wcf - 为什么wsHttpBinding不支持流传输？

Question

为什么wsHttpBinding不支持流传输？

编辑:为了测试我对netTcpBinding的评论，我尝试了以下代码，它给出了运行时错误:

<netTcpBinding >
        <binding name="myBinding"  transferMode="Streamed">          
          <reliableSession enabled="true"/>
        </binding>
</netTcpBinding>

运行时异常:

Unhandled Exception: System.InvalidOperationException: Transfer mode Streamed is
 not supported by ReliableSessionBindingElement.
   at System.ServiceModel.Channels.ReliableSessionBindingElement.VerifyTransport
Mode(BindingContext context)

如果删除了<reliableSession enabled="true"/>，则该代码有效。

Answer 1

WsHttpBinding doesn't support streaming due to the reliable messaging protocol (WS-RM), which requires that messages are buffered on either end.

如所述here ...有关WS-RM的更多信息。

还有另一个here帖子，提供了无法进行流播的原因以及上述原因的原因...

This is because WS-RM needs to apply signing/checksums to the whole message as a unity, etc; and this is not possible when streamed transferMode, only with buffered transferMode...

此外，netTcpBinding实际上出于可靠性目的而使用WS-RM。