我正在开发与计重连接的WCF服务。当权重发生变化时,我们希望向所有连接的客户端发送消息。由于一个计量器只能连接一个客户端,所以我开发了工作流框架,它通过wsDualHttpBinding和回调与客户端进行通信。
此解决方案有效,但在长时间(1-2天)后WCF服务停止发送回调。我知道我的服务是有效的,因为我有记录器--但是我的客户不会收到回调。我的服务也不会抛出异常。
这是我的服务伪多代码
[ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Reentrant, InstanceContextMode = InstanceContextMode.PerSession)]
public sealed class WeightbridgeService : IWeightbridgeService, IDisposable
public WeightbridgeService()
{
this.callback = OperationContext.Current.GetCallbackChannel<IWeightbridgeServiceCallback>();
weighbridge.WeightChanged += WeightChangedEventHandler;
timer.Elapsed += TimerOnElapsed;
timer.Start();
}
private void TimerOnElapsed(object sender, ElapsedEventArgs elapsedEventArgs)
{
timer.Stop();
this.callback.SendWeightData(this.weightData);
timer.Start();
}和配置
<bindings>
<wsDualHttpBinding>
<binding name="longTimeoutBinding" receiveTimeout="00:45:00" sendTimeout="00:45:00" openTimeout="00:45:00" closeTimeout="00:45:00" >
<reliableSession inactivityTimeout="00:45:00" />
<security mode="None"/>
</binding>
</wsDualHttpBinding>
</bindings>你能帮帮我吗?我哪里做错了?我找不到解决方案。
发布于 2017-02-08 05:04:17
可以在服务配置文件中将receiveTimeout属性添加到绑定中。虽然它的名称是receiveTimeout,但它是服务器用于关闭“非活动”客户端连接的值(时间量)。
示例:
<binding name="wsDualHttpBinding"
closeTimeout="00:01:00"
openTimeout="00:01:00"
receiveTimeout="02:00:00"> <-- this is the amount of time to wait before droppin client connectionhttps://stackoverflow.com/questions/36909372
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