WCF：(400) Bad Request

最新推荐文章于 2021-08-06 14:27:09 发布

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最新推荐文章于 2021-08-06 14:27:09 发布

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文章标签：大数据

本文介绍了解决WCF服务中大数据传输时出现BadRequest错误的方法。通过调整服务器端与客户端的配置参数，如maxBufferSize和maxReceivedMessageSize等，可以有效解决因数据量过大而导致的服务端响应错误。

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报错信息:远程服务器返回了意外响应: (400) Bad Request。

经过几次调试，发现小数据量不会出现此错误，如何传输大数据量呢，经过网上搜索和几次测试发现，只要在服务端和客户端同时增大以下几个配置项。

服务器端：

<system.serviceModel>
    <bindings>
      <basicHttpBinding>
        <binding maxBufferPoolSize="5242880000" maxBufferSize="655360000" maxReceivedMessageSize="655360000">
          <security mode="None"/>
        </binding>
      </basicHttpBinding>
    </bindings>
    <services>
      <service name="test">
        <endpoint binding="basicHttpBinding" name="test" contract="Test_Service.Test"/>
      </service>
    </services>

    <behaviors>
      <serviceBehaviors>
        <behavior>
          
          <serviceMetadata httpGetEnabled="true"/>
          
          <serviceDebug includeExceptionDetailInFaults="true"/>
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
  </system.serviceModel>

同样在客户端也需要增大与服务器端相同的配置：

<system.serviceModel>
    <bindings>
      <basicHttpBinding>
        <binding name="BasicHttpBinding_ITest" closeTimeout="00:01:00"
                openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
                allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
                maxBufferSize="655360000" maxBufferPoolSize="5242880000" maxReceivedMessageSize="655360000"
                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://www.test.com/Test.svc"
        binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_ITest"
        contract="TestService.ITest" name="BasicHttpBinding_ITest" />
    </client>
  </system.serviceModel>