Question

When I use SPServiceContext.Current to get an object, it just returns null.

I have tried to give some parameters to SPServiceContext.GetCurrent, such as one SPSite instance, but it still returns null.

Answer 1

You indicate in your comments that you’re running this from a console app.

SPServiceContext.Current is the same as GetContext(HttpContext) and can only be used in the context of a called web request (i.e. web app running in SharePoint under IIS, not a console app)

From a console app you’re probably looking for something like

SPSite mySite = new SPSite("Absolute_URL");
SPServiceContext myContext = SPServiceContext.GetContext Method (mySite);

See SPSite & SPServiceContext.GetContext