• 问题描述：如下代码会抛异常：The host 127.0.0.1 does not support SSL connections.

            string str = "Database=msgboard;Data Source=127.0.0.1;";//SslMode=none;
            str += "User Id=root;port=3306";
            sqlConn = new MySqlConnection(str);
            try
            {
                sqlConn.Open();
                Console.WriteLine("数据库连接成功");
            }catch(Exception ex)
            {
                Console.WriteLine("[数据库]连接失败"+ex.Message);
            }

• 解决方案，多了SslMode=none

            string str = "Database=msgboard;Data Source=127.0.0.1;SslMode=none;";
            str += "User Id=root;port=3306";
            sqlConn = new MySqlConnection(str);
            try
            {
                sqlConn.Open();
                Console.WriteLine("数据库连接成功");
            }catch(Exception ex)
            {
                Console.WriteLine("[数据库]连接失败"+ex.Message);
            }

• 原因就懒得分析了，我亲测是有效。你不妨试试。