如何在从C#调用WCF时增加MaxReceivedMessageSize

本文关键字：WCF 增加 MaxReceivedMessageSize 调用 | 更新日期: 2023-09-27 17:50:25

可能重复：
已超过传入消息的最大消息大小配额(65536(

我正在使用WCF进行文件上传和下载。上传是成功的，但当我下载一个大文件时，我发现这个错误

错误：传入邮件的最大邮件大小配额(65536(已超过。要增加配额，请使用相应绑定元素的MaxReceivedMessageSize属性。

我的Service.config文件包含以下代码。

<system.web>
    <compilation debug="true" />
    <httpRuntime executionTimeout="4800" maxRequestLength="2147483647" />

  </system.web>
  <system.serviceModel>
    <bindings>
      <basicHttpBinding>
        <binding maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" maxBufferPoolSize="524288">
          <readerQuotas maxDepth="32" maxStringContentLength="2147483647" 
            maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"  />
        </binding>
      </basicHttpBinding>
      <!--<webHttpBinding>
        <binding maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" />
      </webHttpBinding>-->
    </bindings>
    <services>
      <service name="WITSService.WITSService">
        <clear />
        <endpoint binding="basicHttpBinding" contract="WITSService.WITSService" />
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <serviceMetadata httpGetEnabled="true"/>
          <serviceDebug includeExceptionDetailInFaults="false"/>
          <dataContractSerializer maxItemsInObjectGraph="2147483646"/>
        </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <behavior name="myEndPointBehavior">
          <dataContractSerializer maxItemsInObjectGraph="2147483646"/>
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>

有人能帮我增加MaxReceivedMessageSize 吗

更改web.config中的customBinding以使用更大的默认值。我选择了2MB，因为它是一个合理的尺寸。当然，将其设置为2GB(正如您的代码所示(是可行的，但它确实会让您更容易受到攻击。选择一个比你最大的请求大但又不太大的尺寸。

检查此项：在带有WCF 的Silverlight中使用大型消息请求

<system.serviceModel>
   <behaviors>
     <serviceBehaviors>
       <behavior name="TestLargeWCF.Web.MyServiceBehavior">
         <serviceMetadata httpGetEnabled="true"/>
         <serviceDebug includeExceptionDetailInFaults="false"/>
       </behavior>
     </serviceBehaviors>
   </behaviors>
   <bindings>
     <customBinding>
       <binding name="customBinding0">
         <binaryMessageEncoding />
         <!-- Start change -->
         <httpTransport maxReceivedMessageSize="2097152"
                        maxBufferSize="2097152"
                        maxBufferPoolSize="2097152"/>
         <!-- Stop change -->
       </binding>
     </customBinding>
   </bindings>
   <serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
   <services>
     <service behaviorConfiguration="Web.MyServiceBehavior" name="TestLargeWCF.Web.MyService">
       <endpoint address=""
                binding="customBinding"
                bindingConfiguration="customBinding0"
                contract="TestLargeWCF.Web.MyService"/>
       <endpoint address="mex"
                binding="mexHttpBinding"
                contract="IMetadataExchange"/>
     </service>
   </services>
 </system.serviceModel>

如何在从C#调用WCF时增加MaxReceivedMessageSize

您需要在客户端配置中设置basicHttpBinding->MaxReceivedMessageSize。

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