def parse_detail(self, response):
# article_content = response.css('.article_content #content').extract()
# article_content = response.xpath('//div[@class="article_content"]/div[@id="content"]').extract()
# original_url = response.css('.article_detail a::attr(href)').extract_first()
# # original_url = response.xpath('//div[@class="article_detail"]/a/@href').extract_first()
tags = response.css('.article_more a::text').extract()
if tags:
tags = tags
else:
tags = '无'
# # tags = response.xpath('//*[@class="article_more"]/a/text()').extract()
item_loader = ItemLoader(item=ZakerItem(),
response=response,
dont_filter=True)
item_loader.add_value('url_id', get_md5(response.url))
item_loader.add_value('article_url', response.url)
item_loader.add_value('title', response.meta.get('title'))
item_loader.add_value('media', response.meta.get('media'))
item_loader.add_value('comments_num',
response.meta.get('comments_num'))
item_loader.add_value('img_url', response.meta.get('img_url'))
item_loader.add_css('article_content', '.article_content #content')
item_loader.add_css('original_url', '.article_detail a::attr(href)')
item_loader.add_value('tags', tags)
# item_loader.add_value('parse_time', datetime.datetime.now())
article_item = item_loader.load_item()
yield article_item
def parse_detail(self, response):
article_item = JobboleItem()
#文章封面图地址
front_image_url = response.meta.get("front_image_url", "")
title = response.xpath(
'//div[@class="entry-header"]/h1/text()').extract_first()
create_date = response.xpath(
'//p[@class="entry-meta-hide-on-mobile"]/text()').extract(
)[0].strip().split()[0]
tag_list = response.xpath(
'//p[@class="entry-meta-hide-on-mobile"]/a/text()').extract()
tag_list = [
element for element in tag_list
if not element.strip().endswith("评论")
]
tag = ",".join(tag_list)
praise_nums = response.xpath(
'//span[contains(@class,"vote-post-up")]/h10/text()').extract()
if len(praise_nums) == 0:
praise_nums = 0
else:
praise_nums = int(praise_nums[0])
fav_nums = response.xpath(
'//span[contains(@class,"bookmark-btn")]/text()').extract()[0]
match_re = re.match(".*(\d+).*", fav_nums)
if match_re:
fav_nums = int(match_re.group(1))
else:
fav_nums = 0
comment_nums = response.xpath(
"//a[@href='#article-comment']/span/text()").extract()[0]
match_com = re.match(".*(\d+).*", comment_nums)
if match_com:
comment_nums = int(match_com.group(1))
else:
comment_nums = 0
content = response.xpath('//div[@class="entry"]').extract()[0]
article_item["url_object_id"] = get_md5(response.url) #这里对地址进行了md5变成定长
article_item["title"] = title
article_item["url"] = response.url
try:
create_date = datetime.datetime.strptime(create_date,
'%Y/%m/%d').date()
except Exception as e:
create_date = datetime.datetime.now().date()
article_item["create_date"] = create_date
article_item["front_image_url"] = [front_image_url]
article_item["praise_nums"] = int(praise_nums)
article_item["fav_nums"] = fav_nums
article_item["comment_nums"] = comment_nums
article_item["tag"] = tag
article_item['content'] = content
yield article_item
def parse_detail(self, response):
#-----------<<itemload方法>>------------------
item_loader = ItemLoader(item = JobBoleArticleItem(),response=response)
front_image_url = response.meta.get("front_image_url", "")
item_loader.add_css("title", ".entry-header h1::text")
item_loader.add_value("url", response.url)
item_loader.add_value("url_object_id", get_md5(response.url))
item_loader.add_css("create_date", "p.entry-meta-hide-on-mobile::text")
item_loader.add_value("front_image_url", [front_image_url])
item_loader.add_css("praise_nums", ".vote-post-up h10::text")
item_loader.add_css("comment_nums", "a[href='#article-comment'] span::text")
item_loader.add_css("fav_nums", ".bookmark-btn::text")
item_loader.add_css("tags", "p.entry-meta-hide-on-mobile a::text")
#item_loader.add_css("content", "div.entry")
article_item = item_loader.load_item()
yield article_item
def parse_detail(self, response):
"""
解析目标页面的内容
:param response:
:return:
"""
