WSDL Sample

Before porting the web service module into a J2EE application, firstly lets look at how I get a stock quote in a normal Java concole.

As I will continue on application of WSDL on my next post ... .

Below is the full generic code to demostrate on calling a WSDL:

// // XMethods sample client for the Stock Quote service // import java.io.*; import java.net.*; import java.util.*; import org.apache.soap.util.xml.*; import org.apache.soap.*; import org.apache.soap.rpc.*; public class StockQuoteClient{ public static float getQuote (URL url, String symbol) throws Exception { Call call = new Call (); // Service uses standard SOAP encoding String encodingStyleURI = Constants.NS_URI_SOAP_ENC; call.setEncodingStyleURI(encodingStyleURI); // Set service locator parameters call.setTargetObjectURI ("urn:xmethods-delayed-quotes"); call.setMethodName ("getQuote"); // Create input parameter vector Vector params = new Vector (); params.addElement (new Parameter("symbol", String.class, symbol, null)); call.setParams (params); // Invoke the service .... Response resp = call.invoke (url,""); // ... and evaluate the response if (resp.generatedFault ()) { throw new Exception(); } else { // Call was successful. Extract response parameter and return result Parameter result = resp.getReturnValue (); Float rate=(Float) result.getValue(); return rate.floatValue(); } } // Driver to illustrate service invocation public static void main(String[] args) { try { URL url=new URL("http://services.xmethods.net:80/soap"); String symbol= args[0]; float quote = getQuote(url,symbol); System.out.println(quote); } catch (Exception e) {e.printStackTrace();} } }