把以下内容加在web.config的<system.webServer>节点
<security>
<requestFiltering >
<requestLimits maxAllowedContentLength="1024000000" ></requestLimits>
</requestFiltering>
</security>
把以下内容加在web.config的<system.webServer>节点
<security>
<requestFiltering >
<requestLimits maxAllowedContentLength="1024000000" ></requestLimits>
</requestFiltering>
</security>