Singleton WebService（ASMX，不是WCF）

Question

Is there a way to define an C# ASMX WebService as singleton? Maybe in the Web.config file? Currently I'm not using WCF.

Thanks in advance

    [WebService(Namespace = "http://www.mydomain.eu/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    public class MyService : System.Web.Services.WebService
    {
        ...
    }

Answer 1

You can hide your web service behind a facade that is a singleton:

public static class ServiceFacade
{
    public static void ServiceOperation()
    {
        using (var service = new MyService())
        {
            service.Operation();
        }
    }
}

Answer 2

You can't create Singleton web service, because web service runs on IIS and is treated as web app and is maintained as such. Each client will share single application instance, but each of them will have own Request, Response, Session etc.

Answer 3

您始终可以使主数据对象也成为静态对象，并且它将在所有辅助实例之间共享。