SOAP Web Service Tutorials - Herong's Tutorial Examples - v5.13, by Herong Yang
First WSDL Test Failed with SOAP::Lite
This section provides a tutorial example on how to use the service() function to WSDL to call a Web service. Test failed with incorrect Envelope namespace.
According to SOAP::Lite 0.710 manual, WSDL is supported with the service() function. Since get GetSpeech Web service provides WSDL at http://www.xmlme.com/WSShakespeare.asmx?WSDL, I wrote my first SOAP::Lite WSDL client program like this:
#- GetSpeech_WSDL_Test.pl #- Copyright (c) 2009 HerongYang.com. All Rights Reserved. #- All rights reserved # use SOAP::Lite +trace; my $result = SOAP::Lite ->service('http://www.xmlme.com/WSShakespeare.asmx?WSDL') ->readable('true') ->GetSpeech('To be, or not to be');
The code looks simple. But it is not working:
POST http://www.xmlme.com/WSShakespeare.asmx HTTP/1.1 Accept: text/xml Accept: multipart/* Accept: application/soap Content-Length: 831 Content-Type: text/xml; charset=utf-8 SOAPAction: "http://xmlme.com/WebServices/GetSpeech" <?xml version="1.0" encoding="UTF-8"?> <soap:Envelope xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" soap:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://xmlme.com/WebServices"> <soap:Body> <tns:GetSpeech> <Request xsi:type="s:string">To be, or not to be</Request> </tns:GetSpeech> </soap:Body> </soap:Envelope> ... HTTP/1.1 500 Internal Server Error Cache-Control: private Connection: close Date: ... 2009 Server: Microsoft-IIS/6.0 Content-Length: 1106 Content-Type: text/xml; charset=utf-8 Client-Date: ... 2009 Client-Peer: Client-Response-Num: 1 X-AspNet-Version: 2.0.50727 X-Powered-By: ASP.NET <?xml version="1.0" encoding="utf-8"?> <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <soap:Header> <soap12:Upgrade xmlns:soap12="http://www.w3.org/2003/05/soap-envelope"> <soap12:SupportedEnvelope qname="soap:Envelope" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" /> <soap12:SupportedEnvelope qname="soap12:Envelope" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope" /> </soap12:Upgrade> </soap:Header> <soap:Body> <soap:Fault> <faultcode>soap:VersionMismatch</faultcode> <faultstring> System.Web.Services.Protocols.SoapException: Possible SOAP version mismatch: Envelope namespace http://schemas.xmlsoap.org/wsdl/soap/ was unexpected. Expecting http://schemas.xmlsoap.org/soap/envelope/. at System.Web.Services.Protocols.SoapServerProtocol.CheckHelperVersion at System.Web.Services.Protocols.SoapServerProtocol.ReadParameters() at System.Web.Services.Protocols.WebServiceHandler.CoreProcessRequest( </faultstring> <detail /> </soap:Fault> </soap:Body> </soap:Envelope>
The error message tells me that:
Table of Contents
Introduction to SOAP (Simple Object Access Protocol)
SOAP Message Transmission and Processing
SOAP MEP (Message Exchange Patterns)
PHP SOAP Extension Client Programs
PHP SOAP Extension Server Programs
PHP SOAP Web Service Example - getTemp
Perl SOAP::Lite - SOAP Server-Client Communication Module
Perl Socket Test Program for HTTP and SOAP
Perl SOAP::Lite for NumberToWords SOAP 1.1 Web Service
Perl SOAP::Lite for SOAP 1.2 Web Services
Java Socket and HttpURLConnection for SOAP
SAAJ - SOAP with Attachments API for Java
SoapUI - SOAP Web Service Testing Tool
WS-Security - SOAP Message Security Extension
WS-Security X.509 Certificate Token
Perl SOAP::Lite for GetSpeech SOAP 1.1 Web Service
Perl SOAP::Lite 0.710 for SOAP 1.2 Web Services
►Perl SOAP::Lite 0.710 for WSDL
►First WSDL Test Failed with SOAP::Lite
Downloading and Editing WSDL Document
Testing service() Function Locally
soapversion('1.2') Sets Correct Envelope namespace
Error: Object reference not set to an instance of an object