wcf - 远程服务器返回意外响应 : (400) Bad Request

Question

调用我的 WCF 服务方法时没有错误，除了一个。

这个称为 SaveTemplate() 的特殊方法接受 byte[] 的输入。

我正在使用大小为字节 [806803] 的文件测试此方法，
但以错误结尾:

WCF - The remote server returned an unexpected response: (400) Bad Request.*

我浏览了在 Google 上找到的几个搜索结果，并根据这些结果对 app.config 进行了一些更改，但仍然出现错误:-(

这是我的 WCF 服务库的 App.Config 文件:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <system.web>
    <compilation debug="true" />
  </system.web>

  <system.serviceModel>
    <bindings>
      <wsHttpBinding>
        <binding name="wsHttp" maxReceivedMessageSize="50000000" maxBufferPoolSize="50000000"
        messageEncoding="Mtom" >
          <readerQuotas maxDepth="500000000" maxStringContentLength="500000000" maxArrayLength="500000000"
          maxBytesPerRead="500000000" maxNameTableCharCount="500000000" />
          <security mode="None"></security>
        </binding>
      </wsHttpBinding>
    </bindings>

    <services>
      <service behaviorConfiguration="ReportingComponentLibrary.TemplateServiceBehavior"
        name="ReportingComponentLibrary.TemplateService">
        <endpoint address="" binding="wsHttpBinding" contract="ReportingComponentLibrary.ITemplateService" bindingConfiguration="wsHttp" >
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" ></endpoint>
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8080/ReportingComponentLibrary/TemplateService/" />
          </baseAddresses>
        </host>
      </service>

      <service behaviorConfiguration="ReportingComponentLibrary.TemplateServiceBehavior"
        name="ReportingComponentLibrary.TemplateReportService">
        <endpoint address="" binding="wsHttpBinding" contract="ReportingComponentLibrary.ITemplateReportService" bindingConfiguration="wsHttp" >
          <identity>
            <dns value="localhost" />
          </identity>
        </endpoint>
        <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
        <host>
          <baseAddresses>
            <add baseAddress="http://localhost:8080/ReportingComponentLibrary/TemplateReportService/" />
          </baseAddresses>
        </host>
      </service>

    </services>

    <behaviors>
      <serviceBehaviors>
        <behavior name="ReportingComponentLibrary.TemplateServiceBehavior">
          <serviceMetadata httpGetEnabled="True"/>
          <serviceDebug includeExceptionDetailInFaults="True" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>
</configuration>

Answer 1

由于您似乎是在 IIS 中的 ASP.NET 内部托管，因此除了 WCF 的各种设置之外，您还需要确保还设置了 ASP.NET 允许的请求长度。对于 ASP.NET，您要查找的设置是 maxRequestLength在 the httpRuntime element .此设置的默认值仅为 4MB，因此这可以解释您遇到问题的原因。

对于 512MB 的 maxLength，这看起来有点像这样:

<system.web>
    <httpRuntime maxRequestLength="524288" />

    <!-- rest of your config here -->
</system.web>