Java异步链接mysql

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.util.concurrent.CompletableFuture;

public class AsyncMySQLExample {

    public static void main(String[] args) {
        CompletableFuture.runAsync(() -> {
            try (Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydatabase", "user", "password");
                 Statement stmt = conn.createStatement();
                 ResultSet rs = stmt.executeQuery("SELECT * FROM mytable")) {

                while (rs.next()) {
                    System.out.println(rs.getString("columnName"));
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }).thenRun(() -> {
            System.out.println("Database operation completed asynchronously.");
        });
    }
}