我需要为特定的dbContext添加一个记录器。例如，我有下一个代码：
'{"detalle": "el Expediente N\\\\u00b0\\\\u00a030 de la Resoluci\\\\u00f3n 11..."}'
如果我展开var dbContextOptionsBuilder1 = new DbContextOptionsBuilder();
dbContextOptionsBuilder1.UseSqlServer("Data Source=localhost;Initial Catalog=DataBase;Integrated Security=True");
var dbContext1 = new DbContext(dbContextOptionsBuilder1.Options);
var loggerFactory1 = dbContext1.GetService<ILoggerFactory>();
loggerFactory1.AddProvider(new CustomLoggerProvider());
var dbContextOptionsBuilder2 = new DbContextOptionsBuilder();
dbContextOptionsBuilder2.UseSqlServer("Data Source=localhost;Initial Catalog=DataBase;Integrated Security=True");
var dbContext2 = new DbContext(dbContextOptionsBuilder2.Options);
var loggerFactory2 = dbContext2.GetService<ILoggerFactory>();
的非公开成员，我会看到我添加的CustomLoggerProvider（_providerRegistrations = Count = 1）。但是，如果我展开loggerFactory1的非公开成员，尽管我没有将其添加到loggerFactory2，但我会看到相同的CustomLoggerProvider（_providerRegistrations = Count = 1）。
在下一个代码中，我还出现了另一个意外行为：
dbContext2在这种情况下，我在public class MyDbContext : DbContext
{
private readonly IDbService dbService;
public MyDbContext(IDbService dbService, DbContextOptions options) : base(options)
{
}
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
}
}
var dbContextOptionsBuilder1 = new DbContextOptionsBuilder();
dbContextOptionsBuilder1.UseSqlServer("Data Source=localhost;Initial Catalog=DataBase;Integrated Security=True");
var dbContext1 = new DbContext(dbContextOptionsBuilder1.Options);
var loggerFactory1 = dbContext1.GetService<ILoggerFactory>();
loggerFactory1.AddProvider(new CustomLoggerProvider());
var dbContextOptionsBuilder2 = new DbContextOptionsBuilder();
dbContextOptionsBuilder2.UseSqlServer("Data Source=localhost;Initial Catalog=DataBase;Integrated Security=True");
var dbContext2 = new DbContext(dbContextOptionsBuilder2.Options);
var loggerFactory2 = dbContext2.GetService<ILoggerFactory>();
var dbContextOptionsBuilder3 = new DbContextOptionsBuilder();
dbContextOptionsBuilder3.UseSqlServer("Data Source=localhost;Initial Catalog=DataBase;Integrated Security=True");
var dbContext3 = new MyDbContext(new DbService(), dbContextOptionsBuilder3.Options);
var loggerFactory3 = dbContext3.GetService<ILoggerFactory>();
loggerFactory3.AddProvider(new CustomLoggerProvider());
var dbContextOptionsBuilder4 = new DbContextOptionsBuilder();
dbContextOptionsBuilder4.UseSqlServer("Data Source=localhost;Initial Catalog=DataBase;Integrated Security=True");
var dbContext4 = new MyDbContext(new DbService(), dbContextOptionsBuilder4.Options);
var loggerFactory4 = dbContext4.GetService<ILoggerFactory>();
中获得了1个CustomLoggerProvider（_providerRegistrations = Count = 1），在dbContext3中获得了相同的记录器（_providerRegistrations = Count = 1）。因此，dbContext4，dbContext1和dbContext2，dbContext3之间没有关系。
因此，如果我向dbContext4添加一个CustomLoggerProvider，我将得到下一个结果：
dbContext1使用ILoggerFactory的正确方法是什么？