提前请确保已经安装了postgresql相关的驱动包
import java.sql.*; public class PostgresConnectionExample { public static void main(String[] args) throws SQLException { // 定义数据库连接信息 String url = "jdbc:postgresql://localhost:5432/mydatabase"; String username = "your_username"; String password = "your_password"; try (Connection conn = DriverManager.getConnection(url, username, password)) { System.out.println("成功连接到PostgreSQL数据库!"); // 在此处添加对数据库的查询、更新等操作 } catch (SQLException e) { System.err.println("无法连接到PostgreSQL数据库:" + e.getMessage()); } } }
参考:https://blog.csdn.net/weixin_60414376/article/details/123467598