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Posted to java-user@axis.apache.org by Daniel Keltner <da...@yahoo.com> on 2002/04/19 02:13:13 UTC
Help: java.lang.reflect.InvocationTargetException
hi all,
I am running Axis beta 1 under Tomcat 4 on a Linux
Box.
I have a simple java application that has a method
called getResults that takes a String ("cityName"),
uses a SAXParser to parse an xml file, searches for
the element with that city name, and returns a string
with the contents for that city.
This code works fine when I run it from the command
line, but when I tried to place it under Axis and
access it as a web service, it gave me the following
stackTrace:
Exception in thread "main"
java.lang.reflect.InvocationTargetException
at
org.apache.axis.message.SOAPFaultBuilder.endElement(Unknown
Source)
at
org.apache.axis.encoding.DeserializationContextImpl.endElement(Unknown
Source)
at
org.apache.xerces.parsers.SAXParser.endElement(SAXParser.java:1403)
at
org.apache.xerces.validators.common.XMLValidator.callEndElement(XMLValidator.java:1550)
at
org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XMLDocumentScanner.java:1204)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.java:381)
at
org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1098)
at
javax.xml.parsers.SAXParser.parse(SAXParser.java:393)
at
org.apache.axis.encoding.DeserializationContextImpl.parse(Unknown
Source)
at
org.apache.axis.SOAPPart.getAsSOAPEnvelope(Unknown
Source)
at org.apache.axis.client.Call.invoke(Unknown
Source)
at org.apache.axis.client.Call.invoke(Unknown
Source)
at org.apache.axis.client.Call.invoke(Unknown
Source)
at org.apache.axis.client.Call.invoke(Unknown
Source)
at WTClient.main(WTClient.java:40)
My code for the web service (the .jws file) is as
follows:
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.Attributes;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.XMLReaderFactory;
import org.apache.xerces.parsers.SAXParser;
class WeatherParser {
private String cityName = "Tucson";
private String output = "";
String results;
StringBuffer buffer = new StringBuffer();
public void setCityName (String n) {
this.cityName = n;
}
public String getCityName () {
return this.cityName;
}
public void setOutput (String n) {
this.output = n;
}
public static void main(String[] args) {
new WeatherParser(args);
}
WeatherParser (String [] args) {
if (args.length > 0) {
setCityName(args[0]);
}
output = getResults("");
System.out.println (output);
}
public String getResults (String fileName) {
try {
XMLReader parser = new SAXParser();
parser.setContentHandler(new CH());
parser.parse("weather.xml");
}
catch(Exception e) {
System.out.println(e);
}
results = buffer.toString();
return results;
}
class CH extends DefaultHandler {
boolean cityNameElementFlag = false;
boolean currentWeatherFlag = false;
boolean weekdayFlag = false;
boolean monthFlag = false;
boolean dayOfMonthFlag = false;
boolean precipitationFlag = false;
boolean conditionsFlag = false;
boolean highFlag = false;
boolean lowFlag = false;
boolean forecastFlag = false;
boolean cityFoundFlag = false;
String name = cityName.toUpperCase();
String weekday;
String month;
String dayOfMonth;
public void startDocument() throws SAXException {
//System.out.println("cityName = "+name);
}
public void endDocument() throws SAXException {}
public void startElement(String nameSpaceURI, String
localName, String rawName, Attributes atts)
throws SAXException {
if (localName.equals("CITY_NAME")) {
cityNameElementFlag = true;
//System.out.println("Found a CITY_NAME tag");
} else if ( localName.equals("CURRENT_WEATHER") )
{
if (cityFoundFlag) {
buffer.append(" Latest weather for ");
}
currentWeatherFlag = true;
} else if ( localName.equals("WEEKDAY") ) {
weekdayFlag = true;
} else if ( localName.equals("MONTH") ) {
monthFlag = true;
} else if ( localName.equals("DAYOFMONTH") ) {
dayOfMonthFlag = true;
} else if ( localName.equals("PRECIPITATION") ) {
precipitationFlag = true;
} else if ( localName.equals("HIGH") ) {
highFlag = true;
} else if ( localName.equals("LOW") ) {
lowFlag = true;
} else if ( localName.equals("CONDITIONS") ) {
conditionsFlag = true;
} else if ( localName.equals("FORECAST") ) {
if (cityFoundFlag) {
buffer.append(" Forecasted weather for ");
}
forecastFlag = true;
}
}
public void endElement(String nameSpaceURI, String
localName, String rawName)
throws SAXException {
if ( localName.equals("CITY_NAME") ) {
cityNameElementFlag = false;
} else if ( localName.equals("CITY") ) {
cityFoundFlag = false;
