24小時查的到，但是3天七天卻查不到信息，這是為啥，明明是同樣的代碼

if(a==1){

System.out.print("請輸入城市名稱查詢24小時天氣預(yù)報：");

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("未查詢到數(shù)據(jù)");

? ? }else{

? ? for(HourWeather hourWeather:weatherList){

? ? String template="%s月%s日%s時|%-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("請輸入城市名稱查詢3天天氣預(yù)報：");

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("未查詢到信息");

? ? }else{

? ? for(DayWeather weather:weatherList){

? ? String template="%-2s月%-2s日|氣溫:%s(日)%s(夜)|天氣:%s(日)%s(夜)|風(fēng)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("請輸入城市名稱查詢7天天氣預(yù)報：");

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("未查詢到信息");

? ? }else{

? ? for(DayWeather weather:weatherList){

? ? String template="%-2s月%-2s日|氣溫:%s(日)%s(夜)|天氣:%s(日)%s(夜)|風(fēng)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_慕絲1473147

2021-03-23

源自：Java入門第二季 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?{
????????//新建查詢請求
????????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();
????????//獲取服務(wù)器返回數(shù)據(jù)
????????String?resBody?=?response.body().string();
????????Map?result?=?gson.fromJson(resBody,?new?TypeToken<Map>()?{
????????}.getType());
????????//包裝為對象集合
????????//?*************?以下是修改部分?********************
????????List<Map<String,?String>>?dayList?=?this.getValue(result,?"showapi_res_body.dayList",?ArrayList.class);
????????//如果沒有找到對應(yīng)地區(qū)天氣數(shù)據(jù)，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;
}