加入下面的配置即可
<?xml version="1.0" encoding="UTF-8"?> <configuration> <system.webServer> <security> <requestFiltering> <requestLimits maxAllowedContentLength="102400000" /> </requestFiltering> </security> </system.webServer> <system.web> <httpRuntime maxRequestLength="989934592" executionTimeout="3600" /> </system.web>