} else if ( localName.equals("CURRENT_WEATHER") )
{
currentWeatherFlag = false;
} else if ( localName.equals("WEEKDAY") ) {
if (cityFoundFlag) {
buffer.append(weekday + " ");
}
weekdayFlag = false;
} else if ( localName.equals("MONTH") ) {
if (cityFoundFlag) {
buffer.append(month + ", ");
}
monthFlag = false;
} else if ( localName.equals("DAYOFMONTH") ) {
if (cityFoundFlag) {
buffer.append(dayOfMonth + "\n");
}
dayOfMonthFlag = false;
} else if ( localName.equals("PRECIPITATION") ) {
precipitationFlag = false;
} else if ( localName.equals("HIGH") ) {
highFlag = false;
} else if ( localName.equals("LOW") ) {
lowFlag = false;
} else if ( localName.equals("CONDITIONS") ) {
conditionsFlag = false;
} else if ( localName.equals("FORECAST") ) {
forecastFlag = false;
}
}
public void characters(char[] ch, int start, int
length) throws SAXException {
String text = new String(ch,start,length);
if (cityNameElementFlag) {
//System.out.println("City name = "+text);
if (text.indexOf(name) > -1) {
cityFoundFlag = true;
//System.out.println("Found city:"+name);
buffer.append("Weather for the city of
"+text+"\n");
}
} else if (weekdayFlag) {
weekday = text;
} else if (monthFlag) {
month = text;
} else if (dayOfMonthFlag) {
dayOfMonth = text;
}
if (cityFoundFlag) {
if (precipitationFlag) {
buffer.append(" - precipitation: "+text+" (last
24 hours)\n");
} else if (highFlag) {
buffer.append(" - high: "+text+"F\n");
} else if (lowFlag) {
buffer.append(" - low: "+text+"F\n");
} else if (conditionsFlag) {
buffer.append(" - conditions: "+text+"\n");
}
}
}
}
}
Anyone have any ideas why it won't run as a web
service?
Thanks for any help.
__________________________________________________
Do You Yahoo!?
Yahoo! Tax Center - online filing with TurboTax
http://taxes.yahoo.com/
Re: Help: java.lang.reflect.InvocationTargetException
Posted by Andrew Vardeman <an...@iastate.edu>.
Daniel,
I don't know much--just got my first dummy application working
yesterday--but when I have gotten InvocationTargetException, it's because
either I'm pointing to the wrong URL in the client or the web service isn't
deployed right. I'm just guessing from the scant Axis coverage in this web
services book I bought, but does your service need to be deployed as
classes with a .wsdd document, since it's doing stuff with
handlers? That's all I've got--
Andrew
At 05:13 PM 4/18/2002 -0700, you wrote:
>hi all,
>
>I am running Axis beta 1 under Tomcat 4 on a Linux
>Box.
>
>I have a simple java application that has a method
>called getResults that takes a String ("cityName"),
>uses a SAXParser to parse an xml file, searches for
>the element with that city name, and returns a string
>with the contents for that city.
>
>This code works fine when I run it from the command
>line, but when I tried to place it under Axis and
>access it as a web service, it gave me the following
>stackTrace:
>
>Exception in thread "main"
>java.lang.reflect.InvocationTargetException
> at
>org.apache.axis.message.SOAPFaultBuilder.endElement(Unknown
>Source)
> at
>org.apache.axis.encoding.DeserializationContextImpl.endElement(Unknown
>Source)
> at
>org.apache.xerces.parsers.SAXParser.endElement(SAXParser.java:1403)
> at
>org.apache.xerces.validators.common.XMLValidator.callEndElement(XMLValidator.java:1550)
> at
>org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XMLDocumentScanner.java:1204)
> at
>org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.java:381)
> at
>org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1098)
> at
>javax.xml.parsers.SAXParser.parse(SAXParser.java:393)
> at
>org.apache.axis.encoding.DeserializationContextImpl.parse(Unknown
>Source)
> at
>org.apache.axis.SOAPPart.getAsSOAPEnvelope(Unknown
>Source)
> at org.apache.axis.client.Call.invoke(Unknown
>Source)
> at org.apache.axis.client.Call.invoke(Unknown
>Source)
> at org.apache.axis.client.Call.invoke(Unknown
>Source)
> at org.apache.axis.client.Call.invoke(Unknown
>Source)
> at WTClient.main(WTClient.java:40)
>
>My code for the web service (the .jws file) is as
>follows:
>
>import org.xml.sax.helpers.DefaultHandler;
>import org.xml.sax.ContentHandler;
>import org.xml.sax.SAXException;
>import org.xml.sax.SAXParseException;
>import org.xml.sax.Attributes;
>import org.xml.sax.XMLReader;
>import org.xml.sax.helpers.XMLReaderFactory;
>import org.apache.xerces.parsers.SAXParser;
>
>
>
>class WeatherParser {
>
> private String cityName = "Tucson";
> private String output = "";
> String results;
> StringBuffer buffer = new StringBuffer();
>
> public void setCityName (String n) {
