def read_single_goods_item(self, element: WebElement) \
-> (Item, None):
"""
:param element:
A item of the list witch gain by method: get_goods_list().
:return:
An instance of Item or None, if an error occurred.
"""
item = Item()
# 起止时间
item.data_begin_time = time.time()
# 获取颜色标题及所选项目值（详情列表不存在的）
# 获取版本标题及所选项目值（详情列表不存在的）
# 获取商品url
item.url = self.get_item_url(element)
# 获取价格
item.price = self.get_price(element)
if item.price == -1:
logging.warning("JdListPageReader:Get price is -1\n" + item.url)
return None
# 获取plus会员价格（详情列表不存在的）
# 领券（详情列表不存在的）
# 库存:京东不显示库存量，只有有无货之分（详情列表不存在的）
# 快递费:京东各省价格均不同，有货情况也不同故不做记录（详情列表不存在的）
# 销量
item.sales_amount = self.get_sales_amount(element)
# 可选字段（详情列表不存在的）
# 生成所有字段（详情列表不存在的）
item.generate_all_specification()
return item
def read_item(self, browser: selenium.webdriver.Chrome) -> (Item, None):
"""
method:
Rely the supplied jd item detail page. the method format read in info and then return a
item instance.
:param
browser: an instance of browser which includes Chrome/Edge/FireFox etc.
cautiously, the browser current page must be a commodity detail page.
:return:
"""
# TODO:有可能无货/链接无效
if not self.is_jd_detail_page(browser):
logging.info("[JdDetailPageReader.read_item]"
" Current page is't detail page:", browser.title)
return None # 判断是否是详情页
item = Item()
# 获取颜色标题及所选项目值
color_dom = self.get_color_dom(browser)
if color_dom is not None and len(color_dom) != 0:
color_title_str = color_dom[0].text # 获取标题
color_selected_str = color_dom[1].find_element(By.CLASS_NAME, "selected").text # 获取已选值
item.spec1 = color_title_str + '=' + color_selected_str
else:
# 某些单一款不需要选颜色
pass
# 获取版本标题及所选项目值
edition_dom = self.get_edition_dom(browser)
if edition_dom is not None and len(edition_dom) != 0:
edition_title_str = edition_dom[0].text
edition_selected_str = edition_dom[1].find_element(By.CLASS_NAME, "selected").text
item.spec2 = edition_title_str + '=' + edition_selected_str
else:
# 说明不需要选择型号，或者说没有型号信息
pass
# 获取商品url,可能因加载中等失败
try:
item.url = browser.current_url
except TimeoutException:
logging.warning('Get url failed! at method:JdDetailReader.read_item()')
return None
# 获取价格
item.price = self.get_price(browser)
if item.price == -1:
logging.warning("JdDetailPageReader:Get price is -1\n" + item.url)
return None
# 获取plus会员价格
item.plus_price = self.get_plus_price(browser)
# 领券
ticket_dom = self.get_ticket_dom(browser)
if ticket_dom is not None and len(ticket_dom) != 0:
ticket_str = ''
for ti in ticket_dom:
ticket_str += ti.text + '\n'
item.ticket = ticket_str
# 库存:京东不显示库存量，只有有无货之分
# 快递费:京东各省价格均不同，有货情况也不同故不做记录
# 销量
item.sales_amount = self.get_remark(browser)
# 可选字段
# 生成所有字段
item.generate_all_specification()
return item