Python selenium find_element()示例详解

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driver.find_element_by_id(‘id')

driver.find_element_by_xpath('xpath')

driver.find_element_by_link_text('link_text')

driver.find_element_by_partial_link_text('partial_link_text')

driver.find_element_by_name('name')

driver.find_element_by_tag_name('tag_name')

driver.find_element_by_class_name('class_name')

driver.find_element_by_css_selector('css_selector')

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from selenium.common.exceptions import TimeoutException

from selenium.webdriver.support.ui import WebDriverWait

from appium import webdriver

class BasePage(object):

????def split_locator(self, locator):

????????"""

????????分解定位表达式，如'css,.username',拆分后返回'css selector'和定位表达式'.username'(class为username的元素)

????????:param locator: 定位方法+定位表达式组合字符串，如'css,.username'

????????:return: locator_dict[by], value:返回定位方式和定位表达式

????????"""

????????by = locator.split(',')[0]

????????value = locator.split(',')[1]

????????locator_dict = {

????????????'id': 'id',

????????????'name': 'name',

????????????'class': 'class name',

????????????'tag': 'tag name',

????????????'link': 'link text',

????????????'plink': 'partial link text',

????????????'xpath': 'xpath',

????????????'css': 'css selector',

????????}

????????if by not in locator_dict.keys():

????????????raise NameError("wrong locator!'id','name','class','tag','link','plink','xpath','css',exp:'id,username'")

????????return locator_dict[by], value

????def wait_element(self, locator, sec=30):

????????"""

????????等待元素出现

????????:param locator: 定位方法+定位表达式组合字符串，用逗号分隔，如'css,.username'

????????:param sec:等待秒数

????????"""

????????by, value = self.split_locator(locator)

????????try:

????????????WebDriverWait(self.driver, sec, 1).until(lambda x: x.find_element(by=by, value=value),message='element not found!!!')

????????????log.info(u'等待元素：%s' % locator)

????????return True

????????except TimeoutException:

????????????return False

????????except Exception, e:

????????????raise e

?????

????def get_element(self, locator, sec=60):

????????"""

????????获取一个元素

????????:param locator: 定位方法+定位表达式组合字符串，用逗号分隔，如'css,.username'

????????:param sec:等待秒数

????????:return: 元素可找到返回element对象，否则返回False

????????"""

????????if self.wait_element(locator, sec):

????????????by, value = self.split_locator(locator)

????????????try:

????????????????element = self.driver.find_element(by=by, value=value)

????????????????log.info(u'获取元素：%s' % locator)

????????????????return element

????????????except Exception, e:

????????????????raise e

????????else:

????????????return False

????def get_elements(self, locator):

????????"""

????????获取一组元素

????????:param locator: 定位方法+定位表达式组合字符串，用逗号分隔，如'css,.username'

????????:return: elements

????????"""

????????by, value = self.split_locator(locator)

????????try:

????????????elements = WebDriverWait(self.driver, 60, 1).until(lambda x: x.find_elements(by=by, value=value))

????????????log.info(u'获取元素列表：%s' % locator)

????????????return elements

????????except Exception, e:

????????????raise e