Publish PL/SQL as Web Service

I am new to Oracle Web Service. I went through Publish PL/SQL as Web Service tutorial and tested from browser. When I tested by
http://127.0.0.1:8888/PLSQL-PLSQL-context-root/my.CompanyWebService
I got following message:
"Error parsing the WSDL for this endpoint.
oracle.wsdl.internal.WSDLException: oracle.xml.parser.v2.XMLParseException: Start of root element expected."
I was able to display WSDL somehow by
http://127.0.0.1:8888/PLSQL-PLSQL-context-root/my.CompanyWebService?WSDL
I have no clue what is the problem. Please help.
Thanks.
Yi Zhou
[email protected]

Hi,
The problem could be because of wrong JDK version. Looks like you are using JDK1.4.2. Could you try checking with JDK 1.3.x
If you still face problems, specify your environment details and at what stage you are getting the error.
Sujatha.

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repost

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> Hi TOM,
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Please mark as answer or vote as helpful if my reply does

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I downloaded and installed the PL/SQL code from:
http://technet.oracle.com/tech/webservices/htdocs/samples/dbwebservice/DBWebServices_PLSQL.html
on Oracle 9i version 2 (on both Windows and Solaris) which can be used to consume simple web services. However, I got the following error running the local time demo:
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I downloaded and installed the PL/SQL code from:
http://technet.oracle.com/tech/webservices/htdocs/samples/dbwebservice/DBWebServices_PLSQL.html
on Oracle 9i version 2 (on both Windows and Solaris) which can be used to consume simple web services. However, I got the following error running the local time demo:
select time_service.GET_LOCAL_TIME('19104') from dualORA-30625: method dispatch on NULL SELF argument is disallowed
ORA-06512: at "XN.DEMO_SOAP", line 84
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It appears to occur upon doing this:
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Regards
Victor

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Error running demo PL/SQL consuming web services

I downloaded and installed the code from:
http://technet.oracle.com/tech/webservices/htdocs/samples/dbwebservice/DBWebServices_PLSQL.html
on Oracle 9i version 2 (on both Windows and Solaris).
But I got the following error running the local time
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ORA-29273: HTTP request failed
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ORA-12545: Connect failed because target host or object does not exist
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Mike,
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Same error:
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-- code for calling the time_service
DECLARE
ZIPCODE VARCHAR2(200);
v_Return VARCHAR2(200);
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TYPE request IS RECORD (
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TYPE response IS RECORD (
doc xmltype);
FUNCTION new_request(method IN VARCHAR2,
namespace IN VARCHAR2)
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PROCEDURE add_parameter(req IN OUT NOCOPY request,
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type IN VARCHAR2,
value IN VARCHAR2);
FUNCTION invoke(req IN OUT NOCOPY request,
url IN VARCHAR2,
action IN VARCHAR2) RETURN response;
FUNCTION get_return_value(resp IN OUT NOCOPY response,
name IN VARCHAR2,
namespace IN VARCHAR2) RETURN VARCHAR2;
END;
CREATE OR REPLACE PACKAGE BODY demo_soap AS
FUNCTION new_request(method IN VARCHAR2,
namespace IN VARCHAR2)
RETURN request AS
req request;
BEGIN
req.method := method;
req.namespace := namespace;
RETURN req;
END;
PROCEDURE add_parameter(req IN OUT NOCOPY request,
name IN VARCHAR2,
type IN VARCHAR2,
value IN VARCHAR2) AS
BEGIN
req.body := req.body ||
'<'||name||' xsi:type="'||type||'">'||value||'</'||name||'>';
END;
PROCEDURE generate_envelope(req IN OUT NOCOPY request,
env IN OUT NOCOPY VARCHAR2) AS
BEGIN
env := '<SOAP-ENV:Envelope
xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/1999/XMLSchema">
<SOAP-ENV:Body><'||req.method||' '||req.namespace||'
SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">'||
req.body||'</'||req.method||'></SOAP-ENV:Body></SOAP-ENV:Envelope>';
END;
PROCEDURE show_envelope(env IN VARCHAR2) AS
i pls_integer;
len pls_integer;
BEGIN
i := 1; len := length(env);
WHILE (i <= len) LOOP
dbms_output.put_line(substr(env, i, 60));
i := i + 60;
END LOOP;
END;
PROCEDURE check_fault(resp IN OUT NOCOPY response) AS
fault_node xmltype;
fault_code VARCHAR2(256);
fault_string VARCHAR2(32767);
BEGIN
fault_node := resp.doc.extract('/soap:Fault',
'xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/');
IF (fault_node IS NOT NULL) THEN
fault_code := fault_node.extract('/soap:Fault/faultcode/child::text()',
'xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/').getstringval();
fault_string := fault_node.extract('/soap:Fault/faultstring/child::text()',
'xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/').getstringval();
raise_application_error(-20000, fault_code || ' - ' || fault_string);
END IF;
END;
FUNCTION invoke(req IN OUT NOCOPY request,
url IN VARCHAR2,
action IN VARCHAR2) RETURN response AS
env VARCHAR2(32767);
http_req utl_http.req;
http_resp utl_http.resp;
resp response;
BEGIN
generate_envelope(req, env);
-- show_envelope(env);
http_req := utl_http.begin_request(url, 'POST','HTTP/1.0');
utl_http.set_header(http_req, 'Content-Type', 'text/xml');
utl_http.set_header(http_req, 'Content-Length', length(env));
utl_http.set_header(http_req, 'SOAPAction', action);
utl_http.write_text(http_req, env);
http_resp := utl_http.get_response(http_req);
utl_http.read_text(http_resp, env);
utl_http.end_response(http_resp);
resp.doc := xmltype.createxml(env);
resp.doc := resp.doc.extract('/soap:Envelope/soap:Body/child::node()',
'xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"');
-- show_envelope(resp.doc.getstringval());
check_fault(resp);
RETURN resp;
END;
FUNCTION get_return_value(resp IN OUT NOCOPY response,
name IN VARCHAR2,
namespace IN VARCHAR2) RETURN VARCHAR2 AS
BEGIN
RETURN resp.doc.extract('//'||name||'/child::text()',
namespace).getstringval();
END;
END;
-- code for the package time_service
CREATE OR REPLACE PACKAGE time_service AS
FUNCTION get_local_time(zipcode IN VARCHAR2) RETURN VARCHAR2;
END;
CREATE OR REPLACE PACKAGE BODY time_service AS
-- Location of Web service definition
-- http://www.alethea.net/webservices/LocalTime.asmx?WSDL
     FUNCTION get_local_time(zipcode IN VARCHAR2) RETURN VARCHAR2 IS
               req demo_soap.request;
               resp demo_soap.response;
     BEGIN
          req := demo_soap.new_request('LocalTimeByZipCode',
          'xmlns="http://www.alethea.net/webservices/"');
          demo_soap.add_parameter(req, 'ZipCode', 'xsd:string', zipcode);
          resp := demo_soap.invoke(req,
          'http://www.alethea.net/webservices/LocalTime.asmx',
          'http://www.alethea.net/webservices/LocalTimeByZipCode');
          RETURN demo_soap.get_return_value(resp, 'LocalTimeByZipCodeResult',
                    'xmlns="http://www.alethea.net/webservices/"');
     END;
END;

Publish PL/SQL as Web Service

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