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- # 导入必要的库
- from pymongo import MongoClient
- import pandas as pd
- import pytz # 用于处理时区
- def export_to_excel(db_name, collection_name, fields, output_file):
- """
- 从MongoDB导出特定字段到Excel文件。
- 参数:
- - db_name: 数据库名称
- - collection_name: 集合名称
- - fields: 要导出的字段列表(例如 ['name', 'age'])
- - output_file: 输出的Excel文件名
- """
- # 连接到MongoDB
- # client = MongoClient('mongodb://172.20.45.129:27002/')
- client = MongoClient('mongodb://127.0.0.1:27087/', unicode_decode_error_handler="ignore",directConnection=True) # 修改为你的连接地址
- # client = MongoClient('mongodb://127.0.0.1:27087/', unicode_decode_error_handler="ignore",directConnection=True) # 清洗库
- db = client[db_name]
- collection = db[collection_name]
- # 构建查询和投影
- projection = {field: 1 for field in fields}
- # 查询数据
- data = collection.find({"tag": 11},projection).sort("_id", 1)
- # 将数据转换为DataFrame
- df = pd.DataFrame(list(data))
- # # 转换时间戳字段
- # time_fields = ['bidopentime', 'bidendtime']
- # for field in time_fields:
- # if field in df.columns:
- # # 1. 转换为 datetime 对象(秒级时间戳)
- # df[field] = pd.to_datetime(df[field], unit='s', errors='coerce')
- # # 2. 转换为北京时间(UTC+8)
- # beijing_tz = pytz.timezone('Asia/Shanghai')
- # df[field] = df[field].dt.tz_localize('UTC').dt.tz_convert(beijing_tz)
- # # 3. 去掉时区信息,保留纯时间(否则Excel可能显示异常)
- # df[field] = df[field].dt.tz_localize(None)
- # 导出到Excel文件
- df.to_excel(output_file, index=False)
- if __name__ == "__main__":
- # 连接到 MongoDB
- db_name = 'jyqyfw' # 替换为你的数据库名称
- # db_name = 'jyqyfw' # 替换为你的数据库名称
- # collection_name = 'standard_sample_data_all_ai' # 替换为你的集合名称
- # collection_name = 'xzh_20250714' # 替换为你的集合名称
- collection_name = 'xzh_20250714_1' # 替换为你的集合名称
- # 定义参数
- # fields = ['_id','id','site','toptype','subtype','area','city','buyer','projectname','projectcode','budget','s_winner','bidamount','label','href','jybxhref','package'] # 替换为你需要导出的字段
- # fields = ['id','site','toptype','subtype','area','city','buyer','projectname','projectcode','budget','s_winner','bidamount','label','href','jybxhref'] # 替换为你需要导出的字段
- fields = ['id','title','projectname','href','projectcode','subtype','s_winner','bidamount','buyer'] # 替换为你需要导出的字段
- output_file = 'output.xlsx'
- # 调用函数导出数据
- export_to_excel(db_name, collection_name, fields, output_file)
- print(f"数据已成功导出到 {output_file}")
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