# 方式一: 新建一个Item，直接往里面填value(不推荐，可扩展性不强)
# article_item = JobBoleArticleItem()
#
# front_image_url = response.meta.get('front_img_url', '')
# title = response.css('div.entry-header > h1::text').extract()[0]
# create_date = response.css('p.entry-meta-hide-on-mobile::text').extract()[0].strip().replace('·', '').strip()
# praise_nums = int(response.css('div.post-adds h10::text').extract()[0])
# fav_nums = response.css('.bookmark-btn::text').extract()[0]
# match_re = re.match('.*?(\d+).*', fav_nums)
# if match_re:
# fav_nums = int(match_re.group(1))
# else:
# fav_nums = 0
# comment_nums = response.css("a[href='#jobbole-comment'] > span::text").extract()[0]
# match_re = re.match('.*?(\d+).*', comment_nums)
# if match_re:
# comment_nums = int(match_re.group(1))
# else:
# comment_nums = 0
# content = response.css('div.entry').extract()[0]
# tags = '-'.join([tag for tag in response.css('p.entry-meta-hide-on-mobile a::text').extract() if not tag.endswith(" ")])
#
# article_item['url'] = response.url
# article_item['url_object_id'] = get_md5(response.url)
# article_item['title'] = title
# try:
# create_date = datetime.datetime.strptime(create_date, '%Y/%m/%d').date()
# except:
# create_date = datetime.datetime.now().date()
# article_item['create_date'] = create_date
# article_item['front_image_url'] = [front_image_url]
# article_item['praise_nums'] = praise_nums
# article_item['fav_nums'] = fav_nums
# article_item['comment_nums'] = comment_nums
# article_item['content'] = content
# article_item['tags'] = tags
# 方式二: 通过ItemLoader加载Item，建立processors流水线来处理数据
item_loader = ArticleItemLoader(item=JobBoleArticleItem(),
response=response)
item_loader.add_value('url', response.url)
item_loader.add_value('url_object_id', get_md5(response.url))
item_loader.add_css('title', 'div.entry-header > h1::text')
item_loader.add_css('create_date', 'p.entry-meta-hide-on-mobile::text')
item_loader.add_value('front_image_url',
[response.meta.get('front_img_url', '')])
item_loader.add_css('praise_nums', 'div.post-adds h10::text')
item_loader.add_css('fav_nums', '.bookmark-btn::text')
item_loader.add_css('comment_nums',
"a[href='#jobbole-comment'] > span::text")
item_loader.add_css('content', 'div.entry')
item_loader.add_css('tags', 'p.entry-meta-hide-on-mobile a::text')
article_item = item_loader.load_item()
yield article_item
def parse_detail(self, response):
'''
article_item = JobboleItem()
# 提取文章的具体字段
# 文章图片
front_image_url = response.meta.get("front_image_url", "")
#文章标题
title = response.css('.entry-header h1::text').extract_first()
# title = response.xpath("//div[@class='entry-header']/h1/text()").extract_first()
# 创建时间
create_time = response.css('.entry-meta-hide-on-mobile::text').extract_first().strip().replace(' ·', '')
# create_time = response.xpath('//p[@class="entry-meta-hide-on-mobile"]/text()').extract()[0].strip().replace(' ·', '')
# 点赞数量
vote_nums = response.css('.vote-post-up h10::text').extract_first()
# vote_nums = response.xpath('//span[contains(@class,"vote-post-up")]/h10/text()').extract_first()
if vote_nums:
vote_nums = int(vote_nums)
else:
vote_nums = 0
# 收藏数量
mark_nums = response.css('.bookmark-btn::text').extract_first()
# mark_nums = response.xpath('//span[contains(@class,"bookmark-btn")]/text()').extract_first()
match_re = re.match('.*?(\d+).*?', mark_nums)
if match_re:
mark_nums = int(match_re.group(1))
else:
mark_nums = 0
# 评论数量
comment_nums = response.css('.btn-bluet-bigger.href-style.hide-on-480::text').extract_first()
# comment_nums = response.xpath('//span[@class="btn-bluet-bigger href-style hide-on-480"]/text()').extract_first()
match_re = re.match('.*?(\d+).*?', comment_nums)
if match_re:
comment_nums = int(match_re.group(1))
else:
comment_nums = 0
# 文章内容，这里只提取HTML
connent = response.css('.entry').extract_first()
# content = response.xpath('//div[@class="entry"]').extract_first()
# 标签
tags_list = response.css('.entry-meta-hide-on-mobile a::text').extract()
# tags = response.xpath('//p[@class="entry-meta-hide-on-mobile"]/a/text()').extract()
tags_list = [element for element in tags_list if not element.strip().endswith("评论")]
tags = ','.join(tags_list)
article_item["title"] = title
article_item["url"] = response.url
try:
create_time = datetime.datetime.strptime(create_time, '%Y/%m/%s').date()
except Exception as e:
create_time = datetime.datetime.now().date()
article_item["create_time"] = create_time
article_item["vote_nums"] = vote_nums
article_item["mark_nums"] = mark_nums
article_item["comment_nums"] = comment_nums
article_item["content"] = connent
article_item["tags"] = tags
article_item["front_image_url"] = [front_image_url]
article_item["url_object_id"] = get_md5(response.url)
'''
