WCF服务端返回：（413） Request Entity Too Large

出现这个原因我们应该都能猜测到，文件传出过大，超出了WCF默认范围，那么我们需要进行修改。

服务端和客户端都需要修改。

第一、客户端：

<system.serviceModel>
        <bindings>
            <basicHttpBinding>
                <binding name="BasicHttpBinding_ITaskService"  />
            </basicHttpBinding>
        </bindings>
        <client>
            <endpoint address="http://localhost:9001/wcf/TaskService.svc"
                binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_ITaskService"
                contract="BZAService.ITaskService" name="BasicHttpBinding_ITaskService" />
        </client>
    </system.serviceModel>

上面是wcf客户端默认生成的，如需要修改传输文件大小，需要一下改动

<binding name="BasicHttpBinding_ITaskService" maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" />

第二、服务端：

<system.serviceModel>
       <services>
      <service name="BZACenterService.AssetService.TaskService">
        <endpoint address="" binding="basicHttpBinding" contract="BZACenterService.AssetService.ITaskService">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8733/Design_Time_Addresses/BZACenterService.AssetService/TaskService/" />
          </baseAddresses>
        </host>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <serviceMetadata httpGetEnabled="True" httpsGetEnabled="True"/>
          <serviceDebug includeExceptionDetailInFaults="False" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>

　　上面是服务端默认配置，我们发现并没有bindings，如何设置那，方法是手动在<services>上增加如下

<bindings>
     <basicHttpBinding>
        <binding name="LargeDataTransferServicesBinding" maxReceivedMessageSize="2147483647" maxBufferSize="2147483647"
             transferMode="Streamed" sendTimeout="00:10:00" />
</binding>

　　然后记得在在service 力的endpoint  增加属性 bindingConfiguration="LargeDataTransferServicesBinding"

最终如下：

<system.serviceModel>
 <bindings>
      <basicHttpBinding>
        <binding name="LargeDataTransferServicesBinding" maxReceivedMessageSize="2147483647" maxBufferSize="2147483647"
                  transferMode="Streamed" sendTimeout="00:10:00"
                 />
      </basicHttpBinding>
    </bindings>
       <services>
      <service name="BZACenterService.AssetService.TaskService">
        <endpoint address="" binding="basicHttpBinding" contract="BZACenterService.AssetService.ITaskService">
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8733/Design_Time_Addresses/BZACenterService.AssetService/TaskService/" />
          </baseAddresses>
        </host>
      </service>
    </services>
    <behaviors>
      <serviceBehaviors>
        <behavior>
          <serviceMetadata httpGetEnabled="True" httpsGetEnabled="True"/>
          <serviceDebug includeExceptionDetailInFaults="False" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>

第三、测试运行

      最后编译运行，正常调用wcf了。