Using web logic 6.1 web service

Question

hello.
I'm testing web services in weblogic 6.1
I have created a web service and client. they exchange messages well.
their request and Response messages are like below
request Message------------------------------------------------------------------------------------
POST /weather/weatheruri HTTP/1.1
Content-length: 483
<?xml version='1.0' encoding='UTF-8'?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV='http://schemas.xmlsoap.org/soap/envelope/'
xmlns:SOAP-ENC='http://schemas.xmlsoap.org/soap/encoding/' xmlns:xsi='http://www.w3.org/1999/XMLSchema-instance'
xmlns:xsd='http://www.w3.org/1999/XMLSchema'><SOAP-ENV:Body><ns0:getTemp xmlns:ns0='urn:Weather'
SOAP-ENV:encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'>
<arg0 xsi:type='xsd:string'>SomeString</arg0>
</ns0:getTemp>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
Response Message-------------------------------------------------------------------------------------
HTTP/1.1 200 OK
Date: Mon, 08 Sep 2003 02:08:02 GMT
Server: WebLogic WebLogic Server 6.1 SP2 12/18/2001 11:13:46 #154529
Content-Type: text/xml; charset=UTF-8
Transfer-Encoding: Chunked
Connection: Close
0291
<?xml version='1.0' encoding='UTF-8'?><SOAP-ENV:Envelope xmlns:SOAP-ENV='http://schemas.xmlsoap.org/soap/envelope/'
xmlns:SOAP-ENC='http://schemas.xmlsoap.org/soap/encoding/' xmlns:xsi='http://www.w3.org/1999/XMLSchema-instance'
xmlns:xsd='http://www.w3.org/1999/XMLSchema'>
<SOAP-ENV:Body>
<ns0:getTempResponse xmlns:ns0='urn:local' SOAP-ENV:encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'>
<return xsi:type='bean:weatherResult' xmlns:bean='java:examples.webservices.rpc.weather'
>
<temperature xsi:type='xsd:float'>-273.15</temperature>
<zipcode xsi:type='xsd:string'>SomeString</zipcode>
</return>
</ns0:getTempResponse>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
0000
they seems to work fine.
but i'm getting error to decode response message on client side.
C:\... >java Client
java.lang.reflect.UndeclaredThrowableException: java.lang.InstantiationException
: examples.webservices.rpc.weather.weatherResult
at weblogic.soap.codec.SimpleSoapEncodingCodec.newInstance(SimpleSoapEnc
odingCodec.java:198)
at weblogic.soap.codec.SimpleSoapEncodingCodec.decode(SimpleSoapEncoding
Codec.java:178)
at weblogic.soap.codec.SimpleSoapEncodingCodec.decode(SimpleSoapEncoding
Codec.java:151)
at weblogic.soap.codec.CodecFactory.decode(CodecFactory.java:96)
at weblogic.soap.codec.Operation.read(Operation.java:100)
at weblogic.soap.codec.SoapMessage.readOperation(SoapMessage.java:200)
at weblogic.soap.codec.SoapMessage.read(SoapMessage.java:130)
at weblogic.soap.WebServiceProxy.receive(WebServiceProxy.java:464)
at weblogic.soap.WebServiceProxy.invoke(WebServiceProxy.java:430)
at weblogic.soap.SoapMethod.invoke(SoapMethod.java:186)
at weblogic.soap.wsdl.WebServiceInvocationHandler.invoke(WebServiceInvoc
ationHandler.java:31)
at $Proxy0.getTemp(Unknown Source)
at Client.main(Client.java:18)
Exception in thread "main" java.lang.NullPointerException
at Client.main(Client.java:23)
weatherResult bean is like below.
package examples.webservices.rpc.weather;
public class weatherResult implements java.io.Serializable{
     private     String zipcode;
     private float temperature;
     public weatherResult ( String temp , float temp2 ) {
          this.zipcode = temp;
          this.temperature = temp2;
     public String getZipcode()
          return this.zipcode;
     public float getTemperature()
          return temperature;
     public void setZipcode(String temp)
          this.zipcode = temp;
     public void setTemperature(float temp)
          temperature = temp;
what is problem you guess.. ?