# 通过itemloader加载item
front_image_url = response.meta.get("front_image_url", "")
item_loader = ArticleItemLoader(item=JobboleItem(), response=response)
item_loader.add_css("title", ".entry-header h1::text")
# item_loader.add_xpath()
item_loader.add_value('url', response.url)
item_loader.add_value('url_object_id', get_md5(response.url))
item_loader.add_value('front_image_url', [front_image_url])
item_loader.add_css('create_time', '.entry-meta-hide-on-mobile::text')
item_loader.add_css('vote_nums', '.vote-post-up h10::text')
item_loader.add_css('mark_nums', '.bookmark-btn::text')
item_loader.add_css('comment_nums', '.btn-bluet-bigger.href-style.hide-on-480::text')
item_loader.add_css('tags', '.entry-meta-hide-on-mobile a::text')
item_loader.add_css('content', '.entry')
article_item = item_loader.load_item()
yield article_item
def parse_detail(self, response):
article_item = JobboleItem()
# 提取文章的具体字段
# title = response.xpath('//div[@class="entry-header"]/h1/text()').extract_first("")
# create_date = response.xpath("//p[@class='entry-meta-hide-on-mobile']/text()").extract()[0].strip().replace("·","").strip()
# praise_nums = response.xpath("//span[contains(@class, 'vote-post-up')]/h10/text()").extract()[0]
# fav_nums = response.xpath("//span[contains(@class, 'bookmark-btn')]/text()").extract()[0]
# match_re = re.match(".*?(\d+).*", fav_nums)
# if match_re:
# fav_nums = match_re.group(1)
#
# comment_nums = response.xpath("//a[@href='#article-comment']/span/text()").extract()[0]
# match_re = re.match(".*?(\d+).*", comment_nums)
# if match_re:
# comment_nums = match_re.group(1)
#
# content = response.xpath("//div[@class='entry']").extract()[0]
#
# tag_list = response.xpath("//p[@class='entry-meta-hide-on-mobile']/a/text()").extract()
# tag_list = [element for element in tag_list if not element.strip().endswith("评论")]
# tags = ",".join(tag_list)
# 通过css选择器提取字段
# front_image_url = response.meta.get("front_image_url", "") #文章封面图
# title = response.css(".entry-header h1::text").extract()[0]
# create_date = response.css("p.entry-meta-hide-on-mobile::text").extract()[0].strip().replace("·","").strip()
# praise_nums = response.css(".vote-post-up h10::text").extract()[0]
# fav_nums = response.css(".bookmark-btn::text").extract()[0]
# match_re = re.match(".*?(\d+).*", fav_nums)
# if match_re:
# fav_nums = int(match_re.group(1))
# else:
# fav_nums = 0
#
# comment_nums = response.css("a[href='#article-comment'] span::text").extract()[0]
# match_re = re.match(".*?(\d+).*", comment_nums)
# if match_re:
# comment_nums = int(match_re.group(1))
# else:
# comment_nums = 0
#
# content = response.css("div.entry").extract()[0]
#
# tag_list = response.css("p.entry-meta-hide-on-mobile a::text").extract()
# tag_list = [element for element in tag_list if not element.strip().endswith("评论")]
# tags = ",".join(tag_list)
#
# article_item["url_object_id"] = get_md5(response.url)
# article_item['title'] = title
# article_item['url'] = response.url
# # 把字符串日期转换为date对象
# try:
# create_date = datetime.datetime.strptime(create_date, "%Y/%m/%d").date()
# except Exception as e:
# create_date = datetime.datetime.now().date()
# article_item['create_date'] = create_date
# article_item['front_image_url'] = [front_image_url]
# article_item['praise_nums'] = int(praise_nums)
# article_item['comment_nums'] = comment_nums
# article_item['fav_nums'] = fav_nums
# article_item['tags'] = tags
# article_item['content'] = content
# print(article_item)
# 通过item loader加载item
front_image_url = response.meta.get("front_image_url", "") # 文章封面图
# ArticleItemLoader是自定义的itemloader,只取数组第一个
item_loader = ArticleItemLoader(item=JobboleItem(), response=response)
# item_loader = ItemLoader(item=JobboleItem(), response=response)
item_loader.add_css("title", ".entry-header h1::text")
item_loader.add_value("url", response.url)
item_loader.add_value("url_object_id", get_md5(response.url))
item_loader.add_css("create_date", "p.entry-meta-hide-on-mobile::text")
item_loader.add_value("front_image_url", [front_image_url])
item_loader.add_css("praise_nums", ".vote-post-up h10::text")
item_loader.add_css("comment_nums",
"a[href='#article-comment'] span::text")
item_loader.add_css("fav_nums", ".bookmark-btn::text")
item_loader.add_css("tags", "p.entry-meta-hide-on-mobile a::text")
item_loader.add_css("content", "div.entry")
article_item = item_loader.load_item()
yield article_item
