Java program will not connect to mySQL database

Question

Using a simple example online, I am running a Java program to return users from a table.

The database is MySQL. I have already downloaded the JDBC driver, stored it in my JRE7 /lib folder.

The problem is the program never connects to the database, it skips the whole try block and prints out a "test" string at the end. Have I overlooked a major step in this? It's really frustrating!!

EDIT: Best to describe how I've attempted to set up a connection to the database.

The mysql-connector-java-5.1.18-bin is stored in jre7/lib.

I startup mysql workbench. The connection is name ive created is com.fyp.db, with the host address at 127.0.0.1:3306.

I then run my code, which attempts to query the sample table - sakila - provided by mySQL workbench and..nothing!

Installed MySQL workbench. Installed JDBC driver.

public class Version {

public static void main(String[] args) {

    Connection con = null;
    Statement st = null;
    ResultSet rs = null;

    //String url = "jdbc:mysql://127.0.0.1/sakila";
    String url = "jdbc:mysql://localhost:3306/sakila";
    String user = "root";
    String password = "root";

    try {

        Class.forName("com.mysql.jdbc.Driver").newInstance();

        con = DriverManager.getConnection(url, user, password);
        st = con.createStatement();
        rs = st.executeQuery("select * from ACTOR;");

        System.out.println("test");

        if (rs.next()) {
            System.out.println(rs.getString(1));
        }

    } catch (SQLException ex) {
        ex.printStackTrace();

    } finally {
        try {
            if (rs != null) {
                rs.close();
            }
            if (st != null) {
                st.close();
            }
            if (con != null) {
                con.close();
            }

        } catch (SQLException ex) {
            ex.printStackTrace();
        }
    }
}

}

Answer 1

It is simple .. you need .jar file called mysql-connector-java-5.1.16-bin.jar ,,, download it and add it to your libs ...

good luck !!!

Answer 2

I think you need this line:

Class.forName("org.mysql.Driver");

before calling DriverManager.getConnection(...);

Answer 3

You probably should create new driver instance. Here's how:

Class.forName("com.mysql.jdbc.Driver").newInstance();

Answer 4

You need to ensure that the jdbc.drivers property is set. There are a variety of ways to do this,

see the javadocs for DriverManager