/**
     * @Description 查询天气方法
     * @author HC
     */
    @At("/getWeatherKCDataTime")
    public Object getWeatherKCDataTime(@Param("DDATE")String ddate){
        List<WeatherData> timekc;
        try {
            timekc = weatherDataService.query(Cnd.where("DDATE","like",ddate));
            return timekc;
        } catch (Exception e) {
            e.printStackTrace();
            return -1;
        }
    }

报错：ddate从前端取的值拿到了，但是在timekc = weatherDataService.query(Cnd.where("DDATE","like",ddate));报ddate标识符无效