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                        /Java入门第二季 升级版

24小时查的到，但是3天七天却查不到信息，这是为啥，明明是同样的代码

if(a==1){

System.out.print("请输入城市名称查询24小时天气预报：");

String city=in.next();

WeatherUtils weatherUtils =new WeatherUtilsImpl();

List<HourWeather> weatherList=weatherUtils.w24h("0d8abeeafc364b5aaa73b7e52ceb83ba", city);

// System.out.println(weatherList);

if(weatherList.size()==0){

System.out.println("未查询到数据");

}else{

for(HourWeather hourWeather:weatherList){

String template="%s月%s日%s时|%-3s|%-20s|%-8s|%-4s";

String row=String.format(template, new String[]{

hourWeather.getMonth(),

hourWeather.getDay(),

hourWeather.getHour(),

hourWeather.getWindDirection(),

hourWeather.getWindPower(),

hourWeather.getWeather(),

hourWeather.getTemperature()

});

System.out.println(row);

}

}else if(a==2){

System.out.print("请输入城市名称查询3天天气预报：");

String city=in.next();

WeatherUtils weatherUtils =new WeatherUtilsImpl();

List<DayWeather> weatherList=weatherUtils.w3d("0d8abeeafc364b5aaa73b7e52ceb83ba", city);

// System.out.println(weatherList);

if(weatherList.size()==0){

System.out.println("未查询到信息");

}else{

for(DayWeather weather:weatherList){

String template="%-2s月%-2s日|气温:%s(日)%s(夜)|天气:%s(日)%s(夜)|风力:%s(日)%s(夜)";

String row =String.format(template, new String[]{

weather.getMonth(),

weather.getDay(),

weather.getDayAirTemperature(),

weather.getNightAirTemperature(),

weather.getDayWeather(),

weather.getNightWeather(),

weather.getDayWindPower(),

weather.getNightWindPower()

});

System.out.println(row);

}

}else if(a==3){

System.out.print("请输入城市名称查询7天天气预报：");

String city=in.next();

WeatherUtils weatherUtils =new WeatherUtilsImpl();

List<DayWeather> weatherList=weatherUtils.w7d("0d8abeeafc364b5aaa73b7e52ceb83ba", city);

// System.out.println(weatherList);

if(weatherList.size()==0){

System.out.println("未查询到信息");

}else{

for(DayWeather weather:weatherList){

String template="%-2s月%-2s日|气温:%s(日)%s(夜)|天气:%s(日)%s(夜)|风力:%s(日)%s(夜)";

String row =String.format(template, new String[]{

weather.getMonth(),

weather.getDay(),

weather.getDayAirTemperature(),

weather.getNightAirTemperature(),

weather.getDayWeather(),

weather.getNightWeather(),

weather.getDayWindPower(),

weather.getNightWindPower()

});

System.out.println(row);

}

weixin_慕丝1473147

2021-03-23

源自：Java入门第二季升级版 5-5

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3 回答

Ai_Cliare
2023-05-04

public List<DayWeather> w3d(String appCode, String area) {
    List<DayWeather> resultList = new ArrayList<DayWeather>();
    try {
        //新建查询请求
        OkHttpClient client = new OkHttpClient();
        Request request = new Request.Builder()
                .get()
                .url("http://ali-weather.showapi.com/day15?area=" + area)
                .header("Authorization", "APPCODE " + appCode)
                .build();
        Call call = client.newCall(request);
        Response response = call.execute();
        Gson gson = new GsonBuilder()
                .setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_UNDERSCORES)
                .create();
        //获取服务器返回数据
        String resBody = response.body().string();
        Map result = gson.fromJson(resBody, new TypeToken<Map>() {
        }.getType());
        //包装为对象集合
        // ************* 以下是修改部分 ********************
        List<Map<String, String>> dayList = this.getValue(result, "showapi_res_body.dayList", ArrayList.class);
        //如果没有找到对应地区天气数据，返回空的List列表
        if (dayList == null || dayList.size() == 0) {
            return new ArrayList<DayWeather>();
        }
        Iterator<Map<String, String>> iterator = dayList.iterator();
        for (int i = 0; i < 3; i++) {
            if (iterator.hasNext()) {
                Map<String, String> day = iterator.next();
                DayWeather dayWeather = new DayWeather();
                dayWeather.setYear(day.get("daytime").substring(0, 4));
                dayWeather.setMonth(day.get("daytime").substring(4, 6));
                dayWeather.setDay(day.get("daytime").substring(6, 8));
                dayWeather.setDayAirTemperature(day.get("day_air_temperature"));
                dayWeather.setNightAirTemperature(day.get("night_air_temperature"));
                dayWeather.setDayWeather(day.get("day_weather"));
                dayWeather.setNightWeather(day.get("night_weather"));
                dayWeather.setDayWindPower(day.get("day_wind_power"));
                dayWeather.setNightWindPower(day.get("night_wind_power"));
                resultList.add(dayWeather);
            }
        }
        // ************* 以上是修改部分 ********************

    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    return resultList;
}