定义的ServiceThrottlingAttribute特性继承了Attribute，并实现了IServiceBehavior接口。在特性内，则使用了ServiceThrottlingBehavior类，以设置限流的相关值。如果要配置服务的限流值，就可以应用该特性，例如：
[ServiceThrottling(12, 34, 56)]则输出结果为：
class MyService : IMyContract,IDisposable
{
public void MyMethod( )
{
ChannelDispatcher dispatcher = OperationContext.Current.Host.ChannelDispatchers[0] as ChannelDispatcher;
ServiceThrottle serviceThrottle = dispatcher.ServiceThrottle;
Trace.WriteLine("MaxConcurrentCalls = " + serviceThrottle.MaxConcurrentCalls);
Trace.WriteLine("MaxSessions = " + serviceThrottle.MaxConcurrentSessions);
Trace.WriteLine("MaxInstances = " + serviceThrottle.MaxConcurrentInstances);
}
}
MaxConcurrentCalls = 12
MaxSessions = 56
MaxInstances = 34
