day03

#京东商品查询 selenium实现
import time
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
driver = webdriver.Chrome(r'D:\Python\Scripts\chromedriver.exe')

try:
    driver.implicitly_wait(10)
    driver.get('https://wwww.jd.com/')
    input = driver.find_element_by_id('key')
    input.send_keys('墨菲定律')
    input.send_keys(Keys.ENTER)

    time.sleep(1)

    list = driver.find_elements_by_class_name('gl-item')
    for i in list:
        i_name = i.find_element_by_css_selector('.p-name em').text
        # 商品链接
        i_url = i.find_element_by_css_selector('.p-name a').get_attribute('href')
        #商品价格
        i_price = i.find_element_by_class_name('p-price').text
        print(f"""
        
        
            商品名称:{i_name}
            商品链接:{i_url}
            商品价格:{i_price}
        
        
        """)
        data = f"""
        
        
            商品名称:{i_name}
            商品链接:{i_url}
            商品价格:{i_price}
        
        
        """
        with open('商品信息.txt','a',encoding='utf-8') as f:
            f.write(data)
    print("商品信息写入完成!!!!!")

finally:
    driver.close()
#爬虫高级import time

from selenium import webdriver
from selenium.webdriver.common.keys import Keys

def get_x (driver):
    try:
        js_code = """
            window.scrollTo(0, 5000)
        """
        driver.execute_script(js_code)      #执行下拉功能的js代码
        #执行下拉之后需等待加载页面
        time.sleep(2)

        list = driver.find_elements_by_class_name('gl-item')
        for i in list:
            i_name = i.find_element_by_css_selector('.p-name em').text
            # 商品链接
            i_url = i.find_element_by_css_selector('.p-name a').get_attribute('href')
            # 商品价格
            i_price = i.find_element_by_class_name('p-price').text
            i_commit = i.find_element_by_class_name('p-commit').text
            print(f"""


                商品名称:{i_name}
                商品链接:{i_url}
                商品价格:{i_price}
                商品评价:{i_commit}

            """)
            data = f"""


                商品名称:{i_name}
                商品链接:{i_url}
                商品价格:{i_price}
                商品评价:{i_commit}

            """
            with open('商品信息.txt', 'a', encoding='utf-8') as f:
                f.write(data)
        print("商品信息写入完成!!!!!")
        b_next = driver.find_element_by_class_name('pn-next')
        b_next.click()
        time.sleep(5)
        get_x(driver)
    finally:
        driver.close()


if __name__ == '__main__':
    driver = webdriver.Chrome(r'D:\Python\Scripts\chromedriver.exe')
    try:
        driver.implicitly_wait(10)
        driver.get('https://wwww.jd.com/')
        input = driver.find_element_by_id('key')
        input.send_keys('墨菲定律'
)
        input.send_keys(Keys.ENTER)
        get_x(driver)
    finally:
        driver.close()

#selenium交互
from selenium import webdriver
from selenium.webdriver.common.keys import Keys #键盘按键操作
from selenium.webdriver.support.wait import WebDriverWait #等待页面加载某些元素
import time
from selenium.webdriver import ActionChains
driver = webdriver.Chrome(r'D:\Python\Scripts\chromedriver.exe')

# try:
#     driver.implicitly_wait(10)
#     driver.get('https://wwww.jd.com/')
#     # #click clear操作
#     # input = driver.find_element_by_id('key')
#     # input.send_keys('GTX')
#     # send = driver.find_element_by_class_name('button')
#     # send.click()
#     # time.sleep(1)
#     # input2 = driver.find_element_by_id('key')
#     # input2.clear()
#     # input2.send_keys('墨菲定律')
#     # input2.send_keys(Keys.ENTER)
#     # time.sleep(3)

#
#
# finally:
#     driver.close()


#Actions Chains  操作一系列设定好的动作
try:
    driver.implicitly_wait(10)
    driver.get('https://www.runoob.com/try/try.php?filename=jqueryui-api-droppable')
    time.sleep(5)

    #获取动作对象
    action = ActionChains(driver)

    #iframe 切换
    # driver.switch_to_frame()
    driver.switch_to.frame('iframeResult')
    time.sleep(1)
    src = driver.find_element_by_id('draggable')
    tge = driver.find_element_by_id('droppable')
    #方式一:秒移
    #拟定好了一个动作,需要调用执行方法(perform)
    # action.drag_and_drop(src,tge).perform()
    # time.sleep(10)

    #方式二:缓慢移动(防反爬)
        #1.找滑块的移动位置和距离
    #找到滑动距离
    # src.location 位置(xy坐标)
    # src.size  大小
    # src.text  文本
    # src.tag_name 名称