> this.cityName = n;
> }
>
> public String getCityName () {
> return this.cityName;
> }
>
> public void setOutput (String n) {
> this.output = n;
> }
>
> public static void main(String[] args) {
> new WeatherParser(args);
> }
>
> WeatherParser (String [] args) {
> if (args.length > 0) {
> setCityName(args[0]);
> }
> output = getResults("");
> System.out.println (output);
> }
>
> public String getResults (String fileName) {
>
> try {
> XMLReader parser = new SAXParser();
> parser.setContentHandler(new CH());
> parser.parse("weather.xml");
> }
>
> catch(Exception e) {
> System.out.println(e);
> }
> results = buffer.toString();
> return results;
> }
>
> class CH extends DefaultHandler {
>
> boolean cityNameElementFlag = false;
> boolean currentWeatherFlag = false;
> boolean weekdayFlag = false;
> boolean monthFlag = false;
> boolean dayOfMonthFlag = false;
> boolean precipitationFlag = false;
> boolean conditionsFlag = false;
> boolean highFlag = false;
> boolean lowFlag = false;
> boolean forecastFlag = false;
> boolean cityFoundFlag = false;
> String name = cityName.toUpperCase();
> String weekday;
> String month;
> String dayOfMonth;
>
> public void startDocument() throws SAXException {
> //System.out.println("cityName = "+name);
> }
>
> public void endDocument() throws SAXException {}
>
> public void startElement(String nameSpaceURI, String
>localName, String rawName, Attributes atts)
> throws SAXException {
> if (localName.equals("CITY_NAME")) {
> cityNameElementFlag = true;
> //System.out.println("Found a
> CITY_NAME tag");
> } else if (
> localName.equals("CURRENT_WEATHER") )
>{
> if (cityFoundFlag) {
> buffer.append(" Latest
> weather for ");
> }
> currentWeatherFlag =
> true;
> } else if ( localName.equals("WEEKDAY") ) {
> weekdayFlag = true;
> } else if ( localName.equals("MONTH") ) {
> monthFlag = true;
> } else if (
> localName.equals("DAYOFMONTH") ) {
> dayOfMonthFlag = true;
> } else if (
> localName.equals("PRECIPITATION") ) {
> precipitationFlag = true;
> } else if ( localName.equals("HIGH") ) {
> highFlag = true;
> } else if ( localName.equals("LOW") ) {
> lowFlag = true;
> } else if (
> localName.equals("CONDITIONS") ) {
> conditionsFlag = true;
> } else if ( localName.equals("FORECAST") ) {
> if (cityFoundFlag) {
> buffer.append("
> Forecasted weather for ");
> }
> forecastFlag = true;
> }
> }
>
> public void endElement(String nameSpaceURI, String
>localName, String rawName)
> throws SAXException {
> if ( localName.equals("CITY_NAME") ) {
> cityNameElementFlag = false;
> } else if ( localName.equals("CITY") ) {
> cityFoundFlag = false;
> } else if (
> localName.equals("CURRENT_WEATHER") )
>{
> currentWeatherFlag = false;
> } else if ( localName.equals("WEEKDAY") ) {
> if (cityFoundFlag) {
> buffer.append(weekday + " ");
> }
> weekdayFlag = false;
> } else if ( localName.equals("MONTH") ) {
> if (cityFoundFlag) {
> buffer.append(month + ", ");
> }
> monthFlag = false;
> } else if (
> localName.equals("DAYOFMONTH") ) {
> if (cityFoundFlag) {
> buffer.append(dayOfMonth
> + "\n");
> }
> dayOfMonthFlag = false;
> } else if (
> localName.equals("PRECIPITATION") ) {
> precipitationFlag = false;
> } else if ( localName.equals("HIGH") ) {
> highFlag = false;
> } else if ( localName.equals("LOW") ) {
> lowFlag = false;
> } else if (
> localName.equals("CONDITIONS") ) {
> conditionsFlag = false;
> } else if ( localName.equals("FORECAST") ) {
> forecastFlag = false;
> }
>
> }
>
> public void characters(char[] ch, int start, int
>length) throws SAXException {
> String text = new String(ch,start,length);
>
> if (cityNameElementFlag) {
> //System.out.println("City name = "+text);
> if (text.indexOf(name) > -1) {
> cityFoundFlag = true;
> //System.out.println("Found
> city:"+name);
> buffer.append("Weather for the
> city of
>"+text+"\n");
> }
> } else if (weekdayFlag) {
> weekday = text;
> } else if (monthFlag) {
> month = text;
> } else if (dayOfMonthFlag) {
> dayOfMonth = text;
> }
>
> if (cityFoundFlag) {
> if (precipitationFlag) {
> buffer.append(" - precipitation:
> "+text+" (last
>24 hours)\n");
> } else if (highFlag) {
> buffer.append(" - high:
> "+text+"F\n");
> } else if (lowFlag) {
> buffer.append(" - low:
> "+text+"F\n");
> } else if (conditionsFlag) {
> buffer.append(" - conditions:
> "+text+"\n");
> }
> }
> }
> }
>}
>
>Anyone have any ideas why it won't run as a web
>service?
>
>Thanks for any help.
>
>__________________________________________________
>Do You Yahoo!?
>Yahoo! Tax Center - online filing with TurboTax
>http://taxes.yahoo.com/