android 连接mysql数据库

String query = "SELECT * FROM users WHERE username = ? AND password = ?";
PreparedStatement pstmt = connection.prepareStatement(query);
pstmt.setString(1, username);
pstmt.setString(2, password);
ResultSet rs = pstmt.executeQuery();

try (Connection connection = DriverManager.getConnection(url, username, password)) {
    // 数据库操作
} catch (SQLException e) {
    e.printStackTrace();
}

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

public class DatabaseConnector {
    private static final String URL = "jdbc:mysql://your_mysql_server:3306/your_database";
    private static final String USERNAME = "your_username";
    private static final String PASSWORD = "your_password";

    public static void main(String[] args) {
        try (Connection connection = DriverManager.getConnection(URL, USERNAME, PASSWORD);
             Statement statement = connection.createStatement();
             ResultSet resultSet = statement.executeQuery("SELECT * FROM users")) {

            while (resultSet.next()) {
                System.out.println("User ID: " + resultSet.getInt("id"));
                System.out.println("User Name: " + resultSet.getString("name"));
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}