def parse(self, response):
try:
jsonObj = json.loads(response.text)
print('抓取新闻数目', len(jsonObj['data']))
for data in jsonObj['data']:
jsonNowObj = json.loads(data['content'])
print(jsonNowObj['title'])
missionBean = MissionBean(response.url, 0, ['train_rank'])
missionBean.title = jsonNowObj['title']
missionBean.info = jsonNowObj
missionBean.info.update({
'news_type': '头条热点流',
'resource': '头条推荐流'
})
if missionBean.info.get('tag') == 'ad':
print('这是个广告,过滤')
continue
self.client.save(missionBean)
finally:
ipDict = getRandomOneIP()
yield Request(url=response.url,
headers=self.headers,
dont_filter=True,
meta={
'proxy':
'http://' + ipDict['ip'] + ':' + ipDict['port']
})
def parse_item(self, response):
i = 0
bodys = response.xpath('//table[@class="list-table"]/tr')
for body in bodys:
if body.xpath('.//td[@class="first"]').extract():
items = {}
num = body.xpath(
'.//td[@class="first"]/span/text()').extract_first()
title = body.xpath(
'.//td[@class="keyword"]/a/text()').extract_first()
href = body.xpath(
'.//td[@class="keyword"]/a/@href').extract_first()
focus_num = body.xpath(
'.//td[@class="last"]/span/text()').extract_first()
items['index'] = num
items['title'] = title
items['news_type'] = '百度' + response.meta['news_type']
items['url'] = href
items['num'] = int(focus_num)
items['focus_num'] = focus_num
items['resource'] = '百度'
print(items)
i = i + 1
try:
missionBean = MissionBean(href, 500, ['train_hotword'])
missionBean.title = title
missionBean.info = items
self.client.save(missionBean)
except:
print("存储数据库出现异常")
traceback.print_exc()
print('本次抓取个数{}'.format(i))
self.sleepMyself()
def parse_item(self, response):
info = response.request.info
html = response.body.decode()
match = self.get_addr(html)
if len(match) > 0:
info['videoUrl'] = match[0]
else:
return
bs4 = BeautifulSoup(response.text, 'html.parser')
info['img'] = bs4.select_one("div[id=\"poster\"]").select_one('img')['src']
missionBean = MissionBean(response.url, 3, ['fishing_new'])
missionBean.html = html
missionBean.title = info['title']
missionBean.info = info
self.client.save(missionBean)
def parse_item(self, response):
info = response.request.info
html = response.text
bs4 = BeautifulSoup(html, "html.parser")
content = bs4.select_one('div[class=\"content\"]').prettify()
info['content'] = content
missionBean = MissionBean(response.url, 1001, ['qutoutiao'])
missionBean.info = info
missionBean.html = html
missionBean.title = info['title']
# 组装正式版Bean
newsBean = NewsBean()
newsBean.titleInfo = info['title']
newsBean.content = info['content']
newsBean.url = response.url
newsBean.newsId = info['id']
newsBean.tags = info['tag']
newsBean.etc = {'news_type': info['type']}
newsBean.fromChannel = self.TYPE_DICT.get(int(info['type']), '其他')
newsBean.fromSpider = '推荐流'
newsBean.fromType = 8
newsBean.goodNum = int(info['like_num'])
newsBean.commentNum = int(info['comment_count'])
newsBean.readNum = int(info['read_count'])
newsBean.mediaName = info['source_name']
newsBean.mediaId = info['source_name']
newsBean.introduction = info['introduction']
newsBean.imgUrls = info['cover']
newsBean.shareNum = info['share_count']
missionBean.info = newsBean.__dict__
# 其中publishDate和createTime由于redis的格式问题
# TODO 只能传递时间戳
newsBean.publishDate = datetime.datetime.fromtimestamp(
int(info['publish_time']) / 1000).timestamp()
newsBean.createTime = newsBean.createTime.timestamp()
daoFilterAndSave.MongoFilterSave(missionBean)
def parse(self, response):
try:
if 'top.baidu' in response.url:
modes = response.xpath(
'//div[@class="hblock"]/ul/li/a/@href').extract()
for mode in modes[1:]:
news_type = response.xpath(
'//div[@class="hblock"]/ul/li[{}]/a/@title'.format(
str(1 + modes.index(mode)))).extract_first()
yield Request(url=self.baidu_mainurl + mode[1:],
callback=self.parse_item,
dont_filter=True,
meta={'news_type': news_type},
priority=2)
if 'weibo' in response.url:
rhtml = response.xpath('//script/text()').extract(
) # 变量瞎定义的，大家将就着看，获取整个页面的script的字符串信息。
htm = rhtml[8] # 获取目标ID为realtimehot的Table的脚本信息，为什么是8呢？我在页面数的。
