《2018年6月3日》【连续236天】
标题:股票数据Scrapy爬虫;
内容:
按步骤建立工程,爬虫后,
stock.py代码:
import scrapy
import re
class StocksSpider(scrapy.Spider):
name = "stocks"
start_urls = ['http://quote.eastmoney.com/stocklist.html']
def parse(self, response):
for href in response.css('a::attr(href)').extract():
try:
stock = re.findall(r"[s][hz]\d{6}", href)[0]
url = 'http://gupiao.baidu.com/stock/' + stock + '.html'
yield scrapy.Request(url, callback=self.parse_stock)
except:
continue
def parse_stock(self, response):
infoDict = {}
stockInfo = response.css('.stock-bets')
name = stockInfo.css('.bets-name').extract()[0]
keyList = stockInfo.css('dt').extract()
valueList = stockInfo.css('dd').extract()
for i in range(len(keyList)):
key = re.findall(r'>.*</dt>', keyList[i])[0][1:-5]
try:
val = re.findall(r'\d+\.?.*</dd>', valueList[i])[0][0:-5]
except:
val = '--'
infoDict[key]=val
infoDict.update(
{'股票名称': re.findall('\s.*\(',name)[0].split()[0] + \
re.findall('\>.*\<', name)[0][1:-1]})
yield infoDict
pipelines.py:
class BaidustocksPipeline(object):
def process_item(self, item, spider):
return item
class BaidustocksInfoPipeline(object):
def open_spider(self, spider):
self.f = open('BaiduStockInfo.txt', 'w')
def close_spider(self, spider):
self.f.close()
def process_item(self, item, spider):
try:
line = str(dict(item)) + '\n'
self.f.write(line)
except:
pass
return item
再将setting.py中一行代码修改:
ITEM_PIPELINES = {
'BaiduStocks.pipelines.BaidustocksInfoPipeline': 300,
}