private Weather() {
}
/**
* @param cityName
* @return
*/
private static InputStream getSoapInputStream(String cityName) {
try {
/*
* URL url = new URL(_url + cityName); HttpURLConnection hc =
* (HttpURLConnection) url.openConnection(); hc.connect();
* InputStream urlStream = hc.getInputStream(); return urlStream;
*/
return new URL(_url + cityName).openStream();
} catch (Exception ex) {
return null;
}
}
/**
* 用W3C DOM對返回的XML進行解釋
* @param cityName
* @return
*/
public static String getWeatherByCityName(String cityName) {
try {
Document doc;
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
DocumentBuilder db = dbf.newDocumentBuilder();
InputStream is = getSoapInputStream(cityName);
if (is == null){
return null;
}
doc = db.parse(is);
NodeList nl = doc.getElementsByTagName("string");
Node n = nl.item(0);
String weather = n.getFirstChild().getNodeValue();
is.close();
return weather;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
/**
* @param args
*/
public static void main(String[] args) {
System.out.print(getWeatherByCityName("北京"));
}
}
得到一個String對象，剩下的就很好處理了。
最終實現效果：
