以下代码使用Castle Windsor 3.0的WCF Integration Facility注册WCF自托管服务:
using System;
using System.Collections.Generic;
using System.Linq;
using System.ServiceModel;
using Castle.Facilities.WcfIntegration;
using Castle.MicroKernel.Registration;
using Castle.Windsor;
namespace SelfHost
{
[ServiceContract]
public interface IHelloWorldService
{
[OperationContract]
string SayHello(string name);
}
[ServiceBehavior(IncludeExceptionDetailInFaults = true)]
public class HelloWorldService : IHelloWorldService
{
private readonly PerSession _perSession;
public HelloWorldService(PerSession perSession)
{
_perSession = perSession;
}
public string SayHello(string name)
{
return string.Format("Hello, {0} {1}", name, _perSession.Info());
}
}
public class PerSession
{
private readonly string _now;
public PerSession()
{
_now = DateTime.Now.ToString();
}
public string Info()
{
return _now;
}
}
internal class Program
{
private static void Main(string[] args)
{
Uri baseAddress = new Uri("http://localhost:8080/hello");
var container = new WindsorContainer();
container.AddFacility<WcfFacility>();
container.Register(
Component.For<PerSession>().LifeStyle.PerWcfSession(),
Component.For<IHelloWorldService>()
.ImplementedBy<HelloWorldService>()
.AsWcfService(
new DefaultServiceModel()
.AddBaseAddresses(baseAddress)
.AddEndpoints(WcfEndpoint.BoundTo(new BasicHttpBinding()).At("basic"))
.PublishMetadata(o => o.EnableHttpGet())
)
);
Console.WriteLine("The service is ready at {0}", baseAddress);
Console.WriteLine("Press <Enter> to stop the service.");
Console.ReadLine();
}
}
}
尝试使用WcfTestClient.exe调用SayHello方法会导致以下错误:
无法获取组件SelfHost.PerSession的范围。这是最多的 可能是自定义IScopeAccessor中的错误,或者您正在尝试 访问范围之外的作用域组件(如每个Web请求 Web请求之外的组件等)
使用PerWcfSession组件的正确方法是什么?
答案 0 :(得分:2)
所以我错过了一些事情:
ServiceContract需要设置SessionMode属性
[ServiceContract(SessionMode = SessionMode.Required)]
同样,ServiceBehavior需要设置InstanceContextMode
[ServiceBehavior(IncludeExceptionDetailInFaults = true, InstanceContextMode = InstanceContextMode.PerSession)]
最后,服务注册需要从默认(Singleton)更改Lifestyle,以便为每个请求重新创建(并重新评估依赖项) - Transient或PerWcfSession可以工作。
另外,因为我们需要一个会话,所以绑定需要从basicHttpBinding更改为支持会话的内容:
Component.For<IHelloWorldService>()
.ImplementedBy<HelloWorldService>()
.LifestyleTransient()
.AsWcfService(
new DefaultServiceModel()
.AddBaseAddresses(baseAddress)
.AddEndpoints(WcfEndpoint.BoundTo(new WSHttpBinding()).At("myBinding"))
.PublishMetadata(o => o.EnableHttpGet())
)
这使得最终代码看起来像这样:
using System;
using System.Collections.Generic;
using System.Linq;
using System.ServiceModel;
using Castle.Facilities.WcfIntegration;
using Castle.MicroKernel.Registration;
using Castle.Windsor;
namespace SelfHost
{
[ServiceContract(SessionMode = SessionMode.Required)]
public interface IHelloWorldService
{
[OperationContract]
string SayHello(string name);
}
[ServiceBehavior(IncludeExceptionDetailInFaults = true, InstanceContextMode = InstanceContextMode.PerSession)]
public class HelloWorldService : IHelloWorldService
{
private readonly PerSession _perSession;
public HelloWorldService(PerSession perSession)
{
_perSession = perSession;
}
public string SayHello(string name)
{
return string.Format("Hello, {0} {1}", name, _perSession.Info());
}
}
public class PerSession
{
private readonly string _now;
public PerSession()
{
_now = DateTime.Now.ToString();
}
public string Info()
{
return _now;
}
}
internal class Program
{
private static void Main(string[] args)
{
Uri baseAddress = new Uri("http://localhost:8080/hello");
var container = new WindsorContainer();
container.AddFacility<WcfFacility>();
container.Register(
Component.For<PerSession>().LifeStyle.PerWebRequest,
Component.For<IHelloWorldService>()
.ImplementedBy<HelloWorldService>()
.LifeStyle.PerWebRequest
.AsWcfService(
new DefaultServiceModel()
.AddBaseAddresses(baseAddress)
.AddEndpoints(WcfEndpoint.BoundTo(new WSHttpBinding()).At("myBinding"))
.PublishMetadata(o => o.EnableHttpGet())
)
);
Console.WriteLine("The service is ready at {0}", baseAddress);
Console.WriteLine("Press <Enter> to stop the service.");
Console.ReadLine();
}
}
}