WCF errors and handling records

1. error message: {"HTTP cannot register URL http: // +/Temporary_Listen_Addresses/a4db1461-55c6-4ce5-be25-f41b88877434/because another application is using TCP port 80. "}

Environment: When duplex protocols are used. Call the callback method of the client.

Solution: first, change the service of port 80 of the client to another port.

The second is to set the ClientBaseAddress in the client code,

The Code is as follows:

Code

DumplexService. IDuplexSampleCallback clent = new ClientCallback ();

DumplexService. DuplexSampleClient duplexClient = new WebTest. DumplexService. DuplexSampleClient (new System. ServiceModel. InstanceContext (clent ));

WSDualHttpBinding ws = (WSDualHttpBinding) duplexClient. Endpoint. Binding;
Ws. ClientBaseAddress = new Uri ("http: // localhost: 8212 /");

Third, set in the configuration file

Code

<WsDualHttpBinding>
<Binding name = "MyWCFStudy. MyDuplexSet" clientBaseAddress = http: // localhost: 8212/>
<Security mode = "Message"> </security>
</Binding>
</WsDualHttpBinding>

2. error message: this operation deadlocks because a reply cannot be received before the current email is processed. If you want to allow unordered message processing, you can specify multiple concurrencymodes on ServiceBehaviorAttribute.

Production Environment: Duplex protocol.

Solution: Specify the ConcurrencyMode of ServiceBehaviorAttribute as Multiple in the service-side implementation contract class.

Add [ServiceBehavior (ConcurrencyMode = ConcurrencyMode. Multiple)] to the class name.