Java สอบถามเรื่อง connect = DriverManager.getConnection("jdbc:mysql: โดย ip address host จริง

public static void main(String[] args) {
		  String url = "jdbc:mysql://192.168.1.100:3306/";
		  String dbName = "demo" ;
		  String driver = "com.mysql.jdbc.Driver";
		  String userName = "root"; 
		  String password = "mypasswd";
		  try {
		  Class.forName(driver).newInstance();
		  Connection conn = DriverManager.getConnection(url+dbName,userName,password);
		  
		  conn.close();
		  } catch (Exception e) {
		  e.printStackTrace();
		  }
		  }