java调用WebService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("山东");    //3119
    int cityCode = getCityCode(provinceCode, "菏泽");    //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;
    }
    
}