336 lines
11 KiB
Python
336 lines
11 KiB
Python
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# import csv
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# from typing import List, Dict, Optional
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# from datetime import datetime
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# from base import LogHelper,MySQLHelper
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# logger = LogHelper(logger_name = 'export').setup()
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# def get_monthly_avg_data(db_config: dict, table_name: str) -> Optional[List[Dict]]:
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# """
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# 从数据库读取月度均值数据
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# Args:
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# db_config: 数据库配置
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# table_name: 源数据表名
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# Returns:
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# List[Dict]: 查询结果数据集，失败返回None
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# """
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# try:
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# with MySQLHelper(**db_config) as db:
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# # 获取表结构信息
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# columns = db.execute_query(f"""
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# SELECT COLUMN_NAME
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# FROM INFORMATION_SCHEMA.COLUMNS
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# WHERE TABLE_SCHEMA = %s AND TABLE_NAME = %s
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# ORDER BY ORDINAL_POSITION
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# """, (db_config['database'], table_name))
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# if not columns:
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# logger.error(f"表 {table_name} 不存在或没有列")
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# return None
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# # 获取列名列表(排除id和update_time)
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# field_names = [col['COLUMN_NAME'] for col in columns
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# if col['COLUMN_NAME'] not in ('id', 'update_time')]
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# # 查询数据
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# data = db.execute_query(f"""
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# SELECT {', '.join(field_names)}
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# FROM {table_name}
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# ORDER BY stock_code
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# """)
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# if not data:
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# logger.error(f"表 {table_name} 中没有数据")
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# return None
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# return data
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# except Exception as e:
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# logger.error(f"从数据库读取月度均值数据失败: {str(e)}")
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# return None
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# def get_float_share_data(db_config: dict, table_name: str) -> Optional[List[Dict]]:
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# """
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# 从conditionalselection表读取流通股本数据
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# Args:
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# db_config: 数据库配置
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# table_name: 源数据表名
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# Returns:
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# List[Dict]: 查询结果数据集，失败返回None
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# """
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# try:
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# with MySQLHelper(**db_config) as db:
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# # 查询流通股本数据
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# data = db.execute_query(f"""
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# SELECT stock_code, stock_name, float_share
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# FROM {table_name}
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# ORDER BY stock_code
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# """)
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# if not data:
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# logger.error(f"表 {table_name} 中没有流通股本数据")
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# return None
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# return data
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# except Exception as e:
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# logger.error(f"从数据库读取流通股本数据失败: {str(e)}")
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# return None
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# def export_to_csv(data: List[Dict], output_file: str) -> bool:
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# """
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# 将合并后的数据导出到CSV文件
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# Args:
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# data: 要导出的数据集
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# output_file: 输出的CSV文件路径
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# Returns:
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# bool: 是否导出成功
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# """
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# if not data:
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# return False
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# try:
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# # 获取字段名(使用第一个数据的键)
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# field_names = list(data[0].keys())
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# # 字段名到中文的映射
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# header_map = {
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# 'stock_code': '股票代码',
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# 'stock_name': '股票名称',
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# 'ym_2410': '2024年10月',
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# 'ym_2411': '2024年11月',
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# 'ym_2412': '2024年12月',
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# 'ym_2501': '2025年01月',
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# 'ym_2502': '2025年02月',
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# 'ym_2503': '2025年03月',
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# 'ym_2504': '2025年04月',
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# 'ym_2505': '2025年05月',
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# 'ym_2506': '2025年06月',
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# 'ym_2507': '2025年07月',
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# 'ym_2508': '2025年08月',
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# 'avg_all': '月度均值'
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# }
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# with open(output_file, mode='w', newline='', encoding='utf-8-sig') as csvfile:
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# writer = csv.DictWriter(csvfile, fieldnames=field_names)
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# # 写入中文表头
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# writer.writerow({col: header_map.get(col, col) for col in field_names})
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# # 写入数据
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# writer.writerows(data)
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# logger.info(f"成功导出 {len(data)} 条记录到CSV文件: {output_file}")
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# return True
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# except Exception as e:
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# logger.error(f"导出到CSV失败: {str(e)}")
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# return False
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# def export_data(db_config: dict,
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# monthly_table: str,
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# csv_file: str = None) -> bool:
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# """
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# 导出合并后的数据到CSV和/或Excel
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# Args:
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# db_config: 数据库配置
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# monthly_table: 月度均价表名
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# float_share_table: 流通股本表名
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# csv_file: CSV输出路径(可选)
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# excel_file: Excel输出路径(可选)
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# Returns:
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# bool: 是否至少有一种格式导出成功
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# """
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# # 从数据库获取数据
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# monthly_data = get_monthly_avg_data(db_config, monthly_table)
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# if not monthly_data:
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# logger.error("无法获取月度均价数据")
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# return False
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# # 导出结果
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# filePath = 'data/' + csv_file
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# csv_success = True
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# if csv_file:
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# csv_success = export_to_csv(monthly_data, filePath)
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# return csv_success
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import csv
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from typing import List, Dict, Optional
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from base import LogHelper, MySQLHelper
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class DataExporter:
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"""数据导出器类，用于从数据库提取数据并导出到CSV文件"""
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# 表头映射配置
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HEADER_MAP = {
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'stock_code': '股票代码',
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'stock_name': '股票名称',
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'ym_2410': '2024年10月',
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'ym_2411': '2024年11月',
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'ym_2412': '2024年12月',
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'ym_2501': '2025年01月',
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'ym_2502': '2025年02月',
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'ym_2503': '2025年03月',
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'ym_2504': '2025年04月',
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'ym_2505': '2025年05月',
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'ym_2506': '2025年06月',
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'ym_2507': '2025年07月',
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'ym_2508': '2025年08月',
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'avg_all': '月度均值'
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}
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def __init__(self, db_config: dict, logger_name: str = 'export'):
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"""
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初始化数据导出器
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Args:
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db_config: 数据库配置字典
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logger_name: 日志记录器名称
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"""
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self.db_config = db_config
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self.logger = LogHelper(logger_name=logger_name).setup()
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def get_monthly_avg_data(self, table_name: str) -> Optional[List[Dict]]:
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"""
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从数据库读取月度均值数据
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Args:
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table_name: 源数据表名
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Returns:
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List[Dict]: 查询结果数据集，失败返回None
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"""
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try:
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with MySQLHelper(**self.db_config) as db:
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# 获取表结构信息
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columns = db.execute_query(f"""
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SELECT COLUMN_NAME
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FROM INFORMATION_SCHEMA.COLUMNS
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WHERE TABLE_SCHEMA = %s AND TABLE_NAME = %s
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ORDER BY ORDINAL_POSITION
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""", (self.db_config['database'], table_name))
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if not columns:
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self.logger.error(f"表 {table_name} 不存在或没有列")
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return None
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# 获取列名列表(排除id和update_time)
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field_names = [col['COLUMN_NAME'] for col in columns
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if col['COLUMN_NAME'] not in ('id', 'update_time')]
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# 查询数据
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data = db.execute_query(f"""
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SELECT {', '.join(field_names)}
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FROM {table_name}
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ORDER BY stock_code
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""")
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if not data:
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self.logger.error(f"表 {table_name} 中没有数据")
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return None
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return data
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except Exception as e:
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self.logger.error(f"从数据库读取月度均值数据失败: {str(e)}")
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return None
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def get_float_share_data(self, table_name: str) -> Optional[List[Dict]]:
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"""
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从conditionalselection表读取流通股本数据
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Args:
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table_name: 源数据表名
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Returns:
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List[Dict]: 查询结果数据集，失败返回None
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"""
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try:
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with MySQLHelper(**self.db_config) as db:
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# 查询流通股本数据
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data = db.execute_query(f"""
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SELECT stock_code, stock_name, float_share
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FROM {table_name}
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ORDER BY stock_code
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""")
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if not data:
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self.logger.error(f"表 {table_name} 中没有流通股本数据")
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return None
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return data
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except Exception as e:
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self.logger.error(f"从数据库读取流通股本数据失败: {str(e)}")
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return None
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def export_to_csv(self, data: List[Dict], output_file: str) -> bool:
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"""
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将合并后的数据导出到CSV文件
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Args:
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data: 要导出的数据集
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output_file: 输出的CSV文件路径
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Returns:
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bool: 是否导出成功
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"""
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if not data:
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self.logger.warning("没有数据可导出")
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return False
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try:
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# 获取字段名(使用第一个数据的键)
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field_names = list(data[0].keys())
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with open(output_file, mode='w', newline='', encoding='utf-8-sig') as csvfile:
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writer = csv.DictWriter(csvfile, fieldnames=field_names)
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# 写入中文表头
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writer.writerow({col: self.HEADER_MAP.get(col, col) for col in field_names})
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# 写入数据
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writer.writerows(data)
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self.logger.info(f"成功导出 {len(data)} 条记录到CSV文件: {output_file}")
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return True
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except Exception as e:
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self.logger.error(f"导出到CSV失败: {str(e)}")
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return False
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def export_data(self, monthly_table: str, csv_file: str = None) -> bool:
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"""
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导出合并后的数据到CSV
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Args:
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monthly_table: 月度均价表名
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csv_file: CSV输出路径(可选)
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Returns:
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bool: 是否导出成功
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"""
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# 从数据库获取数据
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monthly_data = self.get_monthly_avg_data(monthly_table)
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if not monthly_data:
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self.logger.error("无法获取月度均价数据")
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return False
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# 导出结果
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file_path = 'data/' + csv_file if csv_file else None
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csv_success = True
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if csv_file:
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csv_success = self.export_to_csv(monthly_data, file_path)
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return csv_success |