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创建命令目录及文件
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settings.py中定义命令
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代码
from scrapy.commands import ScrapyCommand
class Command(ScrapyCommand):
requires_project = True
def syntax(self):
return '[options]'
def short_desc(self):
return 'Runs all of the spiders'
def run(self, args, opts):
# 获取爬虫列表
spider_list = self.crawler_process.spiders.list()
for name in spider_list:
# 初始化爬虫
self.crawler_process.crawl(name, **opts.__dict__)
# 开始执行所有的爬虫
self.crawler_process.start() -