@ResponseBody
@RequestMapping(value = "list", method = RequestMethod.GET)
public Map<String, Object> listClassroom() {
Map<String, Object> m = new HashMap<>();
List<ClassRoom> classrooms;
try {
classrooms = classroomDao.listClassroom();
m.put("item", classrooms);
return m;
} catch (Exception ex) {
m.put("error", ex.getMessage());
return m;
}
}
