Connecting with DriverManager

JDBC (Java Database Connectivity, package java.sql) is the low-level API every Java database library — including Hibernate — uses underneath. A vendor driver jar (MySQL Connector/J, PostgreSQL JDBC) implements it.

Java code -> java.sql API (Connection, PreparedStatement, ResultSet)
           -> JDBC driver jar (com.mysql:mysql-connector-j)
           -> network -> MySQL server

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

public class JdbcDemo {
    private static final String URL = "jdbc:mysql://localhost:3306/shopease";
    private static final String USER = "shopease";
    private static final String PASSWORD = "secret";

    public static void main(String[] args) throws SQLException {
        // try-with-resources closes the connection automatically
        try (Connection conn = DriverManager.getConnection(URL, USER, PASSWORD)) {
            System.out.println("Connected to " + conn.getMetaData().getDatabaseProductName());
        }
    }
}