如何强制 WCF 使用所需的方法参数(minoccurs=“1")自动生成 WSDL? [英] How can I force WCF to autogenerate WSDLs with required method parameters (minoccurs="1")?

问题描述

在使用 WCF 和 OperationContracts 时，我定义了以下方法:

While using WCF and OperationContracts I have the following method defined:

    [OperationContract]
    [FaultContract(typeof(ValidationFault))]
    [FaultContract(typeof(FaultException<ExceptionDetail>))]
    int DoSomething(int someId, MyComplexType messageData);

当 WCF 运行时将其转换为 WSDL 时，它最终会为参数 someId 和 messageData 列出 minoccurs="0"(如果缺少这些参数，随后会引发运行时错误).

When this gets translated to a WSDL by the WCF runtime, it ends up with with minoccurs="0" listed for the parameters someId and messageData (and subsequently throws a runtime error if these parameters are missing).

如果我使用 SoapUI 生成代理，我会得到如下所示的内容:

If I generate a proxy using SoapUI I get something that looks like this:

  <com:DoSomething>
     <!--Optional-->
     <com:EventId>1</com:EventId>
     <!--Optional-->
     <com:myComplexType >
        <com:id>1</com:id>
     </com:myComplexType >
  </com:DoSomething>

MyComplexType 中的 id 字段使用 IsRequired="true" 使用 DataMemeber 属性进行标记，因此公开为必填项.

The id field in MyComplexType is marked up with DataMemeber attribute using IsRequired="true" and thus is exposed as mandatory.

如果 WSDL 指定一个参数是可选的，而它不是可选的，这显然是一种误导，但我看不到任何明显的方法来标记 OperationContract 以强制 WCF 根据需要识别和公开这些参数.

It's obviously quite misleading for the WSDL to specify that a parameter is optional when it isn't, but I can't see any obvious way to markup the OperationContract to force WCF to recognise and expose these parameters as required.

我有点困惑，似乎没有明显的方法可以做到这一点(阅读智能感知/msdn/google).或者我会失明并忽略一些明显的东西.

I'm slightly baffled there doesn't seem an obvious way to do this (reading intellisense / msdn / google). Or I'm going blind and overlooking something obvious.

有什么线索吗?

推荐答案

我刚刚写了一个 博文 关于这个主题，上周我自己也遇到了这个问题.它解释了如何修改 WCF 在运行时生成的元数据.

I've just written a Blog post about this subject, as I ran into the problem myself last week. It explains how you can modify the metadata that WCF generates at runtime.

除了下载源文件外，您只需要在合同定义中添加一个属性.像这样:

Aside from downloading the source file, you only need to add an attribute to your contract definition. Like so:

[ServiceContract]
[RequiredParametersBehavior]
public interface ICalculatorService
{
    [OperationContract]
    int Add(int firstValue, int secondValue);
}

这是更详细解释它的博客文章:使用 WCF 控制 WSDL minOccurs

Here's the Blog post that explains it in more detail: Controlling WSDL minOccurs with WCF

这篇关于如何强制 WCF 使用所需的方法参数(minoccurs=“1")自动生成 WSDL?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！