webservice引用天气预报实例

import java.io.IOException; import java.io.InputStream; import java.io.UnsupportedEncodingException; import java.net.MalformedURLException; import java.net.URL; import java.net.URLConnection; import java.util.ArrayList; import java.util.List; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import org.w3c.dom.DOMException; import org.w3c.dom.Document; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import org.xml.sax.SAXException; public class WeatherUtil { private static String SERVICES_HOST = "www.webxml.com.cn";     private static String WEATHER_SERVICES_URL = "http://webservice.webxml.com.cn/WebServices/WeatherWS.asmx/";     private static String PROVINCE_CODE_URL = WEATHER_SERVICES_URL                                                + "getRegionProvince";     private static String CITY_CODE_URL = WEATHER_SERVICES_URL                                           + "getSupportCityString?theRegionCode=";     private static String WEATHER_QUERY_URL = WEATHER_SERVICES_URL                                               + "getWeather?theUserID=&theCityCode=";               private WeatherUtil(){}          public static void main(String[] args) throws Exception{     int provinceCode = getProvinceCode("河北");    //3119     int cityCode = getCityCode(provinceCode, "石家庄");    //974     List<String> weatherList = getWeather(cityCode);         for(String weather:weatherList){            System.out.println(weather);         }     }          public static int getProvinceCode(String provinceName){         Document document;         DocumentBuilderFactory documentBF = DocumentBuilderFactory.newInstance();         documentBF.setNamespaceAware(true);         int provinceCode = 0;         try{ DocumentBuilder documentB = documentBF.newDocumentBuilder(); InputStream inputStream = getSoapInputStream(PROVINCE_CODE_URL);    //具体webService相关 document = documentB.parse(inputStream); NodeList nodeList = document.getElementsByTagName("string");    //具体webService相关 int len = nodeList.getLength(); for(int i = 0; i < len; i++){ Node n = nodeList.item(i); String result = n.getFirstChild().getNodeValue(); String[] address = result.split(","); String pName = address[0]; String pCode = address[1]; if(pName.equalsIgnoreCase(provinceName)){ provinceCode = Integer.parseInt(pCode); }  } inputStream.close(); }catch(DOMException e){ e.printStackTrace(); }catch(ParserConfigurationException e){ e.printStackTrace(); }catch (SAXException e){ e.printStackTrace(); }catch(IOException e){ e.printStackTrace(); } return provinceCode;     }          public static int getCityCode(int provinceCode, String cityName){         Document doc;         DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();         dbf.setNamespaceAware(true);         int cityCode = 0;         try{ DocumentBuilder db = dbf.newDocumentBuilder(); InputStream is = getSoapInputStream(CITY_CODE_URL + provinceCode);    //具体webService相关 doc = db.parse(is); NodeList nl = doc.getElementsByTagName("string");    //具体webService相关 int len = nl.getLength(); for(int i = 0; i < len; i++){ Node n = nl.item(i); String result = n.getFirstChild().getNodeValue(); String[] address = result.split(","); String cName = address[0]; String cCode = address[1]; if(cName.equalsIgnoreCase(cityName)){ cityCode = Integer.parseInt(cCode); } } is.close(); }catch(DOMException e){ e.printStackTrace(); }catch(ParserConfigurationException e){ e.printStackTrace(); }catch (SAXException e){ e.printStackTrace(); }catch(IOException e) { e.printStackTrace(); } return cityCode;     }          public static InputStream getSoapInputStream(String url){         InputStream inputStream = null;         try{ URL urlObj = new URL(url); URLConnection urlConn = urlObj.openConnection(); urlConn.setRequestProperty("Host", SERVICES_HOST);    //具体webService相关 urlConn.connect(); inputStream = urlConn.getInputStream(); }catch(MalformedURLException e){ e.printStackTrace(); }catch(IOException e){ e.printStackTrace(); }         return inputStream;     }          public static List<String> getWeather(int cityCode){         List<String> weatherList = new ArrayList<String>();         Document document;         DocumentBuilderFactory documentBF = DocumentBuilderFactory.newInstance();         documentBF.setNamespaceAware(true);         try{ DocumentBuilder documentB = documentBF.newDocumentBuilder(); InputStream inputStream = getSoapInputStream(WEATHER_QUERY_URL + cityCode); document = documentB.parse(inputStream); NodeList nl = document.getElementsByTagName("string"); int len = nl.getLength(); for(int i = 0; i < len; i++){    Node n = nl.item(i);    String weather = n.getFirstChild().getNodeValue();    weatherList.add(weather); } inputStream.close(); }catch(UnsupportedEncodingException e){ e.printStackTrace(); }catch (DOMException e){ e.printStackTrace(); }catch (ParserConfigurationException e){ e.printStackTrace(); }catch(SAXException e){ e.printStackTrace(); } catch (IOException e){ e.printStackTrace(); }         return weatherList;     }      }