解决学生信息查询报错问题

src/main/java/com/xjrsoft/module/student/controller/StudentManagerController.java

@@ -146,7 +146,10 @@ public class StudentManagerController {
         for (BaseStudentSchoolRollVo roll : userVo.getBaseStudentSchoolRollList()) {
             BaseClass aClass = baseClassService.getById(roll.getClassId());
             XjrUser xjrUser = xjrUserService.getById(aClass.getTeacherId());
-            roll.setTeacherName(xjrUser.getName());
+            if(xjrUser != null){
+                roll.setTeacherName(xjrUser.getName());
+            }
+
 
             String roomName = roomBedService.getRoomNameByStudentUserId(roll.getUserId());
             roll.setRoomName(roomName);