设置班委修改

src/main/java/com/peanut/modules/common/controller/ClassController.java

@@ -177,6 +177,7 @@ public class ClassController {
 
     //设置班委
     @RequestMapping("/setUserRole")
+    @Transactional
     public R setUserRole(@RequestBody Map<String,Object> params){
         return classEntityService.setUserRole(params);
     }