Connect to mysql database java

Question

I am trying to connect to MySQL database from Java (MySQL is hosted in WAMP server)

String userName = "root";
String password = "pass";
String url = "jdbc:mysql://localhost/dbase";
Class.forName ("com.mysql.jdbc.Driver").newInstance ();
conn = DriverManager.getConnection (url, userName, password); 

The connection is fine when I am running from localhost. However when I run this code from another computer replacing localhost with my computer's IP (within the same network), I get the error,

message from server: "Host '<name>' is not allowed to connect to this MySQL server"

I have tried with port 3306 too. Whats wrong?

Answer 1

That's a permission issue on the database side; you need to grant permissions to user root to connect from your specific IP address.

Something like this should work:

GRANT ALL ON foo.* TO root@'1.2.3.4' IDENTIFIED BY 'PASSWORD';

On the other hand; I wouldn't use root for access to the database; you should use a regular user account for this.

Answer 2

You should not use the root account for development. To solve your problem lets create a hypothetical user called dbasedev .

CREATE USER 'dbasedev'@'%' IDENTIFIED BY 'passw0rd!';
GRANT ALL PRIVILEGES ON *.* TO 'dbasedev'@'%';
FLUSH PRIVILEGES;

This will allow you to connect to the MySQL server with user id: dbasedev , password: passw0rd! , from any host.

This is a complement to @Icarus's answer, I couldn't post all the code in a comment.