学习Webservice之入天气小试

主要方法是：通过程序中设置代理用公司内网访问外部Webservice

public InputStream getSoapInputStream(String url) {

InputStream inputStream = null;

try {

URL urlObj = new URL(url);

InetSocketAddress addr = new InetSocketAddress("172.17.18.80", 8080);

Proxy proxy = new Proxy(Proxy.Type.HTTP, addr);

HttpURLConnection urlConn = (HttpURLConnection) urlObj

.openConnection(proxy);

urlConn.setRequestProperty("Host", SERVICES_HOST); // 具体webService相关

urlConn.setRequestMethod("GET");

urlConn.connect();

inputStream = urlConn.getInputStream();

} catch (MalformedURLException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

return inputStream;

}

类文件：

Weather.java

package weather;
import java.io.IOException;

import java.io.InputStream;

import java.io.UnsupportedEncodingException;

import java.net.HttpURLConnection;

import java.net.InetSocketAddress;

import java.net.MalformedURLException;

import java.net.Proxy;

import java.net.URL;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Calendar;

import java.util.Date;

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 weather {

// private static String SERVICES_HOST = "www.webxml.com.cn";

private static String SERVICES_HOST = "webservice.webxml.com.cn";
/**

* 城市代码 / 浦东: 2015

*/

private static int CITICODE = 2015;
public static void main(String[] args) throws Exception {

String time=null;

Calendar cal=Calendar.getInstance();

SimpleDateFormat format= new SimpleDateFormat("yyyy-MM-dd");//MM要大写

time=format.format(cal.getTime());
String desc = "今天是" + time+"，浦东";

desc += new weather().getWeatherStr();

System.out.println(desc);

}
/**

* Sos,MMyTest

* */

public InputStream getSoapInputStream(String url) {

InputStream inputStream = null;

try {

URL urlObj = new URL(url);

InetSocketAddress addr = new InetSocketAddress("172.17.18.80", 8080);

Proxy proxy = new Proxy(Proxy.Type.HTTP, addr);

HttpURLConnection urlConn = (HttpURLConnection) urlObj

.openConnection(proxy);

urlConn.setRequestProperty("Host", SERVICES_HOST); // 具体webService相关

urlConn.setRequestMethod("GET");

urlConn.connect();

inputStream = urlConn.getInputStream();

} catch (MalformedURLException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

return inputStream;

}
public String getWeatherStr() {

String desc = "";

try {

List<String> weatherList = getWeather(CITICODE);
if (weatherList != null && weatherList.size() > 7) {

String tianqi = weatherList.get(7);

if (tianqi.contains("日")) {

tianqi = tianqi.substring(tianqi.indexOf("日") + 1);

}

String wendu = weatherList.get(8);

desc += ",天气" + tianqi;

desc += " ,";

desc += wendu.replace("℃", "度").replace("/", "--");

}

} catch (Exception e) {

e.printStackTrace();

return desc;

}

return desc;

}
public 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("http://webservice.webxml.com.cn/WebServices/WeatherWS.asmx/getWeather?theUserID=&theCityCode=2015");

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;

}

}

运行weather.java文件后打印出：

今天是2014-04-30，浦东,天气 晴转多云 ,14度--24度

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