import pymongo
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]
#browser = webdriver.Chrome()
browser = webdriver.PhantomJS(service_args=SERVICE_ARGS) #创建PhantomJS浏览器
wait = WebDriverWait(browser, 10)
browser.set_window_size(1400,900)
def search(): #请求页面
print('正在搜索。。。')
try:
browser.get('https://world.taobao.com/') #请求淘宝首页
input = wait.until(
EC.presence_of_element_located((By.CSS_SELECTOR, '#mq'))
)
submit = wait.until(EC.element_to_be_clickable((By.CSS_SELECTOR,'#J_PopSearch > div.sb-search > div > form > input[type="submit"]:nth-child(2)')))
input.send_keys(KEYWORD)
submit.click()
total = wait.until(EC.presence_of_element_located((By.CSS_SELECTOR,'#mainsrp-pager > div > div > div > div.total')))
get_products()
return total.text
except TimeoutError:
total = search()
print(total)
def next_page(page_number): #翻页操作
print('正在翻页。。。',page_number)
try:
input = wait.until(
EC.presence_of_element_located((By.CSS_SELECTOR, '#mainsrp-pager > div > div > div > div.form > input'))#判断页面是否加载出输入框
)
submit = wait.until(EC.element_to_be_clickable(
(By.CSS_SELECTOR, '#mainsrp-pager > div > div > div > div.form > span.btn.J_Submit'))) #判断是否加载出搜索按钮
input.clear()
input.send_keys(page_number)
submit.click()
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)))
#在做结果判断的时候,经常想判断某个元素中是否存在指定的文本,
get_products()
except TimeoutError:
next_page(next_page())
def get_products():
wait.until(EC.presence_of_element_located((By.CSS_SELECTOR, '#mainsrp-itemlist .items .item')))
html = browser.page_source #获取详情页html代码
doc = pq(html) #创建一个Pyquery对象
items = doc('#mainsrp-itemlist .items .item').items() #css选择器获取所以items ,调用items方法取得所取的内容
for item in items:
producet = {
'title': item.find('.title').text(),
'location': item.find('.location').text(),
'price':item.find('.price').text(),
'deal':item.find('.deal-cnt').text()[:-3],
'shop':item.find('.shop').text(),
'image': item.find('.pic .img').attr('src'),
}
print(producet)
save_to_monge(producet)
def save_to_monge(result):
try:
if db[MONGO_TABLE].insert(result):
print('存储成功!',result)
except Exception:
print('存储失败!',result)
def main():
try:
total = search()
total = int(re.compile('(\d+)').search(total).group(1))
for i in range(2,total+1):
next_page(i)
except Exception:
print('出错啦')
browser.close()
if __name__ == '__main__':
main()