lambda解析转mysql

import java.util.List;
import java.util.stream.Collectors;

public class LambdaExample {
    public static void main(String[] args) {
        List<Integer> numbers = List.of(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);

        // 使用并行流处理数据
        List<Integer> result = numbers.parallelStream()
                                      .filter(n -> n % 2 == 0)
                                      .map(n -> n * 2)
                                      .collect(Collectors.toList());

        System.out.println(result);
    }
}

import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;

import java.sql.Connection;
import java.sql.SQLException;

public class MySQLConnectionPool {
    private static HikariDataSource dataSource;

    static {
        HikariConfig config = new HikariConfig();
        config.setJdbcUrl("jdbc:mysql://localhost:3306/mydatabase");
        config.setUsername("username");
        config.setPassword("password");
        config.setMaximumPoolSize(20);
        config.setMinimumIdle(5);

        dataSource = new HikariDataSource(config);
    }

    public static Connection getConnection() throws SQLException {
        return dataSource.getConnection();
    }
}