Here’s an example to show you how to connect to MySQL database via a JDBC driver. First, get a MySQL JDBC driver from here -MySQL JDBC Driver Download Here.

1. Java JDBC connection example

Code snippets to use a JDBC driver to connect a MySQL database.

Class.forName("com.mysql.jdbc.Driver");
Connection conn = null;
conn = DriverManager.getConnection("jdbc:mysql://hostname:port/dbname","username", "password");
conn.close();

See a complete example below :

JDBCExample.java
package com.mkyong.common;
 
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.SQLException;
 
public class JDBCExample {
 
  public static void main(String[] argv) {
 
	System.out.println("-------- MySQL JDBC Connection Testing ------------");
 
	try {
		Class.forName("com.mysql.jdbc.Driver");
	} catch (ClassNotFoundException e) {
		System.out.println("Where is your MySQL JDBC Driver?");
		e.printStackTrace();
		return;
	}
 
	System.out.println("MySQL JDBC Driver Registered!");
	Connection connection = null;
 
	try {
		connection = DriverManager
		.getConnection("jdbc:mysql://localhost:3306/mkyongcom","root", "password");
 
	} catch (SQLException e) {
		System.out.println("Connection Failed! Check output console");
		e.printStackTrace();
		return;
	}
 
	if (connection != null) {
		System.out.println("You made it, take control your database now!");
	} else {
		System.out.println("Failed to make connection!");
	}
  }
}

2. Run it

Assume JDBCExample.java is store in c:\test folder, along with the MySQL JDBC driver

C:\test>java -cp c:\test\mysql-connector-java-5.1.8-bin.jar;c:\test JDBCExample
-------- MySQL JDBC Connection Testing ------------
MySQL JDBC Driver Registered!
You made it, take control your database now!
 
C:\test>

P.S To run this example, your need mysql-connector-java-{version}-bin.jar in your classpath.

Done.

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