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;

}

}