如何根据配置切换EF Core使用的数据库提供者？

"ConnectionStrings": {
  "DefaultConnection": "Server=(localdb)\\mssqllocaldb;Database=MyDatabase;Trusted_Connection=True;MultipleActiveResultSets=true"
},
"DatabaseProvider": "SqlServer"

services.AddDbContext<MyDbContext>(options =>
{
    var connectionString = Configuration.GetConnectionString("DefaultConnection");
    var databaseProvider = Configuration.GetValue<string>("DatabaseProvider");

    switch (databaseProvider)
    {
        case "SqlServer":
            options.UseSqlServer(connectionString);
            break;
        case "MySql":
            options.UseMySql(connectionString);
            break;
        // 添加其他数据库提供者的处理逻辑
        default:
            throw new NotSupportedException($"Database provider '{databaseProvider}' is not supported.");
    }
});