[jadeite1000]

Hi All:

I am using Tomcat 5.5, Axis 1.4, and myEclipse 5.5.
I am new to java web services and Axis.
I am trying an example from the book “Beginning Java Web Services” by
Henry Bequet. This is the Stock Quote example on Chapter 3 page
113.

When I tried the following
url:http://localhost:8080/axis/

It gives me a list of web services deployed.
There is a link:
List -View the list of deployed Web Services

Here is the source code for StockCore.java:

package com.wrox.jws.stockcore;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Attr;
import org.w3c.dom.NodeList;
import org.apache.xerces.parsers.DOMParser;
import org.xml.sax.InputSource;

public class StockCore
{
private static final String STOCK_FILE = “stock_quote.xml”;

private Document doc;
public Document getDocument() { return doc; }

public StockCore() throws Exception
{
InputSource in = new InputSource(
getClass().getClassLoader().getResourceAsStream(STOCK_FILE));

DOMParser domParser = new DOMParser();
domParser.parse(in);
doc = domParser.getDocument();
System.out.println(“New”);
}
public static void main(String args[]) throws Exception
{
if(args.length != 1)
{
System.out.println(“Usage: java dom.StockCore <symbol>”);
System.exit(0);
}

StockCore stockCore = new StockCore();
System.out.println(“The ask price for ” + args[0] + ” is ” +
stockCore.getQuote(args[0]));

}

public String getQuote(String symbol) throws Exception
{

Element root = doc.getDocumentElement();
NodeList stockList = root.getElementsByTagName(“stock_quote”);

for(int i = 0;i < stockList.getLength();i++)
{
Element stockQuoteEl = (Element)stockList.item(i);
Element symbolEl =
(Element)stockQuoteEl.getElementsByTagName(“symbol”).item(0);
if(!symbolEl.getFirstChild().getNodeValue().equals(symbol))
continue;

NodeList priceList = stockQuoteEl.getElementsByTagName(“price”);

for(int j = 0;j < priceList.getLength(); j++)
{
Element priceEl = (Element)priceList.item(0);
if(priceEl.getAttribute(“type”).equals(“ask”))
return priceEl.getAttribute(“value”);
}

}

return””;

}

Here is the client code that calls the method getQuote in the StockCore.java
class. I passed the parameter “IBM” to the StockQuote class below:

package com.wrox.jws.stockquote;

import org.apache.axis.client.Call;
import org.apache.axis.client.Service;
import org.apache.axis.encoding.XMLType;
import org.apache.axis.utils.Options;

import javax.xml.rpc.ParameterMode;
import javax.xml.namespace.QName;

import com.wrox.jws.stockcore.StockCore;

public class StockQuote {

public String getQuote(String ticker) throws Exception {
StockCore stockcore = new StockCore();
return stockcore.getQuote(ticker);
}

public static void main(String [] args) {
final String methodName = “StockQuote.main”;

try {
if(args.length != 1) {
System.err.println(“StockQuote Client”);
System.err.println(
“Usage: java com.wrox.jws.stockquote.StockQuote” +
” <ticker-symbol>”);
System.err.println(
“Example: java com.wrox.jws.stockquote.StockQuote sunw”);
System.exit(1);
}

// Replace the following URL with what is suitable for
// your environment http://localhost:8080/axis/servlet/AxisServlet
String endpointURL = “http://localhost:8080/axis/servlet/AxisServlet&#8221;;
Service service = new Service();
Call call = (Call)service.createCall();

call.setTargetEndpointAddress(new java.net.URL(endpointURL));
call.setOperationName(new QName(“StockQuote”, “getQuote”));
call.addParameter(“ticker”, XMLType.XSD_STRING, ParameterMode.IN);
call.setReturnType(org.apache.axis.encoding.XMLType.XSD_STRING);

String ret = (String)call.invoke(new Object[] { args[0] });

System.out.println(“The value of ” + args[0]
+ ” is: ” + ret);

} catch (Exception exception) {
System.err.println(methodName + “: ” + exception.toString());
exception.printStackTrace();
}
}
}

Before I ran the client code that calls the web service. I needed to tell Axis that
StockQuote is a valid web service. This is done with the help of a deployment
descriptor and the Axis AdminClient(make sure that Tomcat is running before launching these commands).

Here is the value of the StockQuote.wsdd:

<deployment xmlns=”http://xml.apache.org/axis/wsdd/&#8221;
xmlns:java=”http://xml.apache.org/axis/wsdd/providers/java”&gt;
<service name=”StockQuote” provider=”java:RPC”>
<parameter name=”className” value=”com.wrox.jws.stockquote.StockQuote”/>
<parameter name=”allowedMethods” value=”getQuote”/>
</service>
</deployment>

Here is the command I ran:
C:\Beginning_JWS_Examples\Chp03\StockQuote\src>java org.apache.axis.client.AdminClient ..\StockQuote.wsdd
Processing file ..\StockQuote.wsdd
<Admin>Done processing</Admin>

Here is the error message I get when I called the client code StockQuote.java :
StockQuote.main: java.lang.reflect.InvocationTargetException
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
faultSubcode:
faultString: java.lang.reflect.InvocationTargetException
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}hostname:albertlam

java.lang.reflect.InvocationTargetException
at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:222)
at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:129)
at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087)
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at org.apache.xerces.jaxp.SAXParserImpl.parse(Unknown Source)
at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)
at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
at org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)
at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)
at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
at org.apache.axis.client.Call.invoke(Call.java:2767)
at org.apache.axis.client.Call.invoke(Call.java:2443)
at org.apache.axis.client.Call.invoke(Call.java:2366)
at org.apache.axis.client.Call.invoke(Call.java:1812)
at com.wrox.jws.stockquote.StockQuote.main(StockQuote.java:45)

Any hint would be greatly appreciated.

Yours,

Frustrated.

[Loyal Water]

MyEclipse’s web service support is based entirely around the XFire framework. But if you already have your project setup, and it can fit into an existing Web Service or WEb Project, deploying that to Tomcat will be exactly as outlined in our “Working with Webprojects” help doc.

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