WCF的实现，不使用接口 [英] WCF implementing without using interface

问题描述

大家好，

我有一个WCF服务，我想实现一些适用于我所有服务的基本类逻辑，例如身份验证和其他基本检查.默认实现创建一个要实现的接口.我显然不能向其添加具体的基类函数.

所以问题是..在实现WCF服务时不使用接口是否有不利之处?

感谢

Hi guys,

I have a WCF Service and I would like to implement some base class logic such as authentication and other basic checks which applies to all my services. The default implementation creates an interface to implement. I can''t obviously then add concrete base class functions to this.

So the question is.. is there any downside to not using an interface when implementing a WCF Service?

thanks

推荐答案

嗨Ashman786，

通常，在没有接口的情况下实现服务是个坏主意，因为接口代表了服务协定.无论如何，我看不出任何原因你都不能做两者".

看一下示例代码"structure".

您可以使用继承-也可以使用Interfaces.

所以你有:

常见服务操作的接口，如下所示:

Hi Ashman786,

In General it is a bad idea to implement Services without Interfaces, cause the Interface represents the Service contract. Anyway I don''t see any reason why you can''t do "both".

Look at this example code "structure".

You can work with inheritance - also with Interfaces.

So you have:

a Interface for common Service operations like this:

[ServiceContract]
public interface ICommonServiceMethods
{
    [OperationContract]
    string WriteLog(string strMessage);
}

从通用操作接口继承的特定服务接口，如下所示:

a specific Service Interface inherited from the common operations Interface like this:

[ServiceContract]
public interface IService1 : ICommonServiceMethods
{
    [OperationContract]
    string GetData(int value);
}

您可以在基类中实现常见的Service操作(可能是抽象的)

You can implement your common Service operations in a base class (could be abstract)

public class BaseService : ICommonServiceMethods
 {
     public string WriteLog(string strMessage)
     {
         return strMessage; //dummy
     }
 }

然后只需在实现特定Service的同时从基类派生特定Service实例即可.

And then just derive your specific Service instance from the base class while implementing the specific Service.

public class Service1 : BaseService, IService1
{
    public string GetData(int value) { return value.ToString(); /* dummy */}
}

因此，无需考虑省略接口"-尽管从技术上讲，您可以...

希望对您有帮助吗?

亲切的问候约翰内斯

So no need to think about omitting "Interfaces" - although technically you could...

I hope this helps?

Kind regards Johannes

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