Answer 1

yes. service provider and consumer both are generated in weblogic.
the only thing i did is to revise the 'weather' web service example to use java
bean ( complex type ).
( the 'weather' web service example was in Document 'Programming WebLogic Web
services' )
thanks for quick response.
Sam Pullara <[email protected]> wrote:
Hmmm. Is this all being generated in WebLogic or are you using an external
service? I think you should contact support. We may not support this
in 6.1
and you might have to move to 7.0 for more complete web service support.
Sam
dolso wrote:
thanks for response.
I have checked WSDL and i found another mystery.
In my WSDL document that is generated in webLogic 6.1,
'weatherResult' element's schema is like below
<complexType name="weatherResult">
<attribute name="temperature" type="float" />
<attribute name="zipcode" type="string" />
</complexType>
as you can see, return element is supposed to be named 'weatherResult'and composed
of attributes
but responsed element is like below
<return xsi:type='bean:weatherResult' xmlns:bean='java:examples.webservices.rpc.weather'>
<temperature xsi:type='xsd:float'>-273.15</temperature>
<zipcode xsi:type='xsd:string'>SomeString</zipcode>
</return>
there are two strange things.
1. there is 'return' element .
2. 'temperature' and 'zipcode' are elements, not attributes.
where did 'return' element come from? and why response element is composedof
elements?
why it doesn't match up to WSDL document?
I think that this problem caused error to instantiate weatherResultBean.
do you know why?
thanks for reading.
Sam Pullara <[email protected]> wrote:
It looks to me like you are returning a temperature and a zipcode but
your
weather result is expecting a zipcode and a temperature so the constructor
is
being called with a (float, String) rather than a (String, float).
At
least
that is my guess. Maybe the two are listed in the other order in the
WSDL?
Sam
dolso wrote:
hello.
I'm testing web services in weblogic 6.1
I have created a web service and client. they exchange messages well.
their request and Response messages are like below
request Message------------------------------------------------------------------------------------
POST /weather/weatheruri HTTP/1.1
Content-length: 483
<?xml version='1.0' encoding='UTF-8'?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV='http://schemas.xmlsoap.org/soap/envelope/'
xmlns:SOAP-ENC='http://schemas.xmlsoap.org/soap/encoding/' xmlns:xsi='http://www.w3.org/1999/XMLSchema-instance'
xmlns:xsd='http://www.w3.org/1999/XMLSchema'><SOAP-ENV:Body><ns0:getTemp
xmlns:ns0='urn:Weather'
SOAP-ENV:encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'>
<arg0 xsi:type='xsd:string'>SomeString</arg0>
</ns0:getTemp>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
Response Message-------------------------------------------------------------------------------------
HTTP/1.1 200 OK
Date: Mon, 08 Sep 2003 02:08:02 GMT
Server: WebLogic WebLogic Server 6.1 SP2 12/18/2001 11:13:46 #154529
Content-Type: text/xml; charset=UTF-8
Transfer-Encoding: Chunked
Connection: Close
0291
<?xml version='1.0' encoding='UTF-8'?><SOAP-ENV:Envelope xmlns:SOAP-ENV='http://schemas.xmlsoap.org/soap/envelope/'
xmlns:SOAP-ENC='http://schemas.xmlsoap.org/soap/encoding/' xmlns:xsi='http://www.w3.org/1999/XMLSchema-instance'
xmlns:xsd='http://www.w3.org/1999/XMLSchema'>
<SOAP-ENV:Body>
<ns0:getTempResponse xmlns:ns0='urn:local' SOAP-ENV:encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'>
<return xsi:type='bean:weatherResult' xmlns:bean='java:examples.webservices.rpc.weather'
<temperature xsi:type='xsd:float'>-273.15</temperature>
<zipcode xsi:type='xsd:string'>SomeString</zipcode>
</return>
</ns0:getTempResponse>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
0000
they seems to work fine.
but i'm getting error to decode response message on client side.
C:\... >java Client
java.lang.reflect.UndeclaredThrowableException: java.lang.InstantiationException
: examples.webservices.rpc.weather.weatherResult
at weblogic.soap.codec.SimpleSoapEncodingCodec.newInstance(SimpleSoapEnc
odingCodec.java:198)
at weblogic.soap.codec.SimpleSoapEncodingCodec.decode(SimpleSoapEncoding
Codec.java:178)
at weblogic.soap.codec.SimpleSoapEncodingCodec.decode(SimpleSoapEncoding
Codec.java:151)
at weblogic.soap.codec.CodecFactory.decode(CodecFactory.java:96)
at weblogic.soap.codec.Operation.read(Operation.java:100)
at weblogic.soap.codec.SoapMessage.readOperation(SoapMessage.java:200)
at weblogic.soap.codec.SoapMessage.read(SoapMessage.java:130)
at weblogic.soap.WebServiceProxy.receive(WebServiceProxy.java:464)
at weblogic.soap.WebServiceProxy.invoke(WebServiceProxy.java:430)
at weblogic.soap.SoapMethod.invoke(SoapMethod.java:186)
at weblogic.soap.wsdl.WebServiceInvocationHandler.invoke(WebServiceInvoc
ationHandler.java:31)
at $Proxy0.getTemp(Unknown Source)
at Client.main(Client.java:18)
Exception in thread "main" java.lang.NullPointerException
at Client.main(Client.java:23)
weatherResult bean is like below.
package examples.webservices.rpc.weather;
public class weatherResult implements java.io.Serializable{
     private     String zipcode;
     private float temperature;
     public weatherResult ( String temp , float temp2 ) {
          this.zipcode = temp;
          this.temperature = temp2;
     public String getZipcode()
          return this.zipcode;
     public float getTemperature()
          return temperature;
     public void setZipcode(String temp)
          this.zipcode = temp;
     public void setTemperature(float temp)
          temperature = temp;
what is problem you guess.. ?