问题
I need to call a webservice. I generated a proxy and invoked the method. But it keeps failing. Because the API is expecting soap/xml in the header whereas the proxy client generated in Visual studio is sending text/xml in header.
Question: Is it possible to change the value of the Content-Type header for a generated proxy client?
回答1:
Content Type text/xml; charset=utf-8 was not supported by service
this is usually a mismatch in the client/server bindings, where the message version in the service uses SOAP 1.2 (which expects application/soap+xml) and the version in the client uses SOAP 1.1 (which sends text/xml). WSHttpBinding uses SOAP 1.2, BasicHttpBinding uses SOAP 1.1.
It usually seems to be a wsHttpBinding on one side and a basicHttpBinding on the other.
You can change the configuration on the client side to WSHttpBinding which uses SOAP 1.2 and it will affect the content type header.
来源：https://stackoverflow.com/questions/26913574/change-soap-request-header-from-text-xml-to-soap-xml-for-asmx-webservice-in-c-sh