强制对象参数在WSDL中被序列化为可选（minOccurs / nillable / nullable问题） [英] Mandatory Object Parameter gets serialized as optional in the WSDL (minOccurs/nillable/nullable problem)

问题描述

我需要将一个对象传递给WebService方法作为第一个参数，这对于完成请求是绝对必要的。问题是，默认情况下，引用类型始终被序列化为可选。简单示例：

Hi,

I need to pass an object to a WebService Method as 1st parameter which is absolutely neccesarry for the request to complete. The problem is, by default reference types are always serialized as optional. Simple example:

推荐答案

实际上，事实上，WSDL说元素是minOccurs =" 1"毫无意义。传入的XML未针对WSDL中的模式进行验证。即使WSDL确实以某种方式说minOccurs =" 1"，它也不会产生任何影响;调用者仍然可以省略参数。

Actually, the fact that the WSDL says the element is minOccurs="1" is meaningless. Incoming XML is not validated against the schemas in the WSDL. Even if the WSDL did somehow say minOccurs="1", it wouldn't make a difference; it would still be possible for a caller to omit the parameter.

您需要检查代码中的参数查看它是否为空。

You will need to check the parameter in code to see if it is null.

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