private static Connection conexionMySQL = null;

public static void CreaConexion (Context context, String usuario, String pass, String ip, String puerto, String catalogo)
{
    if (conexionMySQL == null)
    {
        String urlConexionMySQL = "";

        if (catalogo != "")
        {
            urlConexionMySQL = "jdbc:mysql://address=(protocol=tcp)(host="+ip+")(port="+puerto+")(user=root)/"+catalogo+"";
        }
        else
            urlConexionMySQL = "jdbc:mysql://address=(protocol=tcp)(host="+ip+")(port="+puerto+")(user=root)/";

        if (usuario != "" & pass != "" & ip != "" & puerto != "")
        {
            try
            {
                Class.forName("com.mysql.jdbc.Driver");

                Toast.makeText(context, urlConexionMySQL, Toast.LENGTH_LONG).show();

                conexionMySQL = DriverManager.getConnection(urlConexionMySQL, usuario, pass);
            }
            catch (ClassNotFoundException e)
            {
                  Toast.makeText(context, "Error: " + e.getMessage(), Toast.LENGTH_LONG).show();
            }
            catch (SQLException e)
            {
                  Toast.makeText(context, "Error: " + e.getMessage(), Toast.LENGTH_LONG).show();
            }
        }
    }
}

# SERVER SECTION
# ----------------------------------------------------------------------
#
# The following options will be read by the MySQL Server. Make sure that
# you have installed the server correctly (see above) so it reads this
# file.
#
# server_type=3
[mysqld]

# The next three options are mutually exclusive to SERVER_PORT below.
# skip-networking
# enable-named-pipe
# The Pipe the MySQL Server will use
# socket=mysql

# The TCP/IP Port the MySQL Server will listen on
port=3306
bind-address=*