selenium网页截图和截图定位（无界面）phantomjs

phantomjs是一款软件，需要重新安装。

参考：

https://blog.csdn.net/liyahui_3163/article/details/79064108

案例代码：

from selenium import webdriver
import time
from PIL import Image

driver = webdriver.PhantomJS(r"D:\zzl\biancheng\phantomjs-2.1.1-windows\bin\phantomjs.exe")
driver.get('https://www.baidu.com/')
time.sleep(3)

# 演示一：全网页截图
# driver.save_screenshot('screenshot.png')
# driver.quit()

# 演示二：定位区块截图
driver.save_screenshot(r'photo.png')  # 一次截图：形成全图
baidu = driver.find_element_by_id('su')  # 截图按钮百度一下
# baidu = driver.find_element_by_xpath("//div[@id='lg']/img[@class='index-logo-src']") #截图百度logo图片
# print(baidu)
left = baidu.location['x']  # 区块截图左上角在网页中的x坐标
top = baidu.location['y']  # 区块截图左上角在网页中的y坐标
right = left + baidu.size['width']  # 区块截图右下角在网页中的x坐标
bottom = top + baidu.size['height']  # 区块截图右下角在网页中的y坐标
# print({"left": left, "top": top, "right": right, "bottom ": bottom})
# print("baidu.size['width']:%s" % baidu.size['width'])
# print("baidu.size['height']:%s" % baidu.size['height'])
picture = Image.open(r'photo.png')
picture = picture.crop((left, top, right, bottom))  # 二次截图：形成区块截图
picture.save(r'photo2.png')
driver.quit()

　　

延伸：

phantomjs出bug的解决方法：（截图找bug）

driver = webdriver.PhantomJS()
driver.set_window_size(1920,1080)
try:
    driver.get('http://whatsmyuseragent.com/')

except Exception,e:
    driver.save_screenshot('screenshot.png')

driver.close()