c# - WCF:读取 XML 数据时已超出最大数组长度配额 (16384)

Question

我知道这个问题已经被问过很多次了，相信我，半个下午我一直在查看并尝试其中的许多问题，但仍然无法解决这个问题。

我正在尝试通过 Web 服务提交一些表单内容(也可以包括附件)，但是当我尝试附加除小文件以外的任何内容时，总是出现以下错误。

我的完整错误是:

The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://tempuri.org/:scChildForm. The InnerException message was 'There was an error deserializing the object of type MashForms.Models.SCChildrenForm. The maximum array length quota (16384) has been exceeded while reading XML data. This quota may be increased by changing the MaxArrayLength property on the XmlDictionaryReaderQuotas object used when creating the XML reader. Line 1, position 41713.'. Please see InnerException for more details.

无论我如何尝试在 WCF 服务和 Web 客户端的 web.config 中重写该值，它仍将其报告为最大值和随后的错误。

WCF Web.Config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <system.web>
    <compilation debug="true" targetFramework="4.0" />
        <!--<httpRuntime maxRequestLength="409600" executionTimeout="300" />-->
  </system.web>
  <connectionStrings>
    <add name="MashFormsContext" connectionString="Data Source=ServerName;Initial Catalog=MashFormsDev;Persist Security Info=True;User ID=UserName;Password=Password" providerName="System.Data.SqlClient" />
  </connectionStrings>
  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior>
                    <dataContractSerializer maxItemsInObjectGraph="2147483647" />
                    <serviceTimeouts transactionTimeout="05:05:00" />
                    <serviceThrottling maxConcurrentCalls="500" maxConcurrentSessions="500" maxConcurrentInstances="2147483647" />
          <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
          <serviceMetadata httpGetEnabled="true"/>
          <!--<serviceMetadata 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="true" />
          <!--<StructureMapServiceBehavior />-->
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" aspNetCompatibilityEnabled="false" />
    <extensions>
      <behaviorExtensions>
      </behaviorExtensions>
    </extensions>

        <bindings>
            <basicHttpBinding>
                <binding name="BasicHttpBinding_IInsertNewForm" closeTimeout="00:01:00"
          openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
          allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
          maxBufferSize="2147483647" maxBufferPoolSize="524288" maxReceivedMessageSize="2147483647"
          messageEncoding="Text" textEncoding="utf-8" transferMode="Streamed"
          useDefaultWebProxy="true">
                    <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647"
            maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"/>
                    <security mode="None">
                        <transport clientCredentialType="None" proxyCredentialType="None"
              realm="" />
                        <message clientCredentialType="UserName" algorithmSuite="Default" />
                    </security>
                </binding>
            </basicHttpBinding>
        </bindings>

    </system.serviceModel>
  <system.webServer>
    <modules runAllManagedModulesForAllRequests="true" />
        <validation validateIntegratedModeConfiguration="false" />
  </system.webServer>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

我的网络客户端Web.Config

<?xml version="1.0" encoding="utf-8"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=152368
  -->
<configuration>
  <configSections>
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=4.4.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
  </configSections>
  <connectionStrings>
    <add name="DefaultConnection" providerName="System.Data.SqlClient" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=aspnet-PublicForms-20121112151426;Integrated Security=SSPI" />
  </connectionStrings>
  <appSettings>
    <add key="webpages:Version" value="2.0.0.0" />
    <add key="webpages:Enabled" value="false" />
    <add key="PreserveLoginUrl" value="true" />
    <add key="ClientValidationEnabled" value="true" />
    <add key="UnobtrusiveJavaScriptEnabled" value="true" />
  </appSettings>
  <system.web>
    <compilation debug="true" targetFramework="4.0" />
    <authentication mode="Forms">
      <forms loginUrl="~/Account/Login" timeout="2880" />
    </authentication>
    <pages>
      <namespaces>
        <add namespace="System.Web.Helpers" />
        <add namespace="System.Web.Mvc" />
        <add namespace="System.Web.Mvc.Ajax" />
        <add namespace="System.Web.Mvc.Html" />
        <add namespace="System.Web.Optimization" />
        <add namespace="System.Web.Routing" />
        <add namespace="System.Web.WebPages" />
      </namespaces>
    </pages>

    <sessionState mode="InProc" customProvider="DefaultSessionProvider">
      <providers>
        <add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" />
      </providers>
    </sessionState>
  </system.web>
  <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <modules runAllManagedModulesForAllRequests="true" />
    <handlers>
      <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
      <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
      <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
      <add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" />
      <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness64" responseBufferLimit="0" />
      <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
    </handlers>
  </system.webServer>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="2.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-2.0.0.0" newVersion="2.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Data" publicKeyToken="b77a5c561934e089" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
  <entityFramework>
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
      <parameters>
        <parameter value="v11.0" />
      </parameters>
    </defaultConnectionFactory>
  </entityFramework>
  <system.serviceModel>

