public class JDBCUtils {
        public static final String DRIVER_CLASS_NAME = "com.mysql.jdbc.Driver";
        public static final String URL = "jdbc:mysql://localhost:3306/gjp";
        public static final String USERNAME = "root";
        public static final String PASSWORD = "wyz";
       
        private static final int MAX_IDLE = 3;
        private static final long MAX_WAIT = 5000;
        private static final int MAX_ACTIVE = 5;
        private static final int INITIAL_SIZE = 3;
       
        private static BasicDataSource dataSource = new BasicDataSource();
        static {
                dataSource.setDriverClassName(DRIVER_CLASS_NAME);
                dataSource.setUrl(URL);
                dataSource.setUsername(USERNAME);
                dataSource.setPassword(PASSWORD);
                       
                dataSource.setMaxActive(MAX_IDLE);
                dataSource.setMaxWait(MAX_WAIT);
                dataSource.setMaxActive(MAX_ACTIVE);
                dataSource.setInitialSize(INITIAL_SIZE);
        }
       
        public static DataSource getDataSource() {
                return dataSource;
        }
}

public class JDBCUtils {
        public static final String DRIVER_CLASS_NAME = "com.mysql.jdbc.Driver";
        public static final String URL = "jdbc:mysql://localhost:3306/gjp";
        public static final String USERNAME = "root";
        public static final String PASSWORD = "wyz";
       
        private static final int MAX_IDLE = 3;
        private static final long MAX_WAIT = 5000;
        private static final int MAX_ACTIVE = 5;
        private static final int INITIAL_SIZE = 3;
       
        private static BasicDataSource dataSource = new BasicDataSource();
        static {
                dataSource.setDriverClassName(DRIVER_CLASS_NAME);
                dataSource.setUrl(URL);
                dataSource.setUsername(USERNAME);
                dataSource.setPassword(PASSWORD);
                       
                dataSource.setMaxActive(MAX_IDLE);
                dataSource.setMaxWait(MAX_WAIT);
                dataSource.setMaxActive(MAX_ACTIVE);
                dataSource.setInitialSize(INITIAL_SIZE);
        }
       
        public static DataSource getDataSource() {
                return dataSource;
        }
}