user5809644 user5809644 - 5 months ago 15
MySQL Question

error when connecting mysql to Java netbeans

I am trying to connect a

connector/j driver
to Netbeans.

I am following below steps to connect,

  1. In services I right click and click new connection.

  2. then I browse and add
    file .

  3. Then click next.

  4. Then comes a
    JDBC url : jdbc:mysql://localhost:3306/mysql

  5. I click the test connection button

Then I get the following error:

Cannot establish a connection
to jdbc:mysql://localhost:3306/mysql using com.mysql.jdbc.
Driver (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.)

Answer Source

I've personally had this problem too. Netbeans sometimes has problems dealing with MySQL. I would suggest you download MySQL Community Server and MySQL Workbench and use those to run your database. It's much more efficient and gives you more control over your database.