Communication link error mysql jdbc

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Hi guys,

I get this error when I want to connect to my database.

Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

I use MySQL Workbench Eclipse and Apache.

My code is

Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection ("jdbc:mysql://127.0.0.1:3006/dblabor","root","root"); 
System.out.println("Connection successful");

Thanks in advance I hope someone can help.

What I have tried:

<pre>Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection ("jdbc:mysql://127.0.0.1:3006/dblabor","root","root"); 
System.out.println("Connection successful");

Posted 11-May-18 8:31am

Member 13814158

Updated 11-May-18 17:33pm

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ThilinaMD 11-May-18 23:27pm

try changing 127.0.0.1 to localhost. or i think you have entered incorrect port number (3006) instead of 3306 which assigned by default when mysql installs.(if you haven't changed it.)

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ThilinaMD · Accepted Answer · 2018-05-11T17:35:00

Solution 1

try this (assuming you have default port number for mysql).

Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection ("jdbc:mysql://localhost:3306/dblabor","root","root"); 
System.out.println("Connection successful");

Posted 11-May-18 17:35pm

ThilinaMD

Comments

Member 13814158 13-May-18 8:40am

Thank you! but then I get this exception
Access denied for user 'root'@'localhost' (using password: YES)

ThilinaMD 14-May-18 12:38pm

so it says your mysql connection do not use a password. try providing null(empty) password from connection parametres. Connection con = DriverManager.getConnection ("jdbc:mysql://localhost:3306/dblabor","root","");

Member 13814158 15-May-18 4:58am

perfect thank you

ThilinaMD 15-May-18 12:49pm

welcome and happy coding!!!.