为什么 WCF 中不允许方法重载? [英] Why method overloading is not allowed in WCF?

问题描述

假设这是一个 ServiceContract

[ServiceContract]
public interface MyService
{
    [OperationContract]
    int Sum(int x, int y);

    [OperationContract]
    int Sum(double x, double y);

}

C#中允许方法重载，但WCF不允许重载操作契约托管程序将在托管时抛出 InvalidOperationException

Method overloading is allowed in C#, but WCF does not allow you to overload operation contracts The hosting program will throw an InvalidOperationException while hosting

推荐答案

简而言之，不能重载方法的原因与以下事实有关:WSDL 不支持 C# 中存在的相同重载概念.以下帖子详细说明了为什么这是不可能的.

In a nutshell, the reason you cannot overload methods has to do with the fact that WSDL does not support the same overloading concepts present inside of C#. The following post provides details on why this is not possible.

http://jeffbarnes.net/blog/post/2006/09/21/Overloading-Methods-in-WCF.aspx

要解决此问题，您可以明确指定 OperationContract 的 Name 属性.

To work around the issue, you can explicitly specify the Name property of the OperationContract.

[ServiceContract]
public interface MyService
{
    [OperationContract(Name="SumUsingInt")]
    int Sum(int x, int y);

    [OperationContract(Name="SumUsingDouble")]
    int Sum(double x, double y);
}

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