mysql查询结果传递

import java.sql.*;
import java.util.*;

public class MySQLQueryExample {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/mydatabase";
        String user = "username";
        String password = "password";

        try (Connection conn = DriverManager.getConnection(url, user, password)) {
            String sql = "SELECT * FROM mytable";
            try (Statement stmt = conn.createStatement();
                 ResultSet rs = stmt.executeQuery(sql)) {
                List<Map<String, Object>> resultList = new ArrayList<>();
                while (rs.next()) {
                    Map<String, Object> row = new HashMap<>();
                    ResultSetMetaData metaData = rs.getMetaData();
                    int columnCount = metaData.getColumnCount();
                    for (int i = 1; i <= columnCount; i++) {
                        row.put(metaData.getColumnName(i), rs.getObject(i));
                    }
                    resultList.add(row);
                }
                // 将查询结果传递给其他模块
                processResult(resultList);
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    private static void processResult(List<Map<String, Object>> resultList) {
        for (Map<String, Object> row : resultList) {
            System.out.println(row);
        }
    }
}