Loading JDBC Driver for MySQL Server

This section describes how to load the MySQL JDBC driver class - mysql-connector-java-xxx-bin.jar.

If you are using JDK 8 or higher, it will automatically load the MySQL JDBC driver, as long as the JAR file is included in the classpath. There is no need to call Class.forName("com.mysql.cj.jdbc.Driver") to load the driver class explicitly Here is a tutorial program to show you how JDBC loads the MySQL JDBC driver:

/* MySqlLoadDriver.java
 * Copyright (c) HerongYang.com. All Rights Reserved.
 */
import java.sql.*;
import java.util.*;
public class MySqlLoadDriver {
  public static void main(String [] args) {
    Connection con = null;
    try {
      System.out.println("Before loading SQLServerDriver:");
      listDrivers();

// Load the MySQL JDBC driver - new class name
      Class.forName("com.mysql.cj.jdbc.Driver");

// Load the MySQL JDBC driver - old class name
      // Class.forName("com.mysql.jdbc.Driver");

      System.out.println("After loading SQLServerDriver:");
      listDrivers();

    } catch (Exception e) {
      System.err.println("Exception: "+e.getMessage());
    }
  }
  private static void listDrivers() {
    Enumeration driverList = DriverManager.getDrivers();
    while (driverList.hasMoreElements()) {
      Driver driverClass = (Driver) driverList.nextElement();
      System.out.println("   "+driverClass.getClass().getName());
    }
  }
}

The compilation and execution tests with JDK 13 were recorded below:

herong> javac MySqlLoadDriver.java

herong> java -cp .:mysql-connector-java-8.0.19.jar MySqlLoadDriver
Before loading SQLServerDriver:
   com.mysql.cj.jdbc.Driver
After loading SQLServerDriver:
   com.mysql.cj.jdbc.Driver

As you can see from the output, there is no need to call Class.forName("com.mysql.cj.jdbc.Driver") to load the driver class explicitly. The driver class is loaded automatically by the JVM, if the driver class JAR is in the classpath.

By the way, the classpath delimiter is ":" on macOS and Linux systems. For Windows systems, you need to use ";".

Old versions of JDK and/or MySQL JDBC driver may behave differently. For example, here is the output of the same program with JDK 8 and MySQL JDBC 5.1.36 driver. I am not sure what the "com.mysql.fabric.jdbc.FabricMySQLDriver" driver class is for.

herong> javac MySqlLoadDriver.java

herong> java -cp .:mysql-connector-java-5.1.36-bin.jar MySqlLoadDriver

Before loading SQLServerDriver:
   com.mysql.jdbc.Driver
   com.mysql.fabric.jdbc.FabricMySQLDriver
After loading SQLServerDriver:
   com.mysql.jdbc.Driver
   com.mysql.fabric.jdbc.FabricMySQLDriver

Table of Contents

 About This Book

 JDBC (Java Database Connectivity) Introduction

 JDK (Java SE) Installation

 Installing and Running Java DB - Derby

 Derby (Java DB) JDBC Driver

 Derby (Java DB) JDBC DataSource Objects

 Java DB (Derby) - DML Statements

 Java DB (Derby) - ResultSet Objects of Queries

 Java DB (Derby) - PreparedStatement

 MySQL Installation on Windows

MySQL JDBC Driver (MySQL Connector/J)

 MySQL Connector/J - Download and Installation

Loading JDBC Driver for MySQL Server

 JDBC Driver Connection URL

 Creating Connections with DataSource Class

 Getting Driver and Server Information

 Creating Tables with AUTO_INCREMENT Columns

 "INSERT INTO" Statements

 MySQL - PreparedStatement

 MySQL - Reference Implementation of JdbcRowSet

 MySQL - JBDC CallableStatement

 MySQL CLOB (Character Large Object) - TEXT

 MySQL BLOB (Binary Large Object) - BLOB

 Oracle Express Edition Installation on Windows

 Oracle JDBC Drivers

 Oracle - Reference Implementation of JdbcRowSet

 Oracle - PreparedStatement

 Oracle - JBDC CallableStatement

 Oracle CLOB (Character Large Object) - TEXT

 Oracle BLOB (Binary Large Object) - BLOB

 Microsoft SQL Server Express Edition

 Microsoft JDBC Driver for SQL Server

 Microsoft JDBC Driver - Query Statements and Result Sets

 Microsoft JDBC Driver - DatabaseMetaData Object

 Microsoft JDBC Driver - DDL Statements

 Microsoft JDBC Driver - DML Statements

 SQL Server - PreparedStatement

 SQL Server CLOB (Character Large Object) - TEXT

 SQL Server BLOB (Binary Large Object) - BLOB

 JDBC-ODBC Bridge Driver - sun.jdbc.odbc.JdbcOdbcDriver

 JDBC-ODBC Bridge Driver - Flat Text Files

 JDBC-ODBC Bridge Driver - MS Access

 JDBC-ODBC Bridge Driver - MS SQL Server

 Summary of JDBC Drivers and Database Servers

 Additional Tutorial Notes to Be Added

 Outdated Tutorials

 References

 Full Version in PDF/EPUB