WCF SOAP 服务上传带有 base64 字符串的文档，当从 Postman 中访问大于 50 kb 的文档时，会出现错误 413 请求实体太大

Question

我有一个 WCF SOAP 服务来上传文档。它工作正常，因为其他系统已经在使用它，但是当从 Postman 访问它时，它会给出错误状态 - 413 对于大小 > 50 kb 的文档，请求实体太大。我们正在使用 JSON 中的 base64 字符串进行 Postman 调用

尝试了所有可用的解决方案，但没有任何对我有用。请帮忙。

以下是网络配置-

<system.serviceModel>
    <serviceHostingEnvironment multipleSiteBindingsEnabled="true" />
    <bindings>
      <basicHttpBinding>
        <binding name="HttpStreaming" maxReceivedMessageSize="2147483647" maxBufferPoolSize="2147483647" maxBufferSize="2147483647" transferMode="Streamed">
          <readerQuotas maxDepth="200" maxStringContentLength="8388608" maxArrayLength="16384" maxBytesPerRead="2147483647" maxNameTableCharCount="16384" />
    </binding>
        <binding name="GetCurrentDBServerSoap" closeTimeout="00:01:00" openTimeout="00:02:00" receiveTimeout="00:10:00" sendTimeout="00:02:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true">
          <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="4096" maxNameTableCharCount="16384" />
          <security mode="None">
            <transport clientCredentialType="None" proxyCredentialType="None" realm="" />
            <message clientCredentialType="UserName" algorithmSuite="Default" />
          </security>
        </binding>
        <binding name="BasicCustomBinding0" closeTimeout="00:01:00" openTimeout="00:02:00" receiveTimeout="00:10:00" sendTimeout="00:02:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferSize="2147483647" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered" useDefaultWebProxy="true">
          <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="16384" />
          <security mode="None">
            <transport clientCredentialType="None" proxyCredentialType="None" realm="" />
            <message clientCredentialType="UserName" algorithmSuite="Default" />
          </security>
        </binding>
      </basicHttpBinding>
      <wsHttpBinding>
        <binding name="TestCustomBinding" closeTimeout="00:03:00" openTimeout="00:03:00" receiveTimeout="00:10:00" sendTimeout="00:03:00" allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="false">
          <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
          <security mode="Message">
            <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" />
            <message clientCredentialType="Windows" algorithmSuite="Default" />
          </security>
        </binding>
      </wsHttpBinding>
      <customBinding>
        <binding name="LargeCustomBinding" receiveTimeout="04:00:00" openTimeout="05:00:00" closeTimeout="04:00:00" sendTimeout="04:00:00">
          <binaryMessageEncoding maxReadPoolSize="2147483647" maxSessionSize="2147483647" maxWritePoolSize="2147483647">
            <readerQuotas maxArrayLength="2147483647" maxDepth="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" maxStringContentLength="2147483647" />
          </binaryMessageEncoding>
          <httpTransport maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" maxBufferPoolSize="2147483647" transferMode="Streamed" />
        </binding>
      </customBinding>
      <webHttpBinding>
        <binding maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" transferMode="Streamed"></binding>
      </webHttpBinding>
    </bindings>
    <services>
      <service behaviorConfiguration="SimpleServiceBehavior" name="TestDataService.TestDataServices.StreamUploadFile">
        <endpoint address="" binding="customBinding" bindingConfiguration="LargeCustomBinding" contract="TestDataService.ITestDataServices.StreamUploadFile" />
      </service>
    </services>
    <behaviors>
            <serviceBehaviors>
        <behavior name="SimpleServiceBehavior">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="true" />
          <dataContractSerializer maxItemsInObjectGraph="2147483647" />
          <serviceThrottling maxConcurrentCalls="32" maxConcurrentSessions="20" maxConcurrentInstances="2147483647" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>

Answer 1

根据您的描述，您的服务工作正常，但 Postman 有问题。

您可以在邮递员的标题设置中设置Content-length。我觉得你可以在这里设置一个比较大的值来测试一下。