通过反射WSHttpBinding在WCF中设置ReaderQuotas.MaxStringContentLength

Question

当我不知道绑定的类型时，我需要使用WCF，它可以是BasicHttpBinding或WSHttpBinding。我创建了一个简单的解决方案，在没有反射的情况下进行测试，并且它可以工作。但是当我尝试通过反射在另一个项目中使用它时，当我使用WSHttpBinding时，我得到了这个异常(西班牙语)：

{System.Xml.XmlException: Se superó la cuota de longitud del contenido de cadena (8192) al leer los datos XML. Esta cuota se puede aumentar cambiando la propiedad MaxStringContentLength en el objeto XmlDictionaryReaderQuotas que se usa para crear el lector XML. Línea 1, posición 10572.
   en System.Xml.XmlExceptionHelper.ThrowXmlException(XmlDictionaryReader reader, String res, String arg1, String arg2, String arg3)
   en System.Xml.XmlDictionaryReader.ReadContentAsString(Int32 maxStringContentLength)
   en System.Xml.XmlBaseReader.ReadContentAsString()
   en System.Xml.XmlBaseReader.ReadElementContentAsString()
   en System.ServiceModel.Dispatcher.PrimitiveOperationFormatter.PartInfo.ReadValue(XmlDictionaryReader reader)
   en System.ServiceModel.Dispatcher.PrimitiveOperationFormatter.DeserializeParameter(XmlDictionaryReader reader, PartInfo part)
   en System.ServiceModel.Dispatcher.PrimitiveOperationFormatter.DeserializeResponse(XmlDictionaryReader reader, Object[] parameters)
   en System.ServiceModel.Dispatcher.PrimitiveOperationFormatter.DeserializeReply(Message message, Object[] parameters)}

在BasicHttpBinding中它工作正常，(当我使用这个绑定配置WCF时)

我把这段代码放在WsHttpBinding服务器的web.config中

<?xml version="1.0"?>
<configuration>
  <system.web>
    <compilation debug="true" targetFramework="4.0" />
  </system.web>
  <system.serviceModel>
    <behaviors>
      <serviceBehaviors >
        <behavior name="ServiceBehaviors"  >
          <!-- To avoid disclosing metadata information, 
          set the value below to false and remove the metadata endpoint above before deployment -->
          <serviceMetadata httpGetEnabled="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" />
          <serviceCredentials>
            <serviceCertificate findValue="localhost" x509FindType="FindBySubjectName"
                             storeLocation="LocalMachine" storeName="My" />
            <userNameAuthentication userNamePasswordValidationMode="Custom"
             customUserNamePasswordValidatorType="TestService.CustomValidator, TestService" />
          </serviceCredentials>
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <bindings>
      <wsHttpBinding>
        <binding closeTimeout="00:10:00" openTimeout="00:10:00" sendTimeout="00:10:00"
          maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647">
          <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647"
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <security mode="Message">
            <transport clientCredentialType="None" />
            <message clientCredentialType="None" />
          </security>
        </binding>
      </wsHttpBinding>
    </bindings>
    <services>
      <service behaviorConfiguration="ServiceBehaviors" name="TestService.Service1">
        <endpoint binding="wsHttpBinding" contract="TestService.IService1" />
        <endpoint address="mex" binding="mexHttpsBinding" contract="IMetadataExchange" />
      </service>
    </services>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>
</configuration>

这在没有反射的情况下工作，为了测试这个服务器，我在app.config客户机中放了这个简单的代码：

<bindings>
            <wsHttpBinding>
                <binding name="WSHttpBinding_IService1">
                    <readerQuotas maxStringContentLength="2147483647" />
                    <security>
                        <message clientCredentialType="None" />
                    </security>
                </binding>
            </wsHttpBinding>
        </bindings>

但是我不能把这个放到我的另一个项目中，因为WCF可能会改变。我用C#编写了以下代码来配置动态web服务，但它不起作用：

            PropertyInfo channelFactoryProperty = proxyInstance.GetType().GetProperty("ChannelFactory");

            if (channelFactoryProperty == null)
            {
                throw new InvalidOperationException("There is no ''ChannelFactory'' property on the DomainClient.");
            }
            ChannelFactory factory = (ChannelFactory)channelFactoryProperty.GetValue(proxyInstance, null);

            factory.Endpoint.Binding.SendTimeout = new TimeSpan(0, 10, 0);
            factory.Endpoint.Binding.OpenTimeout = new TimeSpan(0, 10, 0);
            factory.Endpoint.Binding.ReceiveTimeout = new TimeSpan(0, 10, 0);
            factory.Endpoint.Binding.CloseTimeout = new TimeSpan(0, 10, 0);

            PropertyInfo channelFactoryPropert = proxyInstance.GetType().GetProperty("InnerChannel");
            System.ServiceModel.IClientChannel factor = (System.ServiceModel.IClientChannel)channelFactoryPropert.GetValue(proxyInstance, null);
            factor.OperationTimeout.Add(new TimeSpan(0, 10, 0));
            factor.OperationTimeout = new TimeSpan(0, 10, 0);

            switch ((factory.Endpoint.Binding).GetType().ToString())
            {
                case "System.ServiceModel.BasicHttpBinding":
                    BasicHttpBinding _basicBinding = (BasicHttpBinding)factory.Endpoint.Binding;
                    _basicBinding.MaxBufferPoolSize = 2147483647;
                    _basicBinding.MaxBufferSize = 2147483647;
                    _basicBinding.MaxReceivedMessageSize = 2147483647;
                    _basicBinding.OpenTimeout = new TimeSpan(0, 10, 0);
                    break;

                case "System.ServiceModel.WSHttpBinding":
                    WSHttpBinding _wsBinding = (WSHttpBinding)factory.Endpoint.Binding;                     
                    _wsBinding.MaxBufferPoolSize = 2147483647;
                    _wsBinding.MaxReceivedMessageSize = 2147483647;
                    _wsBinding.OpenTimeout = new TimeSpan(0, 10, 0);
                    _wsBinding.ReaderQuotas.MaxStringContentLength = 2147483647;


                    XmlDictionaryReaderQuotas _wsBindingRQ = (XmlDictionaryReaderQuotas)_wsBinding.ReaderQuotas;
                    _wsBindingRQ.MaxArrayLength = 2147483647;
                    _wsBindingRQ.MaxBytesPerRead = 2147483647;

                    _wsBindingRQ.MaxNameTableCharCount = 2147483647;
                    _wsBindingRQ.MaxStringContentLength = 2147483647;
                    break;
            } 

我不知道在这个项目的app.config中用C#配置什么代码，它是空的。

Answer 1

我只需要在创建object的实例之前放入这段代码。上面的代码(在我的问题中)没问题。compilerResults.CompiledAssembly.CreateInstance(proxyType.Name，= System.Reflection.BindingFlags.CreateInstance，System.Globalization.CultureInfo.CurrentCulture，，proxyInstance null，新空值{ object[]，serviceEndpoint.Binding，serviceEndpoint.Address }，new null)；