linux下java连接mysql数据库

import java.sql.*;

public class Main {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/mydatabase"; // 数据库URL
        String username = "root"; // 数据库用户名
        String password = "password"; // 数据库密码

        try {
            // 加载数据库驱动程序
            Class.forName("com.mysql.jdbc.Driver");

            // 建立数据库连接
            Connection conn = DriverManager.getConnection(url, username, password);

            // 创建Statement对象
            Statement stmt = conn.createStatement();

            // 执行查询
            String sql = "SELECT * FROM mytable";
            ResultSet rs = stmt.executeQuery(sql);

            // 处理查询结果
            while (rs.next()) {
                int id = rs.getInt("id");
                String name = rs.getString("name");
                System.out.println("ID: " + id + ", Name: " + name);
            }

            // 关闭连接
            rs.close();
            stmt.close();
            conn.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

javac Main.java
java Main