.net连接腾讯Mysql的问题

Question

第一次接触Mysql云数据库,按照网上的教程试了n次,都无法连接到数据库,始终报错Unable to connect to any of the specified MySQL hosts.求大神给个详细的教程,这是写的测试代码
public int TestMySql()
{
int t = 0;
string conStr = "Database=abc;Data Source=sh-cdb-5bcz584l.sql.tencentcdb.com:63994;User Id=XXX;Password=XXX;";

MySqlConnection con = new MySqlConnection(conStr);
MySqlCommand cmd = new MySqlCommand("select goodsName from goods", con);
con.Open();
MySqlDataReader read = cmd.ExecuteReader();
try
{
while (read.Read())
{
t += 1;
}
}
catch
{ }
finally
{
read.Close();
con.Close();
}
return t;
}
}

Answer 1

一个驱动问题，一个防火墙问题
都没问题就是你代码的问题