.Net 4.5 Svcutil 生成两个同名操作(Method 和 MethodAsync) [英] .Net 4.5 Svcutil generates two operations with the same name (Method and MethodAsync)

问题描述

我正在使用 svcutil a la 使用预定义的 wsdl:

I am consuming a predefined wsdl with svcutil a la:

svcutil some_service.wsdl

生成的方法之一具有以下签名:

one of the methods generated has the following signature:

[System.ServiceModel.OperationContractAttribute(Action="http://ws.example.org/SubmitData", ReplyAction="*")]
SubmitDataResponse SubmitData( SubmitDataRequest request )

虽然来自 VS2010/.net35 的 scvutil 只生成上述内容并且 VS 启动服务没有问题，作为 VS2012/.net45 一部分的 svcutil 程序也生成了一个带有签名的方法

While scvutil from VS2010/.net35 generates only the above and VS has no problem lanuching the service, the svcutil program that is part of VS2012/.net45 also generates a method with the signature

[System.ServiceModel.OperationContractAttribute(Action="http://ws.example.org/SubmitData", ReplyAction="*")]
Task<SubmitDataResponse> SubmitDataAsync( SubmitDataRequest request );

这会导致运行时异常:

System.InvalidOperationException: 不能有两个操作具有相同名称的相同合同，方法 SubmitDataAsync 和类型为 MyType 的 SubmitData 违反了此规则.您可以更改名称通过更改方法名称或使用OperationContractAttribute 的名称属性.

System.InvalidOperationException: Cannot have two operations in the same contract with the same name, methods SubmitDataAsync and SubmitData in type MyType violate this rule. You can change the name of one of the operations by changing the method name or by using the Name property of OperationContractAttribute.

我可以通过删除 Async 附加方法或简单地使用 VS2010 中的 svcutil 来解决此问题.但我想知道为什么 svcutil 会生成一个导致运行时异常的接口(这是一个错误吗?)，以及我是否应该做一些额外的事情来使其工作.

I can work around this by deleting the Async appended methods or simply using svcutil from VS2010. But I am wondering why svcutil generates an interface that causes a runtime exception (is this a bug?), and whether there is something additional I am supposed to do to make it work.

推荐答案

默认行为似乎已更改.如果您提供 /syncOnly 参数，它会为我保留旧的行为.

The default behaviour appears to have been changed. If you provide the /syncOnly parameter it preserved the old behaviour for me.

 /syncOnly                          - Generate only synchronous method
                                  signature. Default: generate synchronous
                                  and task-based asynchronous method
                                  signatures.

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