In ASP.NET Core 2.0, solve the configuration problem of large file upload

In .net core 2.0, when the uploaded file is larger than 30MB, it will report: Request filtering on the server is configured to reject the request because the content length exceeds the configured value.

The solution to this problem is as follows:

1), add the following code in Startup.cs:

public void ConfigureServices(IServiceCollection services)
{
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
//Configuration file size limit 1GB
    services.Configure(options =>
{
options.ValueLengthLimit = 1073741824;
options.MultipartBodyLengthLimit = 1073741824;
    });

//........

}

2), add the following code before the specific method:

  ///

//...... 

   } }

3), add a web.config file to the project, the specific code is as follows:

 
 
     
     
 
 
 /system.webServer>

The problems reported in the system can be solved through the above three steps: The request screening module is configured to reject requests exceeding the length of the requested content. This is asecurity function.Please do not change this feature unless you are fully aware of the scope of the change.You can configure the IIS server to reject requests with a content length greater than a specified value.This error is returned if the requested content length is greater than the configured length.Increase the content length if needed.