Dodatkowy przykład SAAJ (weather)

SAAJ_Klient/src/main/java/saaj_klient/stare/GetWeather.java

+package saaj_klient.stare;
+
+import java.io.IOException;
+import java.io.StringReader;
+
+import javax.xml.namespace.QName;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import jakarta.xml.soap.MessageFactory;
+import jakarta.xml.soap.SOAPBody;
+import jakarta.xml.soap.SOAPConnection;
+import jakarta.xml.soap.SOAPConnectionFactory;
+import jakarta.xml.soap.SOAPElement;
+import jakarta.xml.soap.SOAPException;
+import jakarta.xml.soap.SOAPFault;
+import jakarta.xml.soap.SOAPMessage;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+
+public class GetWeather {
+	public static final String WEBSERVICEX_NS = "http://www.webserviceX.NET";
+
+	private static void prepareRequest(SOAPMessage req) throws SOAPException {
+		final SOAPBody body = req.getSOAPBody();
+		final SOAPElement get_weather = body.addChildElement(new QName(WEBSERVICEX_NS, "GetWeather"));
+		final SOAPElement city = get_weather.addChildElement(new QName(WEBSERVICEX_NS, "cityName"));
+		final SOAPElement country = get_weather.addChildElement(new QName(WEBSERVICEX_NS, "CountryName"));
+		
+		city.setTextContent("Warszawa");
+		country.setTextContent("Poland");
+
+		// Niektóre serwisy wymagają ustawienia ngłówka HTTP SOAPAction.
+		// Implementacje realizowane w .NET tak właśnie mają. Jest to opisane w WSDL w części binding
+		req.getMimeHeaders().setHeader("SOAPAction", "http://www.webserviceX.NET/GetWeather");
+	}
+	
+	private static void processResponse(SOAPMessage resp) throws SOAPException, ParserConfigurationException, SAXException, IOException {
+		SOAPBody body = resp.getSOAPBody();
+		NodeList lista = body.getElementsByTagNameNS(WEBSERVICEX_NS, "GetWeatherResult");
+		if(lista.getLength() == 0) {
+			System.out.println("Brak elementu GetWeatherResult");
+			return;
+		}
+		Node weather_result = lista.item(0);
+		String zagniezdzony_xml = weather_result.getTextContent();
+		System.out.println("\n======\nZagniezdzony XML:");
+		System.out.println(zagniezdzony_xml);
+		
+		DocumentBuilderFactory bf = DocumentBuilderFactory.newInstance();
+		DocumentBuilder builder = bf.newDocumentBuilder();
+		Document doc = builder.parse(new InputSource(new StringReader(zagniezdzony_xml)));
+		
+		lista = doc.getElementsByTagName("Temperature");
+		if(lista.getLength() == 0) {
+			System.out.println("Brak elementu Temperature");
+			return;
+		}
+		Node temp = lista.item(0);
+		System.out.println("Temperatura: "+temp.getTextContent());
+	}
+
+	private static void processFault(SOAPFault fault) {
+		System.out.println("Blad:");
+		System.out.println(fault.getFaultString());
+	}
+
+	public static void main(String[] args) {
+		try {
+			System.out.println("Zapytanie:");
+			MessageFactory mf = MessageFactory.newInstance();
+			SOAPMessage req = mf.createMessage();
+			
+			prepareRequest(req);
+			req.writeTo(System.out);
+			System.out.println("\n=====================\n\nOdpowiedz:");
+			
+			SOAPConnectionFactory cf = SOAPConnectionFactory.newInstance();
+			SOAPConnection con = cf.createConnection();
+			SOAPMessage resp = con.call(req, "http://www.webservicex.net/globalweather.asmx");
+			resp.writeTo(System.out);
+			System.out.println();
+			
+			if(resp.getSOAPBody().hasFault()) {
+				processFault(resp.getSOAPBody().getFault());
+			} else {
+				processResponse(resp);
+			}
+			
+		} catch (SOAPException e) {
+			e.printStackTrace();
+		} catch (IOException e) {
+			e.printStackTrace();
+		} catch (ParserConfigurationException e) {
+			e.printStackTrace();
+		} catch (SAXException e) {
+			e.printStackTrace();
+		}
+	}
+}