如何形成一个正确的MySQL连接string？

我正在使用C＃，我试图连接到00webhost托pipe的MySQL数据库。

我得到错误的线connection.Open() ：

这个参数没有mysql主机。

我已经检查，一切似乎都很好。

 string MyConString = "SERVER=mysql7.000webhost.com;" + "DATABASE=a455555_test;" + "UID=a455555_me;" + "PASSWORD=something;"; MySqlConnection connection = new MySqlConnection(MyConString); MySqlCommand command = connection.CreateCommand(); MySqlDataReader Reader; command.CommandText = "INSERT Test SET lat=" + OSGconv.deciLat + ",long=" + OSGconv.deciLon; connection.Open(); Reader = command.ExecuteReader(); connection.Close(); 

这个连接string有什么问题？

Answer 1

尝试创build连接string这种方式：

 MySqlConnectionStringBuilder conn_string = new MySqlConnectionStringBuilder(); conn_string.Server = "mysql7.000webhost.com"; conn_string.UserID = "a455555_test"; conn_string.Password = "a455555_me"; conn_string.Database = "xxxxxxxx"; using (MySqlConnection conn = new MySqlConnection(conn_string.ToString())) using (MySqlCommand cmd = conn.CreateCommand()) { //watch out for this SQL injection vulnerability below cmd.CommandText = string.Format("INSERT Test (lat, long) VALUES ({0},{1})", OSGconv.deciLat, OSGconv.deciLon); conn.Open(); cmd.ExecuteNonQuery(); } 

Answer 2

这里是一个例子：

 MySqlConnection con = new MySqlConnection( "Server=ServerName;Database=DataBaseName;UID=username;Password=password"); MySqlCommand cmd = new MySqlCommand( " INSERT Into Test (lat, long) VALUES ('"+OSGconv.deciLat+"','"+ OSGconv.deciLon+"')", con); con.Open(); cmd.ExecuteNonQuery(); con.Close(); 

Answer 3

 string MyConString = "Data Source='mysql7.000webhost.com';" + "Port=3306;" + "Database='a455555_test';" + "UID='a455555_me';" + "PWD='something';";