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
weixin_慕丝1473147
2021-03-23 19:46
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);
}
}
}
3回答
-
- Ai_Cliare
- 2023-05-04 16:32:45
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; } -
- 慕沐8789467
- 2022-08-25 20:08:08
已经 按老师的教程完成啦，供大家参考
https://github.com/carrieguo/java-weather-forecast.git
-
- 帝国大学
- 2021-05-05 09:44:50
可能是该城市没有3天7天的数据，可以直接到API页面查询验证数据是否存在。
Java入门第二季
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