start = htm.find("(")
substr = htm[start + 1:-1] # 截取脚本里面的json串信息。
html = json.loads(substr)['html']
bs4 = BeautifulSoup(html, 'html.parser')
trTags = bs4.select('tr[action-type=\"hover\"]')
print("发现潜在词数量", len(trTags))
for trTag in trTags:
dictInfo = {}
dictInfo['index'] = trTag.find('em').string
dictInfo['title'] = trTag.find('p',
class_='star_name').a.string
dictInfo['url'] = trTag.find(
'p', class_='star_name').a.get('href')
dictInfo['resource'] = '微博'
try:
dictInfo['num'] = int(
trTag.find('p', class_='star_num').span.string)
except:
dictInfo['num'] = -1
missionBean = MissionBean(dictInfo['url'], 501,
['train_hotword'])
missionBean.title = str(dictInfo['title'])
if 'realtimehot' in response.url:
missionBean.info = {'news_type': '微博热搜'}
if 'socialevent' in response.url:
missionBean.info = {'news_type': '微博新时代'}
missionBean.info.update(dictInfo)
print(missionBean.title)
self.client.save(missionBean)
if 'news.163' in response.url:
typeName0 = '163'
bs4 = BeautifulSoup(response.text, "html.parser")
items = bs4.select_one("div[class=\"area areabg1\"]")
i = 0
for titleBarTag in items.select("div[class=\"titleBar\"]"):
# 这个网站比较奇怪，是并列关系，第n个titleBar对应第n个left和right
typeName1 = titleBarTag.select_one("h2").get_text() # 分类名
"""
左侧分类【点击榜】
"""
areaLeftTag = items.select(
'div[class=\"area-half left\"]')[i]
typeName2 = areaLeftTag.select_one("h2").get_text()
liTags = items.select(
"div[class=\"title-tab\"]")[i].select('li')
j = 0
for li in liTags:
typeName3 = li.get_text()
# print(str(areaLeftTag))
tableTag = areaLeftTag.select('table')[j]
for newsTag in tableTag.select("tr"):
# 标题行不抓取
if "标题" in newsTag.get_text():
continue
infoDict = {}
infoDict['title'] = newsTag.select_one(
'a').get_text()
infoDict['index'] = int(
newsTag.select("td")[0].select_one(
"span").get_text())
infoDict['num'] = int(
newsTag.select("td")[1].get_text())
infoDict['upOrDown'] = -1
infoDict['url'] = newsTag.select_one('a')['href']
infoDict[
'news_type'] = typeName0 + typeName1 + typeName2 + typeName3
infoDict['resource'] = '163'
missionBean = MissionBean(response.url, 510,
['train_hotword'])
missionBean.info = infoDict
self.client.save(missionBean)
j = j + 1
"""
右侧分类【跟帖榜】
"""
areaLeftTag = items.select(
'div[class=\"area-half right\"]')[i]
typeName2 = areaLeftTag.select_one("h2").get_text()
liTags = items.select(
"div[class=\"title-tab\"]")[i].select('li')
j = 0
for li in liTags:
typeName3 = li.get_text()
# print(str(areaLeftTag))
tableTag = areaLeftTag.select('table')[j]
for newsTag in tableTag.select("tr"):
# 标题行不抓取
if "标题" in newsTag.get_text():
continue
infoDict = {}
infoDict['title'] = newsTag.select_one(
'a').get_text()
infoDict['index'] = int(
newsTag.select("td")[0].select_one(
"span").get_text())
infoDict['num'] = int(
newsTag.select("td")[1].get_text())
infoDict['upOrDown'] = -1
infoDict['url'] = newsTag.select_one('a')['href']
infoDict[
'news_type'] = typeName0 + typeName1 + typeName2 + typeName3
infoDict['resource'] = '163'
missionBean = MissionBean(response.url, 511,
['train_hotword'])
missionBean.info = infoDict
self.client.save(missionBean)
j = j + 1
i = i + 1
if 'api.1sapp' in response.url:
jsonBean = json.loads(response.text)
print(jsonBean)
for i, news in enumerate(jsonBean['data']['data']):
items = {}
parseUrl = urlparse(response.url)
strParseQs = parseUrl[4]
res = parse.parse_qs(strParseQs)
pageNum = int(res.get('page')[0])
limitNum = int(res.get('limit')[0])
items['index'] = i + 1 + (pageNum - 1) * limitNum
items['title'] = news['title']
items['news_type'] = '趣头条推荐流'
items['url'] = news['url']
items['num'] = 10000 - items['index']
items['num1'] = int(news['read_count'])
items['num2'] = int(news['share_count'])
items['resource'] = '趣头条'
missionBean = MissionBean(items['url'], 500,
['train_hotword'])
missionBean.title = items['title']
missionBean.info = items
self.client.save(missionBean)
except:
traceback.print_exc()
finally:
print("正在添加新任务至队列头部")
request = Request(url=response.url, dont_filter=True)
yield request