JDBC Tutorials - Herong's Tutorial Examples - v3.12, by Dr. Herong Yang
Creating Connections with DataSource Class
This section describes how to create connection objects with the DataSource class.
It is recommended now that connection objects are created by the DataSource implementation class, com.mysql.cj.jdbc.MysqlDataSource (or com.mysql.jdbc.jdbc2.optional.MysqlDataSource for older versions of the MySQL JDBC driver). Here is a sample program that creates a connection object using the DataSource class:
/* MySqlDataSource.java * Copyright (c) HerongYang.com. All Rights Reserved. */ import java.sql.*; import javax.sql.*; public class MySqlDataSource { public static void main(String [] args) { Connection con = null; try { // Setting up the DataSource object - newer version com.mysql.cj.jdbc.MysqlDataSource ds = new com.mysql.cj.jdbc.MysqlDataSource(); // Setting up the DataSource object - older version // com.mysql.jdbc.jdbc2.optional.MysqlDataSource ds // = new com.mysql.jdbc.jdbc2.optional.MysqlDataSource(); ds.setServerName("localhost"); ds.setPortNumber(3306); ds.setDatabaseName("HerongDB"); ds.setUser("Herong"); ds.setPassword("TopSecret"); // Getting a connection object con = ds.getConnection(); // Getting database info DatabaseMetaData meta = con.getMetaData(); System.out.println("Server name: " + meta.getDatabaseProductName()); System.out.println("Server version: " + meta.getDatabaseProductVersion()); // Closing the connection con.close(); } catch (Exception e) { System.err.println("Exception: "+e.getMessage()); } } }
The output confirms that I got a good connection. Remember to include the JDBC driver JAR file in the classpath for both compilation and execution:
herong> javac -cp .:mysql-connector-java.jar MySqlDataSource.java herong> java -cp .:mysql-connector-java.jar MySqlDataSource Server name: MySQL Server version: 8.0.17
Table of Contents
JDBC (Java Database Connectivity) Introduction
Installing and Running Java DB - Derby
Derby (Java DB) JDBC DataSource Objects
Java DB (Derby) - DML Statements
Java DB (Derby) - ResultSet Objects of Queries
Java DB (Derby) - PreparedStatement
►MySQL JDBC Driver (MySQL Connector/J)
MySQL Connector/J - Download and Installation
Loading JDBC Driver for MySQL Server
►Creating Connections with DataSource Class
Getting Driver and Server Information
Creating Tables with AUTO_INCREMENT Columns
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 - Reference Implementation of JdbcRowSet
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