设置上传文件大小
ASP.NET中maxRequestLength和maxAllowedContentLength的区别;上传大文件设置IIS7文件上传的最大大小
<system.web>
<httpRuntime maxRequestLength="2147483647" executionTimeout="3600" ></httpRuntime>
</system.web>
<system.webServer>
<security>
<requestFiltering>
<requestLimits maxAllowedContentLength="2147483647" />
</requestFiltering>
</security>
</system.webServer>