I have taken over support of a web application and it includes a SOAP web service. The soap server is coded in PHP using SoapServer (http://php.net/manual/en/soapserver.soapserver.php) and works correctly with PHP as the soap client. But now I am trying to use the WSDL in Visual Studio 2010, and although Visual Studio is able to see all the methods defined in the WSDL, when I have attached the web reference the .Net application throws an error when I try to compile. The error that is thrown is as follows:
Custom tool error: Unable to import WebServiceSchema. Unable to import binding ‘ApolloSoap’ from namespace ‘http://clientdomain/soap/export’. Unable to import operation ‘getPosts’. The datatype ‘http://clientdomain/soap/export/:getPostsArray’ is missing.
I will post the source of the WSDL document (Note that I have abridged the source because it is HUGE. I have taken out everything pertaining to other methods in the WSDL to try focus on the method that is reported in the error message.)
<?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://clientdomain/soap/export/" 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://clientdomain/soap/export/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">
<wsdl:types>
<s:schema targetNamespace="http://clientdomain/soap/export/" elementFormDefault="qualified">
<s:import namespace="http://microsoft.com/wsdl/types/"/>
<s:element name="post">
<s:complexType>
<s:sequence>
<s:element minOccurs="1" maxOccurs="1" name="Reference" type="s:string"/>
<s:element minOccurs="1" maxOccurs="1" name="Technician" type="s:string"/>
<s:element minOccurs="1" maxOccurs="1" name="Customer" type="s:string"/>
<s:element minOccurs="1" maxOccurs="1" name="Address" type="s:string"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="getPosts">
<s:complexType>
<s:sequence>
<s:element minOccurs="1" maxOccurs="1" name="authorisationcode" type="s:string"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="getPostsResponse">
<s:complexType>
<s:sequence>
<s:element name="getPostsArray" type="tns:getPostsArray"/>
</s:sequence>
</s:complexType>
</s:element>
<s:element name="getPostsArray">
<s:complexType>
<s:complexContent>
<s:restriction base="soapenc:Array">
<s:attribute ref="soapenc:arrayType" wsdl:arrayType="tns:post[]"/>
</s:restriction>
</s:complexContent>
</s:complexType>
</s:element>
</s:schema>
</wsdl:types>
<wsdl:message name="getPostsSoapIn">
<wsdl:part name="parameters" element="tns:getPosts"/>
</wsdl:message>
<wsdl:message name="getPostsSoapOut">
<wsdl:part name="parameters" element="tns:getPostsResponse"/>
</wsdl:message>
<wsdl:portType name="ApolloSoap">
<wsdl:operation name="getPosts">
<wsdl:documentation xmlns:wsdl='http://schemas.xmlsoap.org/wsdl/'>
Function ("getPosts")
</wsdl:documentation>
<wsdl:input message="tns:getPostsSoapIn"/>
<wsdl:output message="tns:getPostsSoapOut"/>
</wsdl:operation>
</wsdl:portType>
<wsdl:portType name="ApolloSoap12">
<wsdl:operation name="getPosts">
<wsdl:documentation xmlns:wsdl='http://schemas.xmlsoap.org/wsdl/'>
Function ("getPosts")
</wsdl:documentation>
<wsdl:input message="tns:getPostsSoapIn"/>
<wsdl:output message="tns:getPostsSoapOut"/>
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="ApolloSoap" type="tns:ApolloSoap">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="getPosts">
<soap:operation soapAction="http://clientdomain/soap/export/getPosts" 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="ApolloSoap12" type="tns:ApolloSoap12">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="getPosts">
<soap12:operation soapAction="http://clientdomain/soap/export/getPosts" 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="wService">
<wsdl:port name="ApolloSoap" binding="tns:ApolloSoap">
<soap:address location="http://clientdomain//web/_soap/server.php?pmoaEyLb3BvW0Vwc3jf="/>
</wsdl:port>
<wsdl:port name="ApolloSoap12" binding="tns:ApolloSoap12">
<soap12:address location="http://clientdomain//web/_soap/server.php?pmoaEyLb3BvW0Vwc3jf="/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
Can anyone help me figure out what is wrong with this WSDL document and why .Net is not seeing the definition of getPostsArray despite the fact that it is defined in the types section of the document?
UPDATE:
I have a suspicion that the lines causing the problem for visual Studio are the following:
<s:restriction base="soapenc:Array">
<s:attribute ref="soapenc:arrayType" wsdl:arrayType="tns:post[]"/>
</s:restriction>
I suspect these lines because when I create a simple web service in Visual Studio I see that the generated code for the array is as follows:
<s:complexType name="ArrayOfPost">
<s:sequence>
<s:element minOccurs="0" maxOccurs="unbounded" name="Post" nillable="true" type="tns:Post" />
</s:sequence>
</s:complexType>
Can anyone explain these two different ways of defining an array of a complex type and confirm/deny that the syntax in my WSDL document is incorrect?
Visual Studio is telling you the truth. Here’s what XMLSpy says:
File Untitled1.wsdl is not valid.
Invalid XML schema: ”tns:getPostsArray’ must refer to an existing simple or complex type.’