selenium 智能等待ajax完成调用

selenium 智能等待ajax完成调用   使用webdriverwater    传入一个lambda表达式  判断 ajax调用转台   当 jquery。active==0 表示ajax调用完成  仅在jquery中有效

参数 30 表示最长等待时间 为30秒 超过30秒 调用没完成 报错

参数 driver 是指 一个webdriver对象  eg：driver = webdriver.PhantomJS()

lamda表达式 可以理解为python的匿名函数  s表示的是参数  具体指的就是driver了

WebDriverWait(driver, 30).until(lambda s: s.execute_script("return jQuery.active == 0"))

 

 

# -*- coding: utf-8 -*-
import random
import time
import sys
import os
import mypack.text
import mypack.getredis
reload(sys) 
sys.setdefaultencoding('utf8')

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.action_chains import ActionChains 
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

ABSPATH=os.path.abspath(sys.argv[0]) 
ABSPATH=os.path.dirname(ABSPATH)+"/"
driver = webdriver.PhantomJS()
#driver = webdriver.Chrome()
driver.implicitly_wait(10)

QgoodsId='2003'
#n=mypack.text.number(ABSPATH+"txt/1.txt")

for i in range(0, 1000):
	openid=mypack.getredis.openid()
	url='http://XXXX/goods.php?id='+QgoodsId+'&openid='+openid
	print url
	driver.get(url)
	#formbuy=driver.find_element_by_xpath('//*[@id="ECS_FORMBUY"]/div[2]/ul[2]')
	#取得颜色的值 知道有多少种颜色
	#colortext=formbuy.text
	#colors=len(colortext.split("\n"))
	#if colors>2:
	#	Qstring=random.randint(2,colors)
	#elif colors==2:
	#	Qstring=2
	#else:
	#	print '没有颜色'
	Qstring=random.randint(2,3)
	#随机点击颜色
	Qcolor=driver.find_element_by_xpath('//*[@id="ECS_FORMBUY"]/div[2]/ul[2]/li['+str(Qstring)+']/a')
	Qcolor.click()
	WebDriverWait(driver, 30).until(lambda s: s.execute_script("return jQuery.active == 0"))
	sizeArray=['220','225','230','235','240','245','250']
	for i in range(0, 7):
		Qsize=driver.find_element_by_xpath('//*[@id="'+sizeArray[i]+'"]')
		act_class=Qsize.get_attribute("class")
		pflag=False
		#有class代码没库存
		if act_class:
			continue
		else:
			#代码有库存
			pflag=True
			break
	#如果找不到有尺码的库存则返回
	if pflag==False:
		#print '没有库存'
		continue	
	Qsize.click()
	driver.find_element_by_xpath('//*[@id="buy"]').click()
	try:
		WebDriverWait(driver, 30).until(lambda driver: driver.current_url.find('**')!=-1 or driver.current_url.find('cart')!=-1)
	except (ValueError, IndexError) as e:  
		continue
	if driver.current_url.find('**')!=-1:	
		driver.find_element_by_xpath('/html/body/div[3]/ul/li[1]/button').click()
	if driver.current_url.find('**')!=-1:
		continue
	try:
		WebDriverWait(driver, 30).until(lambda driver: driver.current_url.find('XXXX')!=-1 or driver.current_url.find('XXX')!=-1)
	except (ValueError, IndexError) as e:  
		continue	
	if driver.current_url.find('XXX')!=-1:
		peopername=unicode("***")
		telphone=unicode("***")
		address=unicode("***")
		driver.find_element_by_xpath('//*[@id="theForm"]/div[1]/ul[1]/li[2]/input').send_keys(peopername)
		driver.find_element_by_xpath('//*[@id="theForm"]/div[1]/ul[2]/li[2]/input').send_keys(telphone)
		driver.find_element_by_xpath('//*[@id="theForm"]/div[1]/ul[4]/li[2]/input').send_keys(address)
		driver.find_element_by_xpath('//*[@id="selProvinces"]/option[3]').click()
		driver.find_element_by_xpath("//*[@id=\"selCities\"]/option[3]").click()
		driver.find_element_by_xpath("//*[@id=\"selDistricts\"]/option[3]").click()
		driver.find_element_by_xpath('//*[@id="alter"]').click()
		# WebDriverWait(driver, 30).until(lambda driver:driver.find_element_by_xpath('/html/body/div[2]/div[2]/button[2]').is_displayed())
		# time.sleep(0.5)
		# driver.find_element_by_xpath('/html/body/div[2]/div[2]/button[2]').click()
	try:
		WebDriverWait(driver, 30).until(lambda driver:driver.current_url.find('***')!=-1)
	except (ValueError, IndexError) as e:  
		continue
	if driver.current_url.find('***')!=-1:
		driver.find_element_by_xpath('//*[@id="theForm"]/div[5]/ul/li/button').submit()
	try:
		WebDriverWait(driver, 30).until(lambda driver:driver.current_url.find('***')!=-1)
	except (ValueError, IndexError) as e:  
		continue
	continue
driver.quit()

 谢绝转载