    #滑动距离
    distance = tge.location['x'] - src.location['x']
    #点住目标
    ActionChains(driver).click_and_hold(src).perform()
    s = 0
    while s < distance:
        ActionChains(driver).move_by_offset(xoffset = 5,yoffset = 0).perform()
        s += 5
        time.sleep(0.1)
    #松开滑块
    ActionChains(driver).release()
finally:
    driver.close()

#bs4选择器
html_doc = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="sister"><b>$37</b></p>
<p class="story" id="p">Once upon a time there were three little sisters; and their names were
<a href="http://example.com/elsie" class="sister" >Elsie</a>,
<a href="http://example.com/lacie" class="sister" id="link2">Lacie</a> and
<a href="http://example.com/tillie" class="sister" id="link3">Tillie</a>;
and they lived at the bottom of a well.</p>

<p class="story">...</p>
"""
from bs4 import BeautifulSoup

soup = BeautifulSoup(html_doc, 'lxml')
# print(soup)
# print(type(soup))
# 遍历文档树
# 1、直接使用  *****
print(soup.html)
print(type(soup.html))
print(soup.a)
print(soup.p)

# 2、获取标签的名称
print(soup.a.name)

# 3、获取标签的属性   *****
print(soup.a.attrs)  # 获取a标签中所有的属性
print(soup.a.attrs['href'])

# 4、获取标签的文本内容  *****
print(soup.p.text)  # $37

# 5、嵌套选择
print(soup.html.body.p)

# 6、子节点、子孙节点
print(soup.p.children)  # 返回迭代器对象
print(list(soup.p.children))  # [<b>$37</b>]

# 7、父节点、祖先节点
print(soup.b.parent)
print(soup.b.parents)
print(list(soup.b.parents))

# 8、兄弟节点  （sibling: 兄弟姐妹）
print(soup.a)
# 获取下一个兄弟节点
print(soup.a.next_sibling)

# 获取下一个的所有兄弟节点,返回的是一个生成器
print(soup.a.next_siblings)
print(list(soup.a.next_siblings))

# 获取上一个兄弟节点
print(soup.a.previous_sibling)
# 获取上一个的所有兄弟节点，返回的是一个生成器
print(list(soup.a.previous_siblings))

#bs4安装与简单使用

from bs4 import BeautifulSoup


html_doc = """
<html><head><title>The Dormouse's story</title></head>
<body>
<p class="sister"><b>$37</b></p>

<p class="story" id="p">Once upon a time there were three little sisters; and their names were
<a href="http://example.com/elsie" class="sister" >Elsie</a>,
<a href="http://example.com/lacie" class="sister" id="link2">Lacie</a> and
<a href="http://example.com/tillie" class="sister" id="link3">Tillie</a>;
and they lived at the bottom of a well.</p>

<p class="story">...</p>
"""

soup = BeautifulSoup(html_doc,'lxml')
print(soup)
print(type(soup))

html = soup.prettify()
print(html)

#bs4搜索文档树
from bs4 import BeautifulSoup
import re
html_doc = """
<html><head><title>The Dormouse's story</title></head><body><p class="sister"><b>$37</b></p><p class="story" id="p">Once upon a time there were three little sisters; and their names were<a href="http://example.com/elsie" class="sister" >Elsie</a><a href="http://example.com/lacie" class="sister" id="link2">Lacie</a> and<a href="http://example.com/tillie" class="sister" id="link3">Tillie</a>and they lived at the bottom of a well.</p><p class="story">...</p>
"""


soup = BeautifulSoup(html_doc,'lxml')
# p = soup.find(name = 'p')
# p_s = soup.find_all(name='p')
# print(p)
# print(p_s)
# a = soup.find(name = re.compile('a'))
# a_all = soup.find_all(name = re.compile('a'))
# print(a)
# print(a_all)
#
# link = soup.find(attrs={"id" : re.compile('link')})
#
# link_a = soup.find_all(attrs={"id" : re.compile('link')})
#
# print(link)
# print(link_a)

"""
    字符串过滤器 find的方法中(name,attrs,text)
"""
# p = soup.find(name = 'p')
# p_s = soup.find_all(name='p')
# print(p)
# print(p_s)

#name + attrs
# p = soup.find(name='p',attrs= {'id' : 'p'})
# print(p)

#name + text
# tag = soup.find(name='title',text="The Dormouse's story")
# print(tag)

#name + attrs + text
# tag = soup.find(name='a',attrs={"class":re.compile('si')},text="Elsie")
# tag = soup.find(name='a',attrs={"class":"sister"},text="Elsie")
# print(tag)

"""
-正则过滤器
re模块器       需导入re库
"""
#name
#根据re模块匹配带有a的节点
# a = soup.find(name=re.compile('a'))
# print(a)
# a_s = soup.find_all(name=re.compile('a'))
# print(a_s)

posted @ 2019-07-03 21:02 Coder_HK 阅读(102) 评论(0) 收藏举报

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