Calling a webservices from Oracle 10G ( 10.2.0.2)

Question

Hi:
I am in the process of putting a database Java stored procedure that can call an external webservices.
PL/SQL Wrapper -> Java Stored Procedure-> External Web services
I loaded the following jars in the dataase.
dbwsa.jar
dbwsclient.jar
1. I am having issues consuming this external webservice from SQL*PLUS. Do you know whether I need to load any other JARS ?
2. How can I debug this issue ? I enabled TCP Monitor in JDeveloper and don't see anything when I call the PL/SQL wrapper in SQL*PLUS.
3. I can use a Java client and tested the Web services OK.
error message:
SQL> l
1 declare
2 x varchar2(100);
3 begin
4
5 x := tester.test_db1();
6* end;
SQL> /
calling
http://XX.XX.YY.121:8988/Application9-ViewController-context-root/MyWebService1S
oapHttpPort
java.rmi.RemoteException: Error parsing envelope; nested exception is:
javax.xml.soap.SOAPException: Error parsing envelope
at
view.proxy.runtime.MyWebService1SoapHttp_Stub.sayhello2(MyWebService1SoapHttp_St
ub.java:99)
at
prpd.MyWebService1SoapHttpPortClient.sayhello2(MyWebService1SoapHttpPortClient.j
ava:41)
at prpd.TEST_DB.TEST_DB1(TEST_DB.java:21)
Caused by: javax.xml.soap.SOAPException: Error parsing envelope
at
oracle.j2ee.ws.saaj.soap.soap11.SOAPImplementation11.createEnvelope(SOAPImplemen
tation11.java:103)
at oracle.j2ee.ws.saaj.soap.SOAPPartImpl.getEnvelope(SOAPPartImpl.java:75)
at oracle.j2ee.ws.saaj.soap.MessageImpl.getSOAPBody(MessageImpl.java:934)
at
oracle.j2ee.ws.client.StreamingSender._preHandlingHook(StreamingSender.java:692)
at oracle.j2ee.ws.client.StubBase._preHandlingHook(StubBase.java:688)
at oracle.j2ee.ws.client.StreamingSender._sendImpl(StreamingSender.java:207)
at oracle.j2ee.ws.client.StreamingSender._send(StreamingSender.java:112)
at
view.proxy.runtime.MyWebService1SoapHttp_Stub.sayhello2(MyWebService1SoapHttp_St
ub.java:76)
... 2 more
Caused by: java.lang.IllegalArgumentException
at oracle.xml.parser.v2.XMLParser.setAttribute(XMLParser.java:794)
at
oracle.j2ee.ws.saaj.soap.soap11.SOAPImplementation11.createEnvelope(SOAPImplemen
tation11.java:54)
... 9 more
PL/SQL procedure successfully completed.
SQL> /
thx
Raj

Answer 1

thanks Tugduall for the comments. here are the instructions I followed to create a java stored procedure that can call a webservices. Unfortunately, this seems like a very complex task. Do you have any ideas how I could debug or troubleshoot this issue ?
Please note that I used JDeveloper to generate the client code.
========================================================
1. download the dbws-callout-utility-10R2.zip from OTN at:
http://www.oracle.com/technology/sample_code/tech/java/jsp/dbwebservices.html
2. create an application/project with 1.4 JDK.
3. create a web service by ‘Business Tier’->Web Service->Web Service Proxy->UDDI
4. next… to ‘Search for’, type ‘quote’.
5. from the list select one. For me ‘Quote of day’ was picked.
6. click Next all the way to Finish.
7. from the ‘Application Sources’ select ‘QuotoProxy’ then find its main method.
8. at the section
// Add your own code here, add the line like:
System.out.println("quote "+myPort.getQuote());
9. run it to see its return.
10. cteate a class that has a method to call client method to be invoked (static)
like the following:
package dbws;
import dbws.QotdPortClient;
public class MainClientStub {
public MainClientStub() {
public static String getMyQoute(){
QotdPortClient myClient = null;
try {
myClient = new QotdPortClient();
return myClient.getQuote();
} catch (Exception e) {
e.printStackTrace();
return null;
note that the package name in your project.
11. create a deployment profile as ‘JAR File’. Uncheck the box ‘Project Dependencies’
12. deploy it to the local box. ‘Deploy to JAR File’.
13. unzip the dbws-callout-utility-10R2.zip to get dbwsa.jar.
14. execute the following from command line:
loadjava –user test/[email protected] -resolve –verbose –synonym –grant public to dbwsa.jar myarchive1.jar
loadjava -user test/test@orcl1020 -resolve -verbose -synonym -genmissing -grant public myarchive1.j
ar dbwsa.jar
loadjava -user sys/<sys_pass> -resolve -verbose -synonym -genmissing -grant public myarchive1.jar dbwsa.jar
15. create a function like the following:
CREATE OR REPLACE FUNCTION teststub RETURN VARCHAR2 AS
LANGUAGE JAVA NAME ‘dbws.MainClientStub.getMyQoute() return java.lang.String’;
16. Run at sqlplus: Select teststub from dual;
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