在Android Studio中连接计算机数据库

dependencies {
    implementation 'mysql:mysql-connector-java:8.0.26'
}

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class DatabaseHelper {
    private static final String DB_URL = "jdbc:mysql://localhost:3306/mydatabase";
    private static final String DB_USER = "username";
    private static final String DB_PASSWORD = "password";

    public static void main(String[] args) {
        try {
            // 加载数据库驱动程序
            Class.forName("com.mysql.cj.jdbc.Driver");

            // 建立数据库连接
            Connection conn = DriverManager.getConnection(DB_URL, DB_USER, DB_PASSWORD);

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

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

            // 处理查询结果
            while (rs.next()) {
                String column1 = rs.getString("column1");
                int column2 = rs.getInt("column2");
                // 处理查询结果...
            }

            // 关闭连接和资源
            rs.close();
            stmt.close();
            conn.close();
        } catch (ClassNotFoundException | SQLException e) {
            e.printStackTrace();
        }
    }
}

DatabaseHelper.main(null);