JAvaは天気情報(和風無料api)を取得しjsonを解析する

	//      
    private static WeatherReportInfo getTodayWeather(String cityName)
            throws IOException {
        //        API
        String url1= "https://free-api.heweather.net/s6/weather/now?location="+cityName+"&key=3c3fa198cacc4152b94b20def11b2455";
        URL url = new URL(url1);
        URLConnection connectionData = url.openConnection();
        connectionData.setConnectTimeout(1000);
        BufferedReader br = null;
        try {
            br = new BufferedReader(new InputStreamReader(
                    connectionData.getInputStream(), "UTF-8"));
            StringBuilder sb = new StringBuilder();
            String line = null;
            while ((line = br.readLine()) != null) {
                sb.append(line);
            }
            String json = sb.toString();
            //  google Gson  ，   fastJson    ，  fastJson            
            //   api   json   "{"HeWeather6": "xxxx"}"
            WeatherReportInfo weatherReportInfo = new Gson().fromJson(json, WeatherReportInfo.class);
            return weatherReportInfo;
        } catch (SocketTimeoutException e) {
            log.error("    ");
            throw new RuntimeException("    ");
        }finally {
            IOUtils.closeQuietly(br);
        }
    }

@Data
public class WeatherReportInfo {

    private List<Weather> HeWeather6;
}

@Data
public class Weather {

    private Basic basic;

    private Update update;

    private Now now;

    private String status;

    @Data
    public static class Basic {

        //  ／  ID
        private String cid;
        //  ／    
        private String location;
        //   ／       
        private String parent_city;
        //   ／        
        private String admin_area;
        //   ／        
        private String cnty;
        //  ／    
        private String lat;
        //  ／    
        private String lon;
        //   ／      
        private String tz;
    }

    @Data
    public static class Update {

        //    ，24   ，  yyyy-MM-dd HH:mm
        private String loc;
        //UTC  ，24   ，  yyyy-MM-dd HH:mm
        private String utc;
    }

    @Data
    public static class Now {

        private String cloud;
        //        
        private String cond_code;
        //        
        private String cond_txt;
        //    ，    ：   
        private String fl;
        //    
        private String hum;
        //   
        private String pcpn;
        //    
        private String pres;
        //  ，    ：   
        private String tmp;
        //   ，    ：  
        private String vis;
        //  360  
        private String wind_deg;
        //  
        private String wind_dir;
        //  
        private String wind_sc;
        //  ，  /  
        private String wind_spd;
    }
}