Postgres Jdbc Driver Jun 2026

Class.forName("org.postgresql.Driver"); // not required in modern Java

public class PostgresDao private final HikariDataSource dataSource; public PostgresDao() HikariConfig config = new HikariConfig(); config.setJdbcUrl("jdbc:postgresql://localhost:5432/mydb"); config.setUsername(System.getenv("DB_USER")); config.setPassword(System.getenv("DB_PASS")); config.setMaximumPoolSize(10); config.addDataSourceProperty("cachePrepStmts", "true"); config.addDataSourceProperty("prepStmtCacheSize", "250"); config.addDataSourceProperty("prepStmtCacheSqlLimit", "2048"); this.dataSource = new HikariDataSource(config); postgres jdbc driver

HikariDataSource dataSource = new HikariDataSource(config); this.dataSource = new HikariDataSource(config)

<dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-dbcp2</artifactId> <version>2.11.0</version> </dependency> BasicDataSource ds = new BasicDataSource(); ds.setUrl("jdbc:postgresql://localhost/mydb"); ds.setUsername("user"); ds.setPassword("pass"); ds.setMaxTotal(20); ds.setMaxIdle(10); HikariDataSource dataSource = new HikariDataSource(config)

catch (SQLException e) throw new RuntimeException("Database error", e);