eclipse项目连接mysql数据库

import java.sql.*;

public class Main {
    public static void main(String[] args) {
        Connection conn = null;
        try {
            // 连接到数据库
            conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydatabase", "username", "password");
            
            // 执行 SQL 查询
            Statement stmt = conn.createStatement();
            ResultSet rs = stmt.executeQuery("SELECT * FROM mytable");
            
            // 处理查询结果
            while (rs.next()) {
                // 获取数据并进行处理
                int id = rs.getInt("id");
                String name = rs.getString("name");
                // ...
            }
            
            // 关闭连接
            rs.close();
            stmt.close();
            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}