class SpiderMan(object):
def __init__(self):
self.manager = URLManager()
self.downloader = HtmlDownloader()
self.parser = HtmlParser()
self.output = DataOutput()
def crawl(self, root_url):
self.manager.add_new_url(root_url)
while (self.manager.has_new_url()
and self.manager.old_url_size() < 100):
try:
new_url = self.manager.get_new_url()
html = self.downloader.download(new_url)
new_urls, data = self.parser(new_url)
self.manager.add_new_url(new_urls)
self.output.store_data(data)
print('已经抓取了{}个连接'.format(self.manager.old_url_size()))
except Exception:
print('爬取失败')
self.output.output_html()