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("dailifuwuqiIP", duankou);//此处为代理服务器地址，端口
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("XXX.XX.XX.XX", XXXX);//此处为代理服务器,和端口
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