try (Statement stmt = conn.createStatement()) stmt.execute("LISTEN my_channel"); // Wait for notifications while (true) PGNotification[] notifications = conn.unwrap(PGConnection.class).getNotifications(1000); if (notifications != null) for (PGNotification notification : notifications) System.out.println("Received: " + notification.getParameter());
This article explores how to effectively use the official driver, covering setup, CRUD operations, connection pooling, and advanced features like LISTEN / NOTIFY and COPY . The PostgreSQL JDBC Driver (Group ID: org.postgresql , Artifact ID: postgresql ) is a Type 4 JDBC driver. This means it’s written purely in Java and connects directly to the database using the PostgreSQL wire protocol—no native libraries or ODBC bridges required. postgresql java driver
// Update try (PreparedStatement pstmt = conn.prepareStatement("UPDATE users SET name = ? WHERE id = ?")) pstmt.setString(1, "Alice B."); pstmt.setLong(2, 1); pstmt.executeUpdate(); try (Statement stmt = conn