentalClassName from experimental_class_ning where isdel=0 and creationTime=#{creationTime} and founder=(select staffName from staff where staffId=#{staffId})")
+    @Select("select experimentalClassId,experimentalClassName from experimental_class_ning where isdel=0 and creationTime like concat('%',#{creationTime},'%') and founder=(select staffName from staff where staffId=#{staffId})")
     @Results({
             @Result(id = true, column = "experimentalClassId", property = "experimentalClassId"),
             @Result(column = "experimentalClassName", property = "experimentalClassName"),
diff --git a/src/main/java/com/yipin/liuwanr/service/AssesmentService.java b/src/main/java/com/yipin/liuwanr/service/AssesmentService.java
index c828ae4..fee4af8 100644
--- a/src/main/java/com/yipin/liuwanr/service/AssesmentService.java
+++ b/src/main/java/com/yipin/liuwanr/service/AssesmentService.java
@@ -299,7 +299,6 @@ public class AssesmentService {
 
     /**
      * 查询实验班级一级栏目
-     *
      * @param staffId：教师id
      * @return
      */