taobaoMeishiSpider 爬取淘宝美食数据

我的源码地址: https://github.com/miaochaoqing123/taobaoMeishiSpider

	from time import sleep import re
	from selenium import webdriver
	from selenium.webdriver.common.by import By
	from selenium.webdriver.support.ui import WebDriverWait
	from selenium.webdriver.support import expected_conditions as EC
	from pyquery import PyQuery as pq
	from config import *
	import pymongo
	client = pymongo.MongoClient(MONGO_URL)
	db = client[MONGO_DB]
	# driver = webdriver.Chrome()
	# 把config.py里设置的放入到PhantomJS
	driver = webdriver.PhantomJS(service_args=SERVICE_ARGS) # 用PhantomJS让程序后台运行
	# headers = {"User-Agent":"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36"}
	wait = WebDriverWait(driver, 10)
	driver.set_window_size(1366, 768)
	# 模拟输入美食和点击搜索
	def search():
	print("正在搜索.....")
	try:
	driver.get('https://www.taobao.com/')
	# 输入框
	input_tb = wait.until(
	EC.presence_of_element_located((By.ID, 'q'))
	)
	# 搜索按钮
	submit_tb = wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, '#J_TSearchForm > div.search-button > button')))
	# driver.find_element_by_css_selector('#J_TSearchForm > div.search-button > button').click()
	input_tb.send_keys('美食')
	submit_tb.click()
	# sleep(3)
	# 取出总页数
	sleep(2)
	total = wait.until(EC.presence_of_element_located((By.CSS_SELECTOR, '#mainsrp-pager > div > div > div > div.total')))
	get_products() # 调用下面的解析方法
	total = total.text
	total = int(re.compile('(\d+)').search(total).group(1))
	return total
	except TimeoutError:
	return search()
	# 下一页
	def next_page(page_number):
	print('正在翻第 '+ str(page_number) + ' 页')
	try:
	# 找到页码的输入框
	input_tb = wait.until(
	EC.presence_of_element_located((By.CSS_SELECTOR, '#mainsrp-pager > div > div > div > div.form > input'))
	)
	# 页码确定按钮
	submit_tb = wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR, '#mainsrp-pager > div > div > div > div.form > span.btn.J_Submit')))
	# driver.find_element_by_css_selector('#J_TSearchForm > div.search-button > button').click()
	input_tb.clear() # 先清除里面的数字
	input_tb.send_keys(page_number) # 再输入页码
	submit_tb.click() # 点击确认,转入到下一页
	sleep(2)
	# 判断高亮是否为本页
	wait.until(EC.text_to_be_present_in_element((By.CSS_SELECTOR, '#mainsrp-pager > div > div > div > ul > li.item.active > span'),str(page_number)))
	get_products()
	except TimeoutError:
	# 如果出现TimeoutError的错误,则继续
	next_page(page_number)
	# 解析内容
	def get_products():
	wait.until(EC.presence_of_element_located((By.CSS_SELECTOR, '#mainsrp-itemlist .items .item')))
	html = driver.page_source # 获得网页源码
	doc = pq(html)
	items = doc('#mainsrp-itemlist .items .item').items() # 得到所有的items
	for item in items:
	product = {
	'image': item.find('.pic .img').attr('src'),
	'price': item.find('.price').text(),
	'deal': item.find('.deal-cnt').text()[:-3],
	'title': item.find('.title').text(),
	'shop': item.find('.shop').text(),
	'location': item.find('.location').text()
	}
	print(product)
	save_to_mongo(product)
	def save_to_mongo(result):
	try:
	if db[MONGO_TABLE].insert(result):
	print("存储到MONGODB成功",result)
	except Exception:
	print("存储到MONGODB失败",result)
	def main():
	# 异常处理:无论程序有无出现异常,最后都要关闭浏览器
	try:
	total = search()
	print(total)
	# 用for循环遍历页码
	for i in range(2,total + 1):
	next_page(i)
	except Exception:
	print("出错了...")
	finally:
	driver.quit()
	if __name__ == '__main__':
	main()