apache doris 兼容mysql协议；所以我们在.netcore项目中，可以使用Mysql的驱动

dotnet add package MySqlConnector

测试代码：

 [HttpGet]public async Task<string>  Get2(){//打开连接await using var connection = new MySqlConnection("Server=192.168.122.136;Port=9030;User ID=root;Password=admin123;Database=demo");await connection.OpenAsync();//添加数据using (MySqlCommand cmd = new MySqlCommand()){cmd.Connection = connection;cmd.CommandText = "insert into example_tbl VALUES(10006,'2021-4-10', '北京',36,0,'2023-3-10',200,40,6)";// cmd.Parameters.AddWithValue("p", "Hello world");int ret = await  cmd.ExecuteNonQueryAsync();Console.WriteLine($"ret={ret}");}//查询using var command = new MySqlCommand("SELECT *  FROM example_tbl;", connection);using var reader =await  command.ExecuteReaderAsync();while ( await  reader.ReadAsync()){Console.WriteLine($"user_id={reader.GetString(0)},city={reader.GetString(2)}");}return "ok";}

官方的地址：https://mysqlconnector.net/tutorials/basic-api/

连接字符串的说明：https://mysqlconnector.net/connection-options/

也可以整合Dapper,请看官网：Tutorial: Connect to MySQL with Dapper using C# - MySqlConnector

EFCore测试了下，没成功。