public interface ITutorClassTypeRepository:IRepository<TutorClassType, Int32>
{
    [MemoryCache]//使用MemoryCache，缓存有效时间默认10分钟
    IList<TutorClassType> GetByMemoryCached(Expression<Func<TutorClassType, bool>> where = null);

    [RedisCache(Expiration = 5)]//使用Redis，缓存有效时间为5分钟
    IList<TutorClassType> GetByRedisCached(Expression<Func<TutorClassType, bool>> where = null);
}

    //注入数据库上下文
    services.AddDbContextFactory(factory =>
    {
        factory.AddDbContext<PostgreSQLDbContext>("db1", new DbContextOption(){ConnectionString = "User ID=postgres;Password=123456;Host=localhost;Port=5432;Database=ZxwPgDemo;Pooling=true;" });
        factory.AddDbContext<SqlServerDbContext>("db2", new DbContextOption() { ConnectionString = "" });
        factory.AddDbContext<MongoDbContext>("db3", new DbContextOption() { ConnectionString = "" });
    });


    //获取
    public class TestController
    {
        public IDbContextCore DbContext1 { get; set; }
        public IDbContextCore DbContext2 { get; set; }
        public IDbContextCore DbContext3 { get; set; }

        public TestController(DbContextFactory factory)
        {
            DbContext1 = factory.GetDbContext("db1");
            DbContext2 = factory.GetDbContext("db2");
            DbContext3 = factory.GetDbContext("db3");
        }

        public void Run()
        {
            var db = DbContext1.GetDatabase();
            Console.WriteLine();
        }
    }

public class TestRepository: BaseRepository<MongoModel, ObjectId>, IMongoRepository
    {
        [FromDbContextFactory("db1")]
        public IDbContextCore DbContext1 { get; set; }
        [FromDbContextFactory("db2")]
        public IDbContextCore DbContext2 { get; set; }
        [FromDbContextFactory("db3")]
        public IDbContextCore DbContext3 { get; set; }



        public void Run()
        {
            Console.WriteLine("Over!");
        }

        public TestRepository(IDbContextCore dbContext) : base(dbContext)
        {
        }
    }