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.NET Forum / ASP.NET / Web Services / April 2006a differnt way to consuming web services?
hi there: Is there any different way to consume Web services besides using "Add a web reference" or creating a proxy with wsdl.exe? I need to pass a username and password to a particular web service and I would love some guidance Thanks in advance for your help jo I know the web service is coded in java Would this complicate thing more? Thanks jo You could just use HttpWebRequest and manually build the request stream and headers (web services use HTTP just like web pages) - but wsdl.exe usually makes this job a lot easier! Have you tried using Add Web Reference / wsdl.exe - have you tried this and it doesn't work? How do you need to pass the credentials? Josh http://www.thejoyofcode.com/ hi josh: thansk for answering. I have tryed wsdl.exe and add web reference and i get the error: - the HTML document does not contain Web Service discovery information I have no idea how to pass the credentials. I have tryed and succesfully consumend web services from within my organization and outside but i never came across this :( I need to pass tree parameters when connecting: username, password, and some sort of sequence number Thanks in advance Jo You need to point add web reference to a valid WSDL file (an xml document that describes the web service). It sounds like you've pointed it at an HTML page. The fact it's a java web service shouldn't make too much difference - the whole point of web services is that they're interoperable. Have you asked the guys who operate the service for the location of their WSDL. If it doesn't have a WSDL then it's not really a web service. Let me know what happens next. Josh http://www.thejoyofcode.com. hi: yes i though the same, they have a web service what s more in their documentation you can read the wsdl fille. in the file you can see where the document is, i went there and tryed the wsdl.exe in something similar to this http://host.com/some_folder/file.wsdl and i still get the same error I though that maybe in java the wsdl was put togheter in a different way? what are yr thoughts? Nope - wsdl is an industry standard, not an MS thing. What does the .wsdl file look like inside - does it look anything like this (WSDL from simple HelloWorld service)? <?xml version="1.0" encoding="utf-8"?> <wsdl:definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:tns="http://tempuri.org/" xmlns:s="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" targetNamespace="http://tempuri.org/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"> <wsdl:types> <s:schema elementFormDefault="qualified" targetNamespace="http://tempuri.org/"> <s:element name="HelloWorld"> <s:complexType /> </s:element> <s:element name="HelloWorldResponse"> <s:complexType> <s:sequence> <s:element minOccurs="0" maxOccurs="1" name="HelloWorldResult" type="s:string" /> </s:sequence> </s:complexType> </s:element> </s:schema> </wsdl:types> <wsdl:message name="HelloWorldSoapIn"> <wsdl:part name="parameters" element="tns:HelloWorld" /> </wsdl:message> <wsdl:message name="HelloWorldSoapOut"> <wsdl:part name="parameters" element="tns:HelloWorldResponse" /> </wsdl:message> <wsdl:portType name="WebServiceSoap"> <wsdl:operation name="HelloWorld"> <wsdl:input message="tns:HelloWorldSoapIn" /> <wsdl:output message="tns:HelloWorldSoapOut" /> </wsdl:operation> </wsdl:portType> <wsdl:binding name="WebServiceSoap" type="tns:WebServiceSoap"> <soap:binding transport="http://schemas.xmlsoap.org/soap/http" /> <wsdl:operation name="HelloWorld"> <soap:operation soapAction="http://tempuri.org/HelloWorld" style="document" /> <wsdl:input> <soap:body use="literal" /> </wsdl:input> <wsdl:output> <soap:body use="literal" /> </wsdl:output> </wsdl:operation> </wsdl:binding> <wsdl:binding name="WebServiceSoap12" type="tns:WebServiceSoap"> <soap12:binding transport="http://schemas.xmlsoap.org/soap/http" /> <wsdl:operation name="HelloWorld"> <soap12:operation soapAction="http://tempuri.org/HelloWorld" style="document" /> <wsdl:input> <soap12:body use="literal" /> </wsdl:input> <wsdl:output> <soap12:body use="literal" /> </wsdl:output> </wsdl:operation> </wsdl:binding> <wsdl:service name="WebService"> <wsdl:port name="WebServiceSoap" binding="tns:WebServiceSoap"> <soap:address location="http://localhost:2910/AspNet/WebService.asmx" /> </wsdl:port> <wsdl:port name="WebServiceSoap12" binding="tns:WebServiceSoap12"> <soap12:address location="http://localhost:2910/AspNet/WebService.asmx" /> </wsdl:port> </wsdl:service> </wsdl:definitions> Yes. it loks similar to that, a bit shorter, there is some interesting elements: .... ... <wsdl:message name="message_Name"> <wsdl:part name="User" type="xsd:string /> .... <wsdl:portType name="port..."> <wsdl:operation name="operation_namel" parameterOrder="User ...."> .... The part where it says user, after that there is other parametrs i should be passing so I guess thats where i have to add them but i have no idea how And you pointed wsdl.exe at this .wsdl document? oops - hit enter too soon. You shouldn't have to add anything to the WSDL. It describes the interface of the web service you're using so it's up to the operator of the web service to provide an accurate WSDL. Which, from what you've said, it sounds like they have done. As I asked earlier - are you sure you pointed wsdl.exe at that document? Otherwise we probably can't help much more without seeing the WSDL itself. Sorry. Josh http://www.thejoyofcode.com/ hi josh; yes, i pointed wsdl.exe to the http://..../file.wsdl :( and i get the error mentioned above, the html document does not contain web service discovery information I ll ask to see if i can put the wsdl doc here Thanks Jo OK Jo - all sounds very odd. If you can post the WSDL - a link would be best. J ok, I m affraid i cnat put the wsdl file here, :( But I asked and they said that if i want to create a proxy class i have to generate it from this wsdl file that is in their doc. SO do you know how to do that? Should i create a web service myself and use that file as a wsdl l file compile and put it somewhere so i can use it to create my proxy?? Any ideas, welcome Jo > OK Jo - all sounds very odd. > > If you can post the WSDL - a link would be best. > > J Nope - just save the WSDL in their doc somewhere and point wsdl.exe at it. Josh http://www.thejoyofcode.com/ HI josh: tryed that but it doesnt work, It gives me several different formatting errors, this is their fault If at the end I find out a technical solution I ll post it here. Thanks for your help Jo > Nope - just save the WSDL in their doc somewhere and point wsdl.exe at > it. > > Josh > http://www.thejoyofcode.com/
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