public class ClazzController { @Autowired private GradeService gradeService; @Autowired private ClazzService clazzService; /** * 班级列表页 * @param model * @return */ @RequestMapping(value="/list",method=RequestMethod.GET) public ModelAndView list(ModelAndView model){ model.setViewName("clazz/clazz_list"); List<Grade> findAll = gradeService.findAll(); model.addObject("gradeList",findAll ); model.addObject("gradeListJson",JSONArray.fromObject(findAll)); return model; }给这段代码加上注释

public class ClazzController {
    @Autowired
    private GradeService gradeService; // 注入年级服务

    @Autowired
    private ClazzService clazzService; // 注入班级服务

    /**
     * 班级列表页
     * @param model
     * @return
     */
    @RequestMapping(value="/list",method=RequestMethod.GET)
    public ModelAndView list(ModelAndView model){
        model.setViewName("clazz/clazz_list"); // 设置视图名称为 clazz/clazz_list

        List<Grade> findAll = gradeService.findAll(); // 获取所有年级信息
        model.addObject("gradeList",findAll ); // 将年级信息添加到视图中
        model.addObject("gradeListJson",JSONArray.fromObject(findAll)); // 将年级信息转换为 JSON 字符串并添加到视图中

        return model; // 返回视图模型
    }
}

注释已经添加在代码中。