Question

我在使用自定义端点连接到WCF服务时遇到问题。

我有excel addin通过WCF服务与数据库通信。我创建了服务，一切正常。 WCF服务在我的Excel插件项目的ServiceReference中引用。

但是现在，我希望有一个选项来设置运行WCF服务的服务器。所以我让用户输入服务URI，我正在尝试使用绑定和EndpointAdrress创建ServiceClient。但是，如果我使用服务器的EndPointAddress创建ServiceClient，则即使服务器地址与ServiceReference相同，也会引发EndpointNotFoundException。

我认为app.config和web.config文件可能存在问题，但我不知道在哪里。

App.Config（Excel Addin）

<system.serviceModel>
    <bindings>
        <basicHttpBinding>
            <binding name="BasicHttpBinding_ICampaignService" />
        </basicHttpBinding>
    </bindings>
    <client>
        <endpoint address="http://localhost:58375/CampaignService.svc"
            binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_ICampaignService"
            contract="CampaignDatabaseService.ICampaignService" name="BasicHttpBinding_ICampaignService" />
    </client>
    <behaviors>
        <serviceBehaviors>
            <behavior name="">
                <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
                <serviceDebug includeExceptionDetailInFaults="false" />
            </behavior>
        </serviceBehaviors>
    </behaviors>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true"
        multipleSiteBindingsEnabled="true" />
</system.serviceModel>

Web.Config（WCF服务）

<?xml version="1.0"?>
<configuration>
  <connectionStrings>
<add name="CampaignDatabase" connectionString="Data Source=dev\sql14;Initial Catalog=TSQL2012;Integrated Security=True;User id=addin_test;Password=testpassword;"/>
  </connectionStrings>
  <appSettings>
     <add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
   </appSettings>
  <system.web>
    <compilation debug="true" targetFramework="4.5" />
    <httpRuntime targetFramework="4.5"/>
  </system.web>
   <system.serviceModel>
     <behaviors>
       <serviceBehaviors>
      <behavior>
      <!-- To avoid disclosing metadata information, set the values below to false before deployment -->
      <serviceMetadata httpGetEnabled="true" httpsGetEnabled="true"/>
      <!-- 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="false"/>
    </behavior>
  </serviceBehaviors>
</behaviors>
<protocolMapping>
    <add binding="basicHttpBinding" scheme="http" />
</protocolMapping>    
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
  <system.webServer>
   <modules runAllManagedModulesForAllRequests="true"/>
    <!--
    To browse web app root directory during debugging, set the value below to true.
    Set to false before deployment to avoid disclosing web app folder information.
     -->
  <directoryBrowse enabled="true"/>
 </system.webServer>

 </configuration>

这就是我创建ServiceClient的方式

 EndpointAddress serviceAddress = new EndpointAddress(Properties.Settings.Default.serviceAddress);
 BasicHttpBinding binding = new BasicHttpBinding(BasicHttpSecurityMode.None);
 CampaignServiceClient connector = new CampaignServiceClient(binding,serviceAddress);

感谢您的意见

Answer 1

如果我想在运行时更改地址，我将使用channelFactory而不是生成的serviceClient。 Becouse从web.config生成一个提取思想，这在运行时更改是不好的。

像这样的东西。请更改为真实的设置。

//define binding 
BasicHttpBinding myBinding = new BasicHttpBinding();

//define endpoint url (where service is deployed)
EndpointAddress myEndpoint = new EndpointAddress("http://localhost:58375/CampaignService.svc"); //change to real endpoint 

//Use channel factory instead of generated one
ChannelFactory<ICampaignService> myChannelFactory = new ChannelFactory<ICampaignService>(myBinding, myEndpoint); //Change to you WCF interface
ICampaignService myServiceClient = myChannelFactory.CreateChannel();

//and call it            
var result = myServiceClient.Add(1,1); //input to your method
//other methods

((IClientChannel)myServiceClient).Close();
myChannelFactory.Close();

WCF在运行时异常时更改地址

1 个答案: