Question

我可能需要搜索或调查更多内容。但想到先问你们.. 我有几个WCF服务托管在Windows和客户端我有代理与所有这些服务合同。我的应用程序正在消耗它们，而且工作正常。现在我想知道，如果我给出服务端点/我拥有的其他内容，是否有任何方法可以从每个合同中获取操作列表。

结束品脱

http://localhost:8080/myservice/Echo

代理

[ServiceContract]
public interface IEcho
{
    string Message { [OperationContract]get; [OperationContract]set; }
    [OperationContract]
    string SendEcho();
}

我需要一个方法来获取服务合同中的操作列表......在这种情况下 List opeartions = SendEcho（）; 我该如何理解这一点？

Answer 1

我编写了一个示例代码，如下所示，但您需要在与您希望获取方法列表的服务相同的程序集中创建Echo服务：

public System.Collections.Generic.List<string> SendEcho()
    {
        // Get the current executing assembly and return all exported types included in it:
        Type[] exportedTypes = System.Reflection.Assembly.GetExecutingAssembly().GetExportedTypes();

        // The list to store the method names
        System.Collections.Generic.List<string> methodsList = new System.Collections.Generic.List<string>();

        foreach (Type item in exportedTypes)
        {
            // Check the interfaces implemented in the current class:
            foreach (Type implementedInterfaces in item.GetInterfaces())
            {
                object[] customInterfaceAttributes = implementedInterfaces.GetCustomAttributes(false);
                if (customInterfaceAttributes.Length > 0)
                {
                    foreach (object customAttribute in customInterfaceAttributes)
                    {
                        // Extract the method names only if the current implemented interface is marked with "ServiceContract"
                        if (customAttribute.GetType() == typeof(System.ServiceModel.ServiceContractAttribute))
                        {
                            System.Reflection.MemberInfo[] mi = implementedInterfaces.GetMembers();

                            foreach (System.Reflection.MemberInfo member in mi)
                            {
                                if (System.Reflection.MemberTypes.Method == member.MemberType)
                                {
                                    // If you want to have an idea about the method parameters you can get it from here: (count, type etc...)
                                    System.Reflection.ParameterInfo[] pi = ((System.Reflection.MethodInfo)member).GetParameters();

                                    // Check the method attributes and make sure that it is marked as "OperationContract":
                                    object[] methodAttributes = member.GetCustomAttributes(false);
                                    if (methodAttributes.Length > 0 && methodAttributes.Any(p => p.GetType() == typeof(System.ServiceModel.OperationContractAttribute)))
                                        methodsList.Add(member.Name);
                                }
                            }
                        }

                    }
                }
            }
        }

        return methodsList;
    }

希望这有帮助！

Answer 2

据推测，客户端正在引用接口/服务合同？如果是这样，则无需探测服务。只需使用反射来迭代界面的方法，检查哪些标记有[OperationContract]属性。

来自wcf代理的运营合同清单

2 个答案: