160 lines
5.3 KiB
Python
160 lines
5.3 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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人民日报热点新闻爬虫命令行工具
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用法:
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python RmrbTrending.py --date 20250110
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python RmrbTrending.py --start-date 20250101 --end-date 20250110
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"""
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import argparse
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import json
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import sys
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from datetime import datetime, timedelta
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from pathlib import Path
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# Add parent directory to path to import crawler
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sys.path.insert(0, str(Path(__file__).parent.parent.parent))
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from crawler.rmrb.RmrbCrawler import RmrbCrawler
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from loguru import logger
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from core.ResultDomain import ResultDomain
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def parse_date(date_str) -> datetime:
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"""
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解析日期字符串或数字为datetime对象 (格式: YYYYMMDD)
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Args:
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date_str: 可为字符串或整数，如 "20250110" 或 20250110
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Returns:
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datetime对象
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Raises:
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ValueError: 格式错误
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"""
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# 统一转为字符串并清理
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if date_str is None:
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raise ValueError("日期不能为空")
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date_str = str(date_str).strip()
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if len(date_str) != 8 or not date_str.isdigit():
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raise ValueError(f"日期格式错误: '{date_str}'，正确格式为YYYYMMDD，例如: '20250110'")
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try:
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return datetime.strptime(date_str, "%Y%m%d")
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except ValueError:
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raise ValueError(f"日期格式错误: '{date_str}'，正确格式为YYYYMMDD，例如: '20250110'")
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def main():
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"""主函数"""
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parser = argparse.ArgumentParser(
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description='人民日报热点新闻获取工具',
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formatter_class=argparse.RawDescriptionHelpFormatter,
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epilog="""
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示例:
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# 获取单日热点新闻
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python RmrbTrending.py --date 20250110
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python RmrbTrending.py -d 20250110
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# 获取日期范围内的热点新闻
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python RmrbTrending.py --start-date 20250101 --end-date 20250110
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python RmrbTrending.py -s 20250101 -e 20250110
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# 不指定日期则根据 isYesterday 决定（默认昨日）
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python RmrbTrending.py
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"""
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)
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parser.add_argument('--startDate', '-s', type=str, help='开始日期 (需与--end-date一起使用)')
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parser.add_argument('--endDate', '-e', type=str, help='结束日期 (需与--start-date一起使用)')
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parser.add_argument('--yesterday', '-y', action='store_true', help='查询昨日 (默认行为)')
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parser.add_argument('--output', '-o', type=str, help='输出文件路径')
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args = parser.parse_args()
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# 初始化变量
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output_file = args.output
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start_date = args.startDate
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end_date = args.endDate
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is_yesterday = args.yesterday if args.yesterday else True # 默认查昨日
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logger.info("使用直接参数模式")
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# 辅助函数：清理空字符串
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def clean(s):
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return s.strip() if s and isinstance(s, str) and s.strip() else None
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start_date = clean(start_date)
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end_date = clean(end_date)
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try:
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crawler = RmrbCrawler()
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if is_yesterday:
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target_date = datetime.now() - timedelta(days=1)
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date_str = target_date.strftime('%Y%m%d')
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logger.info(f"获取昨日热点新闻: {target_date.strftime('%Y-%m-%d')} (参数格式: {date_str})")
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result = crawler.getOneDayTrendingNews(target_date)
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# 日期范围模式
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elif start_date and end_date:
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start_dt = parse_date(start_date)
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end_dt = parse_date(end_date)
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if start_dt > end_dt:
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raise ValueError("开始日期不能晚于结束日期")
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logger.info(f"获取日期范围热点新闻: {start_dt.strftime('%Y-%m-%d')} 至 {end_dt.strftime('%Y-%m-%d')}")
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result = crawler.getDaysTrendingNews(start_dt, end_dt)
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# 只给一个边界
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elif start_date or end_date:
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raise ValueError("--startDate 和 --endDate 必须同时指定")
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else:
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result = ResultDomain(code=0, message="参数错误", success=False, data=None, dataList=None)
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# 构造输出
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output = {
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"code": result.code,
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"message": result.message,
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"success": result.success,
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"data": None,
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"dataList": [item.model_dump() for item in result.dataList] if result.dataList else []
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}
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# 保存到文件
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if output_file:
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output_path = Path(output_file)
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output_path.parent.mkdir(parents=True, exist_ok=True)
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with open(output_path, 'w', encoding='utf-8') as f:
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json.dump(output, f, ensure_ascii=False, indent=2)
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logger.info(f"结果已保存到: {output_file}")
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print(json.dumps(output, ensure_ascii=False, indent=2))
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crawler.close()
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sys.exit(0 if result.success else 1)
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except ValueError as e:
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logger.error(f"参数错误: {str(e)}")
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error_output = {
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"code": 400,
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"message": f"参数错误: {str(e)}",
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"success": False,
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"data": None,
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"dataList": []
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}
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print(json.dumps(error_output, ensure_ascii=False, indent=2))
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sys.exit(1)
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except Exception as e:
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logger.error(f"执行失败: {str(e)}")
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error_output = {
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"code": 500,
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"message": f"执行失败: {str(e)}",
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"success": False,
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"data": None,
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"dataList": []
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}
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print(json.dumps(error_output, ensure_ascii=False, indent=2))
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sys.exit(1)
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if __name__ == "__main__":
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main() |