diff --git a/ruoyi-modules/ruoyi-student/src/main/java/org/dromara/controller/ClsController.java b/ruoyi-modules/ruoyi-student/src/main/java/org/dromara/controller/ClsController.java
index a1cd71a..fed0267 100644
--- a/ruoyi-modules/ruoyi-student/src/main/java/org/dromara/controller/ClsController.java
+++ b/ruoyi-modules/ruoyi-student/src/main/java/org/dromara/controller/ClsController.java
@@ -4,7 +4,6 @@ import jakarta.annotation.Resource;
 import org.dromara.common.Result;
 import org.dromara.domain.Cls;
 import org.dromara.service.IClsService;
-import org.dromara.service.impl.ClsService;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
diff --git a/ruoyi-modules/ruoyi-student/src/main/java/org/dromara/service/impl/StudentService.java b/ruoyi-modules/ruoyi-student/src/main/java/org/dromara/service/impl/StudentService.java
index de30ae5..0b3ba3b 100644
--- a/ruoyi-modules/ruoyi-student/src/main/java/org/dromara/service/impl/StudentService.java
+++ b/ruoyi-modules/ruoyi-student/src/main/java/org/dromara/service/impl/StudentService.java
@@ -6,6 +6,7 @@ import org.dromara.domain.Student;
 import org.dromara.mapper.StudentMapper;
 import org.dromara.service.IStudentService;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
 @Service
@@ -13,22 +14,27 @@ public class StudentService implements IStudentService {
     @Resource
     private StudentMapper studentMapper;
 
+    @Transactional
     public void add(Student student) {
         studentMapper.insert(student);
     }
 
+    @Transactional
     public void update(Student student) {
         studentMapper.updateById(student);
     }
 
+    @Transactional
     public void deleteById(Integer id) {
         studentMapper.deleteById(id);
     }
 
+    @Transactional(readOnly = true)
     public List<Student> selectAll(Student student) {
         return studentMapper.selectAll(student);
     }
 
+    @Transactional(readOnly = true)
     public Student selectById( Integer id) {
         return studentMapper.selectById(id);
     }