问题
I want to know how the wsdl is written in wcf. As i know the proxy class serialize the data and form a soap message to send over network, in the same way , i want to know who writes the wsdl file and takes care of serializing results of a call.
回答1:
The abstract ServiceHostBase class has a method called CreateDescription that will take your service and operation contracts as well as your fault and data contracts and turns those into a ServiceDescription. This is then further handled by a WsdlExporter and turned into a WSDL and XSD file. What gets output to the WSDL (and XSD) is available on the service class as the "service description" (property "Description") - it contains information about the endpoints, bindings, other config settings etc.
Have a look at the MSDN Docs for the WsdlExporter class. You can even customize this process, if you want to - see these blog posts for more info on that:
- Control generated WSDL from WCF Service
- Flattening your WSDL
And have a look at the MSDN docs on:
- Metadata Architecture Overview
- Exporting custom metadata for a WCF extension
Marc
来源：https://stackoverflow.com/questions/1554001/how-the-wsdl-is-written-in-wcf