    <bindings>
      <basicHttpBinding>
        <binding name="BasicHttpBinding_IInsertNewForm" closeTimeout="00:01:00"
          openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
          allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
          maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647"
          messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
          useDefaultWebProxy="true">
          <readerQuotas maxDepth="32" maxStringContentLength="2147483647" maxArrayLength="2147483647"
            maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <security mode="None">
            <transport clientCredentialType="None" proxyCredentialType="None"
              realm="" />
            <message clientCredentialType="UserName" algorithmSuite="Default" />
          </security>
        </binding>
      </basicHttpBinding>
    </bindings>
    <client>
      <endpoint address="http://localhost:54070/MashPortalService/InsertNewForm.svc"
        binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IInsertNewForm"
        contract="InsertNewForm.IInsertNewForm" name="BasicHttpBinding_IInsertNewForm" />
    </client>
  </system.serviceModel>
</configuration>

我的 WCF 服务将接受非常小的文件，但不能接受更大的文件，甚至不能接受 28k。

作为附加说明，当我最初将服务引用添加到 WebClient 中时，它并没有默认为较大的值，它是这样创建的:

默认网络客户端Web.config

  <system.serviceModel>
    <bindings>
      <basicHttpBinding>
        <binding name="BasicHttpBinding_IInsertNewForm" closeTimeout="00:01:00"
          openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
          allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
          maxBufferSize="65536" maxBufferPoolSize="524288" maxReceivedMessageSize="65536"
          messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
          useDefaultWebProxy="true">
          <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"
            maxBytesPerRead="4096" maxNameTableCharCount="16384" />
          <security mode="None">
            <transport clientCredentialType="None" proxyCredentialType="None"
              realm="" />
            <message clientCredentialType="UserName" algorithmSuite="Default" />
          </security>
        </binding>
      </basicHttpBinding>
    </bindings>
    <client>
      <endpoint address="http://localhost:54070/MashPortalService/InsertNewForm.svc"
        binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IInsertNewForm"
        contract="InsertNewForm.IInsertNewForm" name="BasicHttpBinding_IInsertNewForm" />
    </client>
  </system.serviceModel>

更新 1:对 Eugene 的回应

using System.ServiceModel;
using MashForms.Models;

namespace MashPortalService
{
    [ServiceContract]
    public interface IInsertNewForm
    {
        //Testing operations
        [OperationContract]
        string TestReturnInput(string s);
        [OperationContract]
        bool Ping();

        //Child
        [OperationContract]
        int InsertFormChildGettingIdBack(SCChildrenForm scChildForm);
    }
}

更新 2:按照建议添加服务端点

</bindings>
        <services>
            <service name="MashPortalService">
                <endpoint address="http://localhost:54070/MashPortalService/InsertNewForm.svc" binding="basicHttpBinding"
                                    bindingConfiguration="BasicHttpBinding_IInsertNewForm" contract="InsertNewForm.IInsertNewForm" />
            </service>
        </services>

但是我还是有同样的错误。

Answer 1

感谢所有建议。不幸的是，这些建议都没有解决这个问题，它似乎仍然从某个地方获取了一个覆盖它的值。

我已经通过 customBinding 路线成功地处理了更大的文件。

<system.serviceModel>
    <behaviors>
        <serviceBehaviors>
            <behavior name="MashPortalService.MyServiceBehaviour">
                <dataContractSerializer maxItemsInObjectGraph="2147483647"  />
                <serviceTimeouts transactionTimeout="05:05:00" />
                <serviceThrottling maxConcurrentCalls="500" maxConcurrentSessions="500" maxConcurrentInstances="2147483647" />
                <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
                <serviceMetadata httpGetEnabled="true"/>
                <!--<serviceMetadata 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="true" />
                <!--<StructureMapServiceBehavior />-->
            </behavior>
        </serviceBehaviors>
    </behaviors>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" aspNetCompatibilityEnabled="false" />
    <extensions>
        <behaviorExtensions>
        </behaviorExtensions>
    </extensions>
    <bindings>
        <customBinding>
            <binding name="MashCustomBinding"
                    closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00">
                <textMessageEncoding messageVersion="Soap11" maxReadPoolSize="2147483647" maxWritePoolSize="2147483647">
                    <readerQuotas maxArrayLength="2147483647" maxStringContentLength="2147483647" />
                </textMessageEncoding>
                <httpTransport transferMode="Streamed" maxReceivedMessageSize="2147483647"/>
            </binding>
        </customBinding>
    </bindings>
    <services>
        <service behaviorConfiguration="MashPortalService.MyServiceBehaviour" name="MashPortalService.InsertNewForm">
            <endpoint address="" binding="customBinding"
                                bindingConfiguration="MashCustomBinding" contract="MashPortalService.IInsertNewForm" />
        </service>
    </services>
</system.serviceModel>