调用中央气象台提供的开放接口简单实现获取天气信息

package WeatherInfo; import java.net.URL; import java.util.ArrayList; import GeographicalLocation.GeoLocation; import MyHttpClient.MyHttpClient; public class CityCode { private String code_province; private String code_district; private String code_city; private String city; private String district; private String province; public  CityCode(String province,String district,String city){ this.city = city; this.district = district; this.province = province; //System.out.println(province+" "+district+" "+city); } public String getCodeByURL(String location,String url){ String code = null; try { MyHttpClient httpClient_weather = new MyHttpClient(); String str = httpClient_weather.getContentByURL(url); //System.out.println(str); String[] strArray = str.split(","); for(int i = 0;i < strArray.length;i++){ //System.out.println(strArray[i]); String[] strArr = strArray[i].split("\\|"); if(location.indexOf(strArr[1]) != -1){ code = strArr[0]; //System.out.println(code); } } } catch (Exception e) { // TODO: handle exception } return code; } public String getCodeByURL(String url){ String code = null; try { MyHttpClient httpClient_weather = new MyHttpClient(); String str = httpClient_weather.getContentByURL(url); //System.out.println(str); String[] strArray = str.split("\\|"); code = strArray[1]; //System.out.println(code) } catch (Exception e) { // TODO: handle exception } return code; } public void getProvinceCode(){ String url_province = "http://m.weather.com.cn/data5/city.xml"; code_province = this.getCodeByURL(province, url_province); //System.out.println(code_province); } public void getDistrictCode(){ try { URL url_district = new URL("http://m.weather.com.cn/data5/city"+code_province+".xml"); String urlStr = url_district.toString(); code_district = this.getCodeByURL(district,urlStr); //System.out.println(code_district); } catch (Exception e) { // TODO: handle exception } } public void getCityCode(){ try { this.getProvinceCode(); this.getDistrictCode(); URL url_city = new URL("http://m.weather.com.cn/data5/city"+code_district+".xml"); String urlStr = url_city.toString(); code_city = this.getCodeByURL(city,urlStr); //System.out.println(code_city); } catch (Exception e) { // TODO: handle exception } } public String getWeatherCode(){ String code_weather = null; getCityCode(); try { URL url_weatherCode = new URL("http://m.weather.com.cn/data5/city"+code_city+".xml"); String urlStr = url_weatherCode.toString();  code_weather = this.getCodeByURL(urlStr); //System.out.println(code_weather); return code_weather; } catch (Exception e) { return null;// TODO: handle exception } } public static void main(String[] args){ GeoLocation myGeoLocation = new GeoLocation(); ArrayList<String> location = myGeoLocation.getGeoLocation(); //System.out.println(province+" "+district+" "+city); //String url = "http://m.weather.com.cn/data5/city.xml"; CityCode cityCode = new CityCode(location.get(0),location.get(1),location.get(2)); //cityCode.getCodeByURL(province, url); cityCode.getCityCode(); String cityCode_weather = cityCode.getWeatherCode(); String urlStr = null; try { URL url = new URL("http://m.weather.com.cn/data/"+cityCode_weather+".html"); //URL url = new URL("http://m.weather.com.cn/data/"+101010100+".html"); urlStr = url.toString(); System.out.println(urlStr); } catch (Exception e) { // TODO: handle exception } } } package WeatherInfo; import java.net.URL; import java.util.ArrayList; import net.sf.json.JSONObject; import GeographicalLocation.GeoLocation; import MyHttpClient.MyHttpClient; public class WeatherInfo { public String urlProducer(){ String urlStr = null; GeoLocation myGeoLocation = new GeoLocation(); ArrayList<String> mylocation = myGeoLocation.getGeoLocation(); //System.out.println(province+" "+district+" "+city); CityCode my_CityCode = new CityCode(mylocation.get(0),mylocation.get(1),mylocation.get(2)); //my_CityCode.getCityCode(); String cityCode_weather = my_CityCode.getWeatherCode(); try{ URL url = new URL("http://m.weather.com.cn/data/"+cityCode_weather+".html"); //URL url = new URL("http://m.weather.com.cn/data/"+101010100+".html"); urlStr = url.toString(); //System.out.println(urlStr); } catch (Exception e) { // TODO: handle exception } return urlStr; } public void getWeatherInfo(){ String urlStr = this.urlProducer(); MyHttpClient myHttpClient = new MyHttpClient(); String weatherInfo = myHttpClient.getContentByURL(urlStr); //System.out.println(weatherInfo); this.parseJSONData(weatherInfo); } private void parseJSONData(String weatherInfo){ try { JSONObject data = JSONObject.fromObject(weatherInfo).getJSONObject("weatherinfo"); //JSONObject data = obj.getJSONObject("weatherinfo"); //The following data can be put in a ArrayList or a HashMap;s String city = data.getString("city"); String date = data.getString("date_y"); String week = data.getString("week"); String temp = data.getString("temp1"); String weather = data.getString("weather1"); String wind = data.getString("wind1"); //String fx = data.getString("fx1"); String fl = data.getString("fl1"); String index = data.getString("index"); String index_d = data.getString("index_d"); String index_uv = data.getString("index_uv"); String index_co = data.getString("index_co"); System.out.println("城市： "+city); System.out.println(date+"  "+week); System.out.println("气温： "+temp); System.out.println("天气： "+weather); System.out.println("风速： "+wind); System.out.println("风速级别： "+fl); System.out.println("穿衣指数： "+index+"，"+index_d); System.out.println("紫外线： "+index_uv); System.out.println("舒适指数： "+index_co); } catch (Exception e) { // TODO: handle exception } } public static void main(String[] args){ WeatherInfo weatherInfo = new WeatherInfo(); weatherInfo.getWeatherInfo(); } }