关于c#：WCF使用TCP托管多个终结点


WCF hosting mutiple endpoints with TCP

我在WCF上托管多个终结点时遇到问题，这给了我错误：

System.ServiceModel.AddressAlreadyInUseException: There is already a
listener on IP endpoint
0.0.0.0:808. This could happen if there is another application already listening on this endpoint or if you have multiple service endpoints
in your service host with the same IP endpoint but with incompatible
binding configurations. ---> System.Net.Sockets.SocketException: Only
one usage of each socket address (protocol/network address/port) is
normally permitted at system.Net.Sockets.Socket.DoBind(EndPoint
endPointSnapshot, SocketAddress socketAddress)

我的App.config

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
    <?xml version="1.0" encoding="utf-8"?>
    <configuration>
     
       
       
      </appSettings>
      <system.web>
        <compilation debug="true" />
        <membership defaultProvider="ClientAuthenticationMembershipProvider">
          <providers>
           
          </providers>
        </membership>
        <roleManager defaultProvider="ClientRoleProvider" enabled="true">
          <providers>
           
          </providers>
        </roleManager>
      </system.web>

      <system.serviceModel>
        <diagnostics wmiProviderEnabled="true">
          <messageLogging logMalformedMessages="true" logMessagesAtTransportLevel="true" />
        </diagnostics>

        <bindings>
          <netTcpBinding>
            <binding name="TCPDefault" portSharingEnabled="true" />
          </netTcpBinding>
        </bindings>
        <services>
         <!--Service1-->
          <service name="WCFLibrary.CalculatorService" behaviorConfiguration="DebugBehavior">
            <host>
              <baseAddresses>
               

              </baseAddresses>
            </host>
            <endpoint address="" binding="netTcpBinding" bindingConfiguration="TCPDefault"
              name="ServiceTCPEndPoint" contract="WCFLibrary.ICalculator">
              <identity>
                <dns value="localhost" />
              </identity>
            </endpoint>
           <endpoint address="mex" binding="mexTcpBinding" name="ServiceMexEndPoint"
              contract="IMetadataExchange" />
         </service>
         <!--Service2-->
          <service name="WCFLibrary.MyWorldService" behaviorConfiguration="DebugBehavior">
            <host>
              <baseAddresses>
               

              </baseAddresses>          
            </host>
            <endpoint address="" binding="netTcpBinding" bindingConfiguration="TCPDefault"
          name="WCFLibrary.MyWorldService" contract="WCFLibrary.IMyWorld">
              <identity>
                <dns value="localhost" />
              </identity>
            </endpoint>
            <endpoint address="mex" binding="mexTcpBinding" name="ServiceMexEndPoint"
               contract="IMetadataExchange" />          
          </service>
        </services>
        <behaviors>
          <serviceBehaviors>
            <behavior name="DebugBehavior">

              <serviceMetadata/>

              <serviceDebug includeExceptionDetailInFaults="True" />
            </behavior>
          </serviceBehaviors>
        </behaviors>
      </system.serviceModel>
    </configuration>

I'm having separate services with callbacks. Please advise.

**Modified App.config**

<?xml version="1.0" encoding="utf-8"?>
<configuration>
 
   
   
  </appSettings>
  <system.web>
    <compilation debug="true" />
    <membership defaultProvider="ClientAuthenticationMembershipProvider">
      <providers>
       
      </providers>
    </membership>
    <roleManager defaultProvider="ClientRoleProvider" enabled="true">
      <providers>
       
      </providers>
    </roleManager>
  </system.web>
  <!-- When deploying the service library project, the content of the config file must be added to the host's
  app.config file. System.Configuration does not support config files for libraries. -->
  <system.serviceModel>
    <diagnostics wmiProviderEnabled="true">
      <messageLogging logMalformedMessages="true" logMessagesAtTransportLevel="true" />
    </diagnostics>

    <bindings>
      <netTcpBinding>
        <binding name="TCPDefault" portSharingEnabled="true" />
      </netTcpBinding>
    </bindings>
    <services>
     <!--Service1-->
      <service name="WCFLibrary.CalculatorService" behaviorConfiguration="DebugBehavior">
        <host>
          <baseAddresses>
           

          </baseAddresses>
        </host>
        <endpoint address="" binding="netTcpBinding" bindingConfiguration="TCPDefault"
          name="ServiceTCPEndPoint" contract="WCFLibrary.ICalculator">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
       <endpoint address="net.tcp://localhost:8002/CalculatorService/mex" binding="mexTcpBinding" name="ServiceMexEndPoint"
          contract="IMetadataExchange" />
     </service>
     <!--Service2-->
      <service name="WCFLibrary.MyWorldService" behaviorConfiguration="DebugBehavior">
        <host>
          <baseAddresses>
            <!---->

          </baseAddresses>          
        </host>
        <endpoint address="net.tcp://localhost/MyWorldService" binding="netTcpBinding" bindingConfiguration="TCPDefault"
      name="WCFLibrary.MyWorldService" contract="WCFLibrary.IMyWorld">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="net.tcp://localhost:8001/MyWorldService/mex" binding="mexTcpBinding" name="ServiceMexEndPoint"
           contract="IMetadataExchange" />          
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior name="DebugBehavior">
          <!-- To avoid disclosing metadata information,
          set the values below to false before deployment -->
          <!--<serviceMetadata httpGetEnabled="False" httpsGetEnabled="False" />-->
          <serviceMetadata/>
          <!-- To receive exception details in faults for debugging purposes,
          set the value below to true.  Set to false before deployment
          to avoid disclosing exception information -->
          <serviceDebug includeExceptionDetailInFaults="True" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>
</configuration>

WCF：

http://pastebin.com/gHHRKeYZ

WindowsService：

http://pastebin.com/kjM3iRYj

看来是您的MEX端点存在问题-两个服务之间它们是相同的。尝试给他们提供不同的地址，以查看是否可以解决问题。

相关讨论

对于我来说，我已经更新了.net框架，并且收到此错误。我通过删除配置文件

中的listenBacklog和maxConnections属性来解决此错误

这是解决我问题的解决方案。

我的第一个猜测是，您有另一个在某个端口上侦听的应用程序，尝试将端口更改为这样的内容
在两个

上尝试另一个端口

1
 

如果成功，请尝试使用此命令

列出所有应用程序和监听端口

1
netstat -an
相关讨论