scrapy采集数据过程中放弃下载过大的页面

2022-04-25 00:00:00 采集 过程中 过大

添加以下代码到settings.py，myproject为你的项目名称

DOWNLOADER_HTTPCLIENTFACTORY = 'myproject.downloader.LimitSizeHTTPClientFactory'

自定义限制下载过大页面的模块

MAX_RESPONSE_SIZE = 1048576 # 1Mb
from scrapy.core.downloader.webclient import ScrapyHTTPClientFactory, ScrapyHTTPPageGetter
class LimitSizePageGetter(ScrapyHTTPPageGetter):
    def handleHeader(self, key, value):
        ScrapyHTTPPageGetter.handleHeader(self, key, value)
        if key.lower() == 'content-length' and int(value) > MAX_RESPONSE_SIZE:
            self.connectionLost('oversized')
class LimitSizeHTTPClientFactory(ScrapyHTTPClientFactory):
     protocol = LimitSizePageGetter

相关文章