Example
public String getCitiesByCountry(String countryName) throws MalformedURLException, IOException {
//Code to make a webservice HTTP request
String responseString = "";
String outputString = "";
String wsURL = "http://www.webservicex.com/globalweather.asmx";// Endpoint of the webservice to be consumed
URL url = new URL(wsURL);
URLConnection connection = url.openConnection();
HttpURLConnection httpConn = (HttpURLConnection)connection;
ByteArrayOutputStream bout = new ByteArrayOutputStream();
String xmlInput =
"<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">
<soap:Body>
<GetCitiesByCountry xmlns=\"http://www.webserviceX.NET\">
<CountryName>" + countryName + "</CountryName>
</GetCitiesByCountry>
</soap:Body>
</soap:Envelope>"; //entire SOAP Request
byte[] buffer = new byte[xmlInput.length()];
buffer = xmlInput.getBytes();
bout.write(buffer);
byte[] b = bout.toByteArray();
String SOAPAction = "http://www.webserviceX.NET/GetCitiesByCountry"; // SOAP action of the webservice to be consumed
// Set the appropriate HTTP parameters.
httpConn.setRequestProperty("Content-Length",
String.valueOf(b.length));
httpConn.setRequestProperty("Content-Type", "text/xml; charset=utf-8");
httpConn.setRequestProperty("SOAPAction", SOAPAction);
httpConn.setRequestMethod("POST");
httpConn.setDoOutput(true);
httpConn.setDoInput(true);
OutputStream out = httpConn.getOutputStream();
//Write the content of the request to the outputstream of the HTTP Connection.
out.write(b);
out.close();
//Ready with sending the request.
//Read the response.
InputStreamReader isr = null;
if (httpConn.getResponseCode() == 200) {
isr = new InputStreamReader(httpConn.getInputStream());
} else {
isr = new InputStreamReader(httpConn.getErrorStream());
}
BufferedReader in = new BufferedReader(isr);
//Write the SOAP message response to a String.
while ((responseString = in.readLine()) != null) {
outputString = outputString + responseString;
}
//Parse the String output to a org.w3c.dom.Document and be able to reach every node with the org.w3c.dom API.
Document document = parseXmlFile(outputString);
NodeList nodeLst = document.getElementsByTagName("GetCitiesByCountryResult"); // TagName of the element to be retrieved
String elementValue = nodeLst.item(0).getTextContent();
System.out.println(elementValue);
return elementValue;
}
public Document parseXmlFile(String in) {
try {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource(new StringReader(in));
return db.parse(is);
} catch (ParserConfigurationException e) {
throw new RuntimeException(e);
} catch (SAXException e) {
throw new RuntimeException(e);
} catch (IOException e) {
throw new RuntimeException(e);
}
}