天气预报的链接方式

/**
 *
 */
package com.fw.util;

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 {
// http://www.ayandy.com
    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("辽宁");    //3119  
        int cityCode = getCityCode(provinceCode, "大连");    //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;  
}
}

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原文链接：天气预报的链接方式，转载请注明来源！