update

mec-biz/src/main/java/com/ym/mec/biz/dal/dao/StudentDao.java

@@ -17,5 +17,5 @@ public interface StudentDao extends com.ym.mec.common.dal.BaseDAO<Integer, Stude
     
     List<Student> queryByOperatingTag(Integer operatingTag);
     
-    int batchUpdate(List<Student> studentList);
+    int batchUpdate(@Param("studentList") List<Student> studentList);
 }