Soap WSDL with Null

问题

I need to specify a parameter in a function which is nullable. This doesn't work:

<message name="SaveRequest">
    <part name="serialNumber" nillable="true" type="xsd:int"/>
</message>

回答1:

<serialNumber xsi:nil="true" />

See w3.org XML Schema

来源：https://stackoverflow.com/questions/2540507/soap-wsdl-with-null