wos:启动代码

main
zhaoxiangpeng 3 weeks ago
parent 131b760adf
commit 1b0da2c41e

@ -0,0 +1,43 @@
# -*- coding: utf-8 -*-
# @Time : 2025/12/11 13:56
# @Author : zhaoxiangpeng
# @File : crawl_article_by_qid.py
import math
from scrapy.crawler import CrawlerProcess
from scrapy.utils.project import get_project_settings
from science_article_add.spiders.download_by_qid import DownloadByQidSpider
BATCH_DOWNLOAD_LIMIT = 500
process = CrawlerProcess(get_project_settings())
RECORDS_FOUND = 1486
wos_download_todo = [
]
def f(record_id: str, records_found: int):
mark_start = 1
mark_end = 0
idx = 0
for i in range(math.ceil(records_found / BATCH_DOWNLOAD_LIMIT)):
idx += 1
mark_end += BATCH_DOWNLOAD_LIMIT
if mark_end > records_found:
mark_end = records_found
yield dict(
record_id=record_id, batch=idx,
mark_from=mark_start, mark_to=mark_end, records_found=records_found
)
mark_start += BATCH_DOWNLOAD_LIMIT
init_params = dict(
record_id='02f30273-1342-4d61-9e51-c1ea1f5b2423-0190efdd10',
mark_from=1, mark_to=500, records_found=10641
)
process.crawl(DownloadByQidSpider, **init_params)
process.start()

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# -*- coding: utf-8 -*-
# @Time : 2025/12/11 17:07
# @Author : zhaoxiangpeng
# @File : crawl_article_by_ut.py
import math
import time
import logging
from twisted.internet import defer
from scrapy.crawler import CrawlerProcess
from scrapy.utils.project import get_project_settings
from science_article_add.spiders.wos_download import WosDownloadSpider
logging.getLogger('pymongo').setLevel(logging.WARNING)
logger = logging.getLogger(__name__)
BATCH_DOWNLOAD_LIMIT = 500
@defer.inlineCallbacks
def crawl_sequentially():
settings = get_project_settings()
from pymongo import MongoClient
client = MongoClient(settings.get("MONGO_URI"))
db = client.get_database(settings.get("MONGO_DATABASE"))
collection = db.get_collection("todo_ids_wos")
def f():
count = collection.count_documents(filter={"state": 0})
return count
while count_doc := f():
logger.info('待下载数量 %d' % count_doc)
yield process.crawl(WosDownloadSpider)
time.sleep(60)
process.stop() # 所有爬虫结束后关闭事件循环
if __name__ == '__main__':
process = CrawlerProcess(get_project_settings())
crawl_sequentially()
process.start() # 阻塞直到所有爬虫完成
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