Question

python htmlunit怎么定位元素

Answer 1

用打开浏览器的方式（如火狐）测试代码如下，该代码来源虫师博客，调试通过
from selenium import webdriver
from selenium.common.exceptions import NoSuchElementException
from selenium.webdriver.common.keys import Keys
import time

browser = webdriver.Firefox() # Get local session of firefox
browser.get("http://www.yahoo.com") # Load page
assert "Yahoo" in browser.title
elem = browser.find_element_by_name("p") # Find the query box
elem.send_keys("seleniumhq" + Keys.RETURN)
time.sleep(0.2) # Let the page load, will be added to the API
try:
browser.find_element_by_xpath("//a[@data-bk='5174.1']")
print"ok，test is pass!"
except NoSuchElementException:
assert 0, "can't find seleniumhq"
browser.close()

运行结果：ok，test is pass！

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若觉得慢，可以用HtmlUnit
from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities #（1）
from selenium.common.exceptions import NoSuchElementException
from selenium.webdriver.common.keys import Keys
import time

browser = webdriver.Remote(desired_capabilities=DesiredCapabilities.HTMLUNIT) #（2）
#browser = webdriver.DesiredCapabilities.HTMLUNIT() # Get local session of firefox
browser.get("http://www.yahoo.com") # Load page
assert "Yahoo" in browser.title
elem = browser.find_element_by_name("p") # Find the query box
elem.send_keys("seleniumhq" + Keys.RETURN)
time.sleep(0.2) # Let the page load, will be added to the API
try:
browser.find_element_by_xpath("//a[@data-bk='5174.1']")
print"ok"
except NoSuchElementException:
assert 0, "can't find seleniumhq"
browser.close()

运行结果：ok
p.s. （1），（2）两处目前还不太明白，但程序调通，以后慢慢理解。
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