How do you use connection pooling with a simple code example?

Connection pooling is a technique used to enhance the performance of executing commands on a database by reusing connections from a pool of established connections. In Java, this can be achieved using libraries like HikariCP, Apache DBCP, or C3P0. Below is a simple example of using HikariCP for connection pooling:


        // Import the necessary classes
        import com.zaxxer.hikari.HikariConfig;
        import com.zaxxer.hikari.HikariDataSource;
        import java.sql.Connection;
        import java.sql.SQLException;

        public class ConnectionPoolExample {
            public static void main(String[] args) {
                // Configure HikariCP
                HikariConfig config = new HikariConfig();
                config.setJdbcUrl("jdbc:mysql://localhost:3306/yourDatabase");
                config.setUsername("yourUsername");
                config.setPassword("yourPassword");
                config.setMaximumPoolSize(10); // Set the maximum size of the pool
                
                // Create the HikariDataSource
                HikariDataSource dataSource = new HikariDataSource(config);

                // Get a connection from the pool
                try (Connection connection = dataSource.getConnection()) {
                    // Use the connection
                    System.out.println("Connection successful!");
                    // Perform database operations here
                } catch (SQLException e) {
                    e.printStackTrace();
                } finally {
                    // Close the datasource when done
                    dataSource.close();
                }
            }
        }

How do you use connection pooling with a simple code example?

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How do you use connection pooling with a simple code example?

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