Java MySQL DataSource Example

In this article, we will learn how to create and use a DataSource object to get a connection to MySQL data source without using JNDI services.

Download the MySQL JDBC driver from https://dev.mysql.com/downloads/connector/j/ and add it to the build path of your project.

Java MySQL DataSource Example

The following example demonstrates how to get a connection from MySQL DataSource. Also, we will create an employee table using the Statement interface.
package com.javaguides.jdbc.statement.examples.packages; import java.sql.Connection; import java.sql.SQLException; import java.sql.Statement; import javax.sql.DataSource; import com.mysql.jdbc.jdbc2.optional.MysqlDataSource; /**  * JDBC MysqlDataSource Example  * @author Ramesh Fadatare  *  */ public class DataSourceExample { private static final String createTableSQL = "create table employee (\r\n" + " id int(3) primary key,\r\n" + " name varchar(20),\r\n" + " email varchar(20),\r\n" + " country varchar(20),\r\n" + " password varchar(20)\r\n" + " );"; private static DataSource getMySQLDatasource() { MysqlDataSource dataSource = new MysqlDataSource(); // Set dataSource Properties dataSource.setServerName("localhost"); dataSource.setPortNumber(3306); dataSource.setDatabaseName("mysql_database"); dataSource.setUser("root"); dataSource.setPassword("root"); return dataSource; } public static void main(String[] argv) throws SQLException { DataSourceExample dataSourceExample = new DataSourceExample(); dataSourceExample.createTable(); } public void createTable() throws SQLException { System.out.println(createTableSQL); // Step 1: Establishing a Connection try (Connection connection = getMySQLDatasource().getConnection(); // Step 2:Create a statement using connection object Statement statement = connection.createStatement();) { // Step 3: Execute the query or update query statement.execute(createTableSQL); } catch (SQLException e) { // print SQL exception information printSQLException(e); } // Step 4: try-with-resource statement will auto close the connection. } public static void printSQLException(SQLException ex) { for (Throwable e: ex) { if (e instanceof SQLException) { // e.printStackTrace(System.err); System.err.println("SQLState: " + ((SQLException) e).getSQLState()); System.err.println("Error Code: " + ((SQLException) e).getErrorCode()); System.err.println("Message: " + e.getMessage()); Throwable t = ex.getCause(); while (t != null) { System.out.println("Cause: " + t); t = t.getCause(); } } } } }
Output:
create table employee ( id int(3) primary key, name varchar(20), email varchar(20), country varchar(20), password varchar(20) );

References

https://www.javaguides.net/2018/10/jdbc-datasource-connection-mysql-example.html


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