Connect to MYSQL Databases hosted in a virtual machina from Java

Question

I trying to conncet to my MySQL Database hosted in a virtual machine, but it doesn't work for me.

Here is my setup:

• Newest Ubuntu Server witch Apache2 mysql installed and is working
• Database "feedback" with the table "test" set up and filled with test data
• The network adapter is bridged. The IP of the server is (if I type in ifconfig) 10.0.0.1 and the IP of my pc is 10.0.0.4.
• Port 3306 was manually opened. The jar mysql connector java 5.1.21-bin.jar is a Referenced Libary

Here is the Java Code:

import java.sql.*;

public class Main {

  public static void main(String[] args) {

    try {

        Class.forName("com.mysql.jdbc.Driver").newInstance();
        System.out.println("Sucess");
        Connection con = DriverManager.getConnection("jdbc:mysql://10.0.0.1/feedback","root","myrootpassword");

        con.setReadOnly(true);



    } catch (Exception e) {


        System.err.print("NO CONNECTION");
    }

  }
}

I hope that someone could help with this, because I'm working on this problem for a while.

Thanks

Answer 1

Just two ideas:

• Is MySQL configured to listen on all addresses and not only local ones ? What's the value of the bind-address configuration directive ? 0.0.0.0 means "listen on all interfaces", while 127.0.0.1 means "listen on the localhost interface, for access from this host only".
• Maybe you can extract some details about the issue in your catch statement ?

Hope this helps !

Answer 2

If i am correctly understand a question ,To connect VM database,then check for the following steps

1.jdbc:mysql://10.0.0.1/feedback.

2.Make sure there is no firewall blocking the access to port 3306.

3.make sure the user you are connecting with is allowed to connect from this particular hostname.