WCF 服务可以有构造函数吗? [英] Can WCF Service have constructors?

问题描述

当我在我的解决方案中新建一个 WCF 服务时，我可以执行以下操作，有一个带参数的构造函数传入吗?如果是，运行时如何、何时以及在何处填充我所需的 IBusinessLogic 对象?

When I new a WCF service in my solution, can I do the following, have a constructor with parameter to pass in? If yes, how, when and where does the runtime fill in my required IBusinessLogic object?

[ServiceContract]
public interface IServiceContract
{
    [OperationContract]
    ...
}

public class MyService : IServiceContract
{
    IBusinessLogic _businessLogic;
    public ServiceLayer(IBusinessLogic businessLogic)
    {
        _businessLogic = businessLogic;
    }
    ...
}

推荐答案

开箱即用的 WCF 将仅使用默认构造函数，您不能使用参数化构造函数.您必须做一些额外的工作才能使 WCF 调用参数化构造函数.

Out of the box WCF will only use the default constructor, you can't use parameterised constructors. You have to do a bit of extra work to make WCF call parameterised constructors.

你可以试试这个:

如何我如何将值传递给 wcf 服务的构造函数?

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