MVC上传文件受限制

mvc自带设置4M一下的字体可以上传，4M以上的字体需要对web.config进行设置


  <system.web>

    <httpRuntime targetFramework="4.5"  executionTimeout="90" maxRequestLength="41943040"    useFullyQualifiedRedirectUrl="false"
minFreeThreads="8" minLocalRequestFreeThreads="4" appRequestQueueLimit="100" />

  </system.web>

  <system.webServer>
    <security>
      <requestFiltering>
        <requestLimits  maxAllowedContentLength="41943040"></requestLimits>
        <!--<requestLimits  maxAllowedContentLength="4194"></requestLimits>-->
      </requestFiltering>
    </security>

  </system.webServer>