mysql如何连接c3p0

<dependencies>
    <dependency>
        <groupId>com.mchange</groupId>
        <artifactId>c3p0</artifactId>
        <version>0.9.5.5</version>
    </dependency>
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>8.0.26</version>
    </dependency>
</dependencies>

<?xml version="1.0" encoding="UTF-8"?>
<c3p0-config>
    <default-config>
        <property name="driverClass">com.mysql.cj.jdbc.Driver</property>
        <property name="jdbcUrl">jdbc:mysql://localhost:3306/mydatabase</property>
        <property name="user">username</property>
        <property name="password">password</property>
        <property name="initialPoolSize">5</property>
        <property name="minPoolSize">5</property>
        <property name="maxPoolSize">20</property>
        <property name="acquireIncrement">5</property>
        <property name="maxIdleTime">1800</property>
    </default-config>
</c3p0-config>

import com.mchange.v2.c3p0.ComboPooledDataSource;
import java.sql.Connection;
import java.sql.SQLException;

public class C3P0Example {
    private static ComboPooledDataSource cpds = new ComboPooledDataSource();

    static {
        try {
            cpds.setConfig("c3p0-config.xml");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public static Connection getConnection() throws SQLException {
        return cpds.getConnection();
    }

    public static void main(String[] args) {
        try (Connection conn = getConnection()) {
            System.out.println("Connected to the database!");
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}