Question

我在 WCF 服务中定义了一个方法，该方法接受 byte [] 作为参数。当我调用函数时，它给出了一个错误 Reference.cs 中的An exception of type 'System.OutOfMemoryException' occurred in System.ServiceModel.ni.dll but was not handled in user code。

这是我的代码

svc.GetDataUsingDataContractCompleted += new EventHandler<GetDataUsingDataContractCompletedEventArgs>(svc_GetDataUsingDataContractCompleted);
svc.GetDataUsingDataContractAsync(contents, "AllImagesZip.zip");

内容是byte []的对象。我有 Web.config 文件。

<?xml version="1.0"?>
<configuration>
<appSettings>
   <add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
</appSettings>
<system.web>
  <compilation debug="true" targetFramework="4.5" />
  <httpRuntime targetFramework="4.5" executionTimeout="300" maxRequestLength="409600"/>
</system.web>
<system.serviceModel>
<bindings>
  <basicHttpBinding>
    <!--<binding maxReceivedMessageSize="2147483647" maxBufferPoolSize="2147483647" receiveTimeout="00:10:00" closeTimeout="00:10:00">
      <security mode="None" />
    </binding>-->
  <binding name="basicHttpsBinding" closeTimeout="01:01:00"
  openTimeout="01:01:00" receiveTimeout="01:10:00" sendTimeout="01:01:00"
  allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
  maxBufferSize="2147483646" maxBufferPoolSize="2147483646" maxReceivedMessageSize="2147483646"
  messageEncoding="Mtom" textEncoding="utf-8" transferMode="StreamedRequest"
  useDefaultWebProxy="true">
  <readerQuotas maxDepth="2147483646" maxStringContentLength="2147483646" maxArrayLength="2147483646"
    maxBytesPerRead="2147483646" maxNameTableCharCount="2147483646" />
  <security mode="None">
    <transport clientCredentialType="None" proxyCredentialType="None"
      realm="" />        
  </security>
</binding>    
  </basicHttpBinding>    
</bindings>   

<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="basicHttpsBinding"  scheme="https"/>
</protocolMapping>    
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />

我已在 IIS 中本地托管此服务。内容对象包含 17346288 字节。我认为这个问题是因为互联网连接，但我的网络连接工作正常。我得到的应该是什么错误？

Answer 1

您的数据传输模式设置为缓冲区，尝试缓冲内存中的整个内容。查看此帖子 - WCF HttpTransport: streamed vs buffered TransferMode

Answer 2

我有类似的问题。如果我记得，你必须修改你的WCF服务中的app.xaml文件，并提供更多的maxbytes，maxpool ...类似的东西

我错误地更新了Web.Config文件并最大化了以下内容：

maxBufferSize，maxBufferPoolSize等。

请看这里：Large Binary (byte[]) File transfer through WCF

WCF服务 - System.OutOfMemoryException问题

2 个答案: