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Python爬虫使用实例wallpaper问题记录

开发者 https://www.devze.com 2024-09-12 09:26 出处：网络 作者： 镜花照无眠
目录1/ 排雷避坑 中文乱码问题2/ 数据来源3/ 正则处理4/ 电脑壁纸 单线程单页 单线程多page 多线程多页5/ 手机壁纸 单线程单页0 单线程单页1 单线程单页 单线程多页 多线程多页1/ 排雷避坑
相关专题：Python wallpaperPython 爬虫wallpaper
目录
  • 1/ 排雷避坑
    • 中文乱码问题
  • 2/ 数据来源
    • 3/ 正则处理
      • 4/ 电脑壁纸
        • 单线程单页
        • 单线程多page
        • 多线程多页
      • 5/ 手机壁纸
        • 单线程单页0
        • 单线程单页1
        • 单线程单页
        • 单线程多页
        • 多线程多页

      1/ 排雷避坑

      中文乱码问题

      print(requests.get(url=url,headers=headers).text)

      Python爬虫使用实例wallpaper问题记录

      出现中文乱码

      原因分析：

      <meta charset="gbk" />

      解决方法：

      法一：

      response = requests.get(url=url,headers=headers)
response.encoding = response.apparent_encoding # 自动转码, 防止中文乱码
print(response.text)

      法二：

      print(requests.get(url=url,headers=headers).content.decode('gbk'))

      2/ 数据来源

      css解析

      Python爬虫使用实例wallpaper问题记录

      for li in lis:
    href = li.css('a::attr(href)').get()
    title = li.css('b::text').get()
    print(href, title)

      Python爬虫使用实例wallpaper问题记录

      Python爬虫使用实例wallpaper问题记录

      删掉标题为空的那一张图

      Python爬虫使用实例wallpaper问题记录

      获取图片url

      有的网站，保存的数据是裂开的图片，可能是因为这个参数：

      Python爬虫使用实例wallpaper问题记录

      3/ 正则处理

      处理图片url和标题的时候用了re模块

      电脑壁纸

      通过匹配非数字字符并在遇到数字时截断字符串

      title1 = selector1.css('.photo .photo-pic img::attr(title)').get()
modified_title = re.split(r'\d', title1, 1)[0].strip()

      re.split(r'\d', title, 1)将 title 字符串按第一个数字进行分割。返回的列表的第一个元素就是数字前面的部分。strip() 去掉字符串首尾的空白字符。

      url图片路径替换，因为从点开图片到达的那个页面无法得到的图片路径还是html页面，不是https://····.jpg，所以替换成另一个可以获取到的页面。

      https://sj.zol.com.cn/bizhi/detail_{num1}_{num2}.html

      正则替换修改为

      https://app.zol.com.cn/bizhi/detail_{num1}.html

      例如 https://sj.zol.com.cn/bizhi/detail_12901_139948.html 转换为 https://app.zol.com.cn/bizhi/detail_12901.html .

      # https://sj.zol.com.cn/bizhi/detail_12901_139948.html
url = "https://sj.zol.com.cn/bizhi/detail_12901_139948.html"
pattern = r'https://sj\.zol\.com\.cn/bizhi/detail_(\d+)_\d+\.html'
replacement = r'https://app.zol.com.cn/bizhi/detail_\1.html'
new_url = re.sub(pattern, replacement, url)
print(url,new_url)

      4/ 电脑壁纸

      单线程单页

      适用于当页面和第一页

      # python单线程爬取高清4k壁纸图片
import os
import re
import requests
import parsel
url = 'https://pic.netbian.com/4kmeinv/' # 请求地址
# 模拟伪装
headers = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.139 Safari/537.36'}
# response = requests.get(url=url,headers=headers)
# response.encoding = response.apparent_encoding # 自动转码, 防止中文乱码
# print(response.text)
html_data = requests.get(url=url,headers=headers).content.decode('gbk')
# print(html_data)
selector = parsel.Selector(html_data)
lis = selector.css('.slist li')
for li in lis:
    #href = li.css('a::attr(href)').get()
    title = li.css('b::text').get()
    if title:
        href = 'https://pic.netbian.com' + li.css('a::attr(href)').get()
        response = requests.get(url=href, headers=headers)
        #print(href, title)
        # 这里只是获取页面
        # img_content = requests.get(url=href, headers=headers).content
        # 不可行, 都是同一张图 https://pic.netbian.com/uploads/allimg/230813/221347-16919360273e05.jpg
        href = 'https://pic.netbian.com' + li.css('a::attr(href)').get()
        response1 = requests.get(url=href, headers=headers).content.decode('gbk')
        selector1 = parsel.Selector(response1)
        # 若要标题乱码，此处可不解码
        # response1 = requests.get(url=href, headers=headers)
        # selector1 = parsel.Selector(response1.text)
        # img_url = selector1.css('.slist li img::attr(src)').get()
        # 这一步错了, 要去href页面找img_url, 这是在原来的url页面找了
        img_url = 'https://pic.netbian.com' + selector1.css('.photo .photo-pic img::attr(src)').get()
        img_content = requests.get(url=img_url,headers=headers).content
        # 顺便更新一下title, 因为原来的是半截的, 不全
        title1 = selector1.css('.photo .photo-pic img::attr(title)').get()
        modified_title = re.split(r'\d', title1, 1)[0].strip()
        with open('img\\'+modified_title+'.jpg',mode='wb') as f:
            f.write(img_content)
            #print(href, title)
            print('正在保存：', modified_title, img_url)

      单线程多page

      适用于从第二页开始的多页

      # python单线程爬取高清4k壁纸图片
import os
import re
import time
import requests
import parsel
# url的规律
# https://pic.netbian.com/new/index.html
# https://pic.netbian.com/new/index_1.html
# https://pic.netbian.com/new/index_2.html
# ...
start_time = time.time()
for page in range(2,10):
    print(f'--------- 正在爬取第{page}的内容 ----------')
    url = f'https://pic.netbian.com/4kmeinv/index_{page}.html'  # 请求地址
    # 模拟伪装
    headers = {
        'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.139 Safari/537.36'}
    # response = requests.get(url=url,headers=headers)
    # response.encoding = response.apparent_encoding # 自动转码, 防止中文乱码
    # print(response.text)
    html_data = requests.get(url=url, headers=headers).content.decode('gbk')
    # print(html_data)
    selector = parsel.Selector(html_data)
    lis = selector.css('.slist li')
    for li in lis:
        # href = li.css('a::attr(href)').get()
        title = li.css('b::text').get()
        if title:
            href = 'https://pic.netbian.com' + li.css('a::attr(href)').get()
            response = requests.get(url=href, headers=headers)
            # print(href, title)
            # 这里只是获取页面
            # img_content = requests.get(url=href, headers=headers).content
            # 不可行, 都是同一张图 https://pic.netbian.com/uploads/allimg/230813/221347-16919360273e05.jpg
            href = 'https://pic.netbian.com' + li.css('a::attr(href)').get()
            response1 = requests.get(url=href, headers=headers).content.decode('gbk')
            selector1 = parsel.Selector(response1)
            # 若要标题乱码，此处可不解码
            # response1 = requests.get(url=href, headers=headers)
            # selector1 = parsel.Selector(response1.text)
            # img_url = selector1.css('.slist li img::attr(src)').get()
            # 这一步错了, 要去href页面找img_url, 这是在原来的url页面找了
            img_url = 'https://pic.netbian.com' + selector1.css('.photo .photo-pic img::attr(src)').get()
            img_content = requests.get(url=img_url, headers=headers).content
            # 顺便更新一下title, 因为原来的是半截的, 不全
            title1 = selector1.css('.photo .photo-pic img::attr(title)').get()
            modified_title = re.split(r'\d', tit编程客栈le1, 1)[0].strip()
            with open('img\\' + modified_title + '.jpg', mode='wb') as f:
                f.write(img_content)
                # print(href, title)
                print('正在保存：', modified_title, img_url)
stop_time = time.time()
print(f'耗时：{int(stop_time)-int(start_time)}秒')

      运行效果：

      Python爬虫使用实例wallpaper问题记录

      Python爬虫使用实例wallpaper问题记录

      多线程多页

      # python多线程爬取高清4k壁纸图片
import os
import re
import time
import requests
import parsel
import concurrent.futures
def get_img(url):
    # 模拟伪装
    headers = {
        'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.139 Safari/537.36'}
    # response = requests.get(url=url,headers=headers)
    # response.encoding = response.apparent_encoding # 自动转码, 防止中文乱码
    # print(response.text)
    html_data = requests.get(url=url, headers=headers).content.decode('gbk')
    # print(html_data)
    selector = parsel.Selector(html_data)
    lis = selector.css('.slist li')
    for li in lis:
        # href = li.css('a::attr(href)').get()
        title = li.css('b::text').get()
        if title:
            href = 'https://pic.netbian.com' + li.css('a::attr(href)').get()
            response = requests.get(url=href, headers=headers)
            # print(href, title)
            # 这里只是获取页面
            # img_content = requests.get(url=href, headers=headers).content
            # 不可行, 都是同一张图 https://pic.netbian.com/uploads/allimg/230813/221347-16919360273e05.jpg
            href = 'https://pic.netbian.com' + li.css('a::attr(href)').get()
            response1 = requests.get(url=href, headers=headers).content.decode('gbk')
            selector1 = parsel.Selector(response1)
            # 若要标题乱码，此处可不解码
            # response1 = requests.get(url=href, headers=headers)
            # selector1 = parsel.Selector(response1.text)
            # img_url = selector1.css('.slist li img::attr(src)').get()
            # 这一步错了, 要去href页面找img_url, 这是在原来的url页面找了
            img_url = 'https://pic.netbian.com' + selector1.css('.photo .photo-pic img::attr(src)').get()
            img_content = requests.get(url=img_url, headers=headers).content
            # 顺便更新一下title, 因为原来的是半截的, 不全
            title1 = selector1.css('.photo .photo-pic img::attr(title)').get()
            modified_title = re.split(r'\d', title1, 1)[0].strip()
            img_folder = 'img1\\'
            if not os.path.exists(img_folder):
                os.makedirs(img_folder)
            with open(img_folder + modified_title + '.jpg', mode='wb') as f:
                f.write(img_content)
                # print(href, title)
                print('正在保存：', modified_title, img_url)
def main(url):
    get_img(url)
start_time = time.time()
executor = concurrent.futures.ThreadPoolExecutor(max_workers=5)
for page in range(2, 12):
    print(f'--------- 正在爬取第{page}的内容 ----------')
    url = f'https://pic.netbian.com/4kmeinv/index_{page}.html'  # 请求地址
    executor.submit(main, url)
executor.shutdown()
stop_time = time.time()
print(f'耗时：{int(stop_time) - int(start_time)}秒')

      5/ 手机壁纸

      类似地，另一个网站，图片集合多页，点开之后里面有多张图片

      先试图获取外部的，再获取里面的，然后2个一起

      单线程单页0

      import os
import re
import requests
import parsel
url = 'https://sj.zol.com.cn/bizhi/5/' # 请求地址
# 模拟伪装
headers = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; 编程客栈Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.139 Safari/537.36'}
# response = requests.get(url=url,headers=headers)
# response.encoding = response.apparent_encoding # 自动转码, 防止中文乱码
# print(response.text)
response = requests.get(url=url,headers=headers)
#print(response.text)
selector = parsel.Selector(response.text)
lis = selector.css('.pic-list2 li')
#img_name=1
for li in lis:
    #href = li.css('a::attr(href)').get()
    title = li.css('.pic img::attr(title)').get()
    #href = li.css('.pic img::attr(src)').get()
    #print(title, href)
    if title:
        #href = 'https://sj.zol.com.cn' +li.css('a::attr(href)').get()
        # https://sj.zol.com.cn/bizhi/detail_12901_139948.html
        # https://app.zol.com.cn/bizhi/detail_12901_139948.html#p1
        #href = 'https://app.zol.com.cn' + li.css('a::attr(href)').get() + '#p1'
        href=li.css('img::attr(src)').get()
        #print(href, title)
        #href = 'https://app.zol.com.cn' + li.css('a::attr(href)').get() + '#p1'
        #response1 = requests.get(url=href, headers=headers).content.decode('utf-8')
        #selector1 = parsel.Selector(response1)
        #img_url=selector1.css('.gallery li img::attr(src)').get()
        #print(img_url)
        # 这里只是获取页面
        img_content = requests.get(url=href, headers=headers).content
        # 不可行, 都是同一张图 https://pic.netbian.com/uploads/allimg/230813/221347-16919360273e05.jpg
        # https://sj.zol.com.cn/bizhi/detail_12901_139948.html
        # https://app.zol.com.cn/bizhi/detail_12901_139948.html#p1
        #href= selector1.css('.photo-list-box li::attr(href)').get()
        #href = 'https://app.zol.com.cn' +  + '#p1'
        #response2 = requests.get(url=href, headers=headers)
        #selector2 = parsel.Selector(response2.text)
        #print(href)
        # 若要标题乱码，此处可不解码
        # response1 = requests.get(url=href, headers=headers)
        # selector1 = parsel.Selector(response1.text)
        # img_url = selector1.css('.slist li img::attr(src)').get()
        # 这一步错了, 要去href页面找img_url, 这是在原来的url页面找了
        #img_url = selector1.css('.gallery img::attr(src)').get()
        #img_content = requests.get(url=img_url, headers=headers).content
        #print(img_url)
        # 顺便更新一下title, 因为原来的是半截的, 不全
        # title1 = selector1.css('.photo .photo-pic img::attr(title)').get()
        img_folder = 'img3\\'
        if not os.path.exists(img_folder):
            os.makedirs(img_folder)
        with open(img_folder + title + '.jpg', mode='wb') as f:
            f.write(img_content)
            # print(href, title)
            print('正在保存：', title,android href)
        #img_name += 1

      单线程单页1

      # 下载子页面全部
import os
import requests
import parsel
url = 'https://app.zol.com.cn/bizhi/detail_12901.html' # 请求地址
# 模拟伪装
headers = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.139 Safari/537.36'}
response = requests.get(url=url,headers=headers)
selector = parsel.Selector(response.text)
lis = selector.css('.album-list li')
i = 0
for li in lis:
    # Get all img elements within the current li
    img_tags = li.css('img::attr(src)').getall()  # This gets all the img src attributes
    for href in img_tags:  # Iterate over all img src attributes
        img_content = requests.get(url=href, headers=headers).content
        img_folder = 'img4\\'
        if not os.path.exists(img_folder):
            os.makedirs(img_folder)
        with open(img_folder + str(i) + '.jpg', mode='wb') as f:
            f.write(img_content)
            # print(href, i)
            print('正在保存：', i, href)
        i += 1  # Increment i for each image saved

      单线程单页

      import os
import re
import requests
import parsel
url = 'https://sj.zol.com.cn/bizhi/5/' # 请求地址
# 模拟伪装
headers = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.139 Safari/537.36'}
response = requests.get(url=url,headers=headers)
#print(response.text)
selector = parsel.Selector(response.text)
#lis = selector.css('.pic-list2 li')
# 筛除包含的底部 3个 猜你喜欢
lis=selector.css('.pic-list2 .photo-list-padding')
for li in lis:
    #href = li.css('a::attr(href)').get()
    title = li.css('.pic img::attr(title)').get()
    href = li.css('a::attr(href)').get()
    #print(title, href)
    # https://sj.zol.com.cn/bizhi/detail_12901_139948.html
    #url = "https://sj.zol.com.cn/bizhi/detail_12901_139948.html"
    pattern = r'/bizhi/detail_(\d+)_\d+\.html'
    replacement = r'https://app.zol.com.cn/bizhi/detail_\1.html'
    new_url = re.sub(pattern, replacement, href)
    #print(href, new_url)
    #url = 'https://app.zol.com.cn/bizhi/detail_12901.html'  # 请求地址
    # 模拟伪装
    headers = {
        'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.139 Safari/537.36'}
    response = requests.get(url=new_url, headers=headers)
    selector = parsel.Selector(response.text)
    lis1 = selector.css('.album-list li')
    i = 0
    for li1 in lis1:
        # Get all img elements within the current li
        img_tags = li1.css('img::attr(src)').getall()  # This gets all the img src attributes
        for href in img_tags:  # Iterate over all img src attributes
            img_content = requests.get(url=href, headers=headers).content
            img_folder = 'img5\\'
            if not os.path.exists(img_folder):
                os.makedirs(img_folder)
            with open(img_folder + title+'_'+str(i) + '.jpg', mode='wb') as f:
                f.write(img_content)
                # print(href, i)
                print('正在保存：',title+'_'+str(i), href)
            i += 1  # Increment i for each image saved

      Python爬虫使用实例wallpaper问题记录

      单线程多页

      import os
import re
import requests
import parsel
for page in range(1,3):
    print(f'--------- 正在爬取第{page}的内容 ----------')
    if page==1:
        url = 'https://sj.zol.com.cn/bizhi/5/'  # 请求地址
    else:
        url = f'https://sj.zol.com.cn/bizhi/5/{page}.html'  # 请求地址
    # 模拟伪装
    headers = {
        'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.139 Safari/537.36'}
    response = requests.get(url=url, headers=headers)
    # print(response.text)
    selector = parsel.Selector(response.text)
    # lis = selector.css('.pic-list2 li')
    # 筛除包含的底部 3个 猜你喜欢
    lis = selector.css('.pic-listpython2 .photo-list-padding')
    for li in lis:
        # href = li.css('a::attr(href)').get()
        title = li.css('.pic img::attr(title)').get()
        href = li.css('a::attr(href)').get()
        # print(title, href)
        # https://sj.zol.com.cn/bizhi/detail_12901_139948.html
        # url = "https://sj.zol.com.cn/bizhi/detail_12901_139948.html"
        pattern = r'/bizhi/detail_(\d+)_\d+\.html'
        replacement = r'https://app.zol.com.cn/bizhi/detail_\1.html'
        new_url = re.sub(pattern, replacement, href)
        # print(href, new_url)
        # url = 'https://app.zol.com.cn/bizhi/detail_12901.html'  # 请求地址
        # 模拟伪装
        headers = {
            'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.139 Safari/537.36'}
        response = requests.get(url=new_url, headers=headers)
        selector = parsel.Selector(response.text)
        lis1 = selector.css('.album-list li')
        i = 0
        for li1 in lis1:
            # Get all img elements within the current li
            img_tags = li1.css('img::attr(src)').getall()  # This gets all the img src attributes
            for href in img_tags:  # Iterate over all img src attributes
                img_content = requests.get(url=href, headers=headers).content
                img_folder = 'img6\\'
                if not os.path.exists(img_folder):
                    os.makedirs(img_folder)
                with open(img_folder + title + '_' + str(i) + '.jpg', mode='wb') as f:
                    f.write(img_content)
                    # print(href, i)
                    print('正在保存：', title + '_' + str(i), href)
                i += 1  # Increment i for each image saved

      多线程多页

      import os
import re
import time
import requests
import parsel
import concurrent.futures
def get_imgs(url):
    # 模拟伪装
    headers = {
        'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.139 Safari/537.36'}
    response = requests.get(url=url, headers=headers)
    # print(response.text)
    selector = parsel.Selector(response.text)
    # lis = selector.css('.pic-list2 li')
    # 筛除包含的底部 3个 猜你喜欢
    lis = selector.css('.pic-list2 .photo-list-padding')
    for li in lis:
        # href = li.css('a::attr(href)').get()
        title = li.css('.pic img::attr(title)').get()
        href = li.css('a::attr(href)').get()
        # print(title, href)
        # https://sj.zol.com.cn/bizhi/detail_12901_139948.html
        # url = "https://sj.zol.com.cn/bizhi/detail_12901_139948.html"
        pattern = r'/bizhi/detail_(\d+)_\d+\.html'
        replacement = r'https://app.zol.com.cn/bizhi/detail_\1.html'
        new_url = re.sub(pattern, replacement, href)
        # print(href, new_url)
        # url = 'https://app.zol.com.cn/bizhi/detail_12901.html'  # 请求地址
        # 模拟伪装
        headers = {
            'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.139 Safari/537.36'}
        response = requests.get(url=new_url, headers=headers)
        selector = parsel.Selector(response.text)
        lis1 = selector.css('.album-list li')
        i = 0
        for li1 in lis1:
            # Get all img elements within the current li
            img_tags = li1.css('img::attr(src)').getall()  # This gets all the img src attributes
            for href in img_tags:  # Iterate over all img src attributes
                img_content = requests.get(url=href, headers=headers).content
                img_folder = 'img7\\'
                if not os.path.exists(img_folder):
python                    os.makedirs(img_folder)
                with open(img_folder + title + '_' + str(i) + '.jpg', mode='wb') as f:
                    f.write(img_content)
                    # print(href, i)
                    print('正在保存：', title + '_' + str(i), href)
                i += 1  # Increment i for each image saved
def main(url):
    get_imgs(url)
start_time = time.time()
executor = concurrent.futures.ThreadPoolExecutor(max_workers=4)
for page in range(1, 9):
    #print(f'--------- 正在爬取第{page}的内容 ----------')
    if page == 1:
        url = 'https://sj.zol.com.cn/bizhi/5/'  # 请求地址
    else:
        url = f'https://sj.zol.com.cn/bizhi/5/{page}.html'  # 请求地址
    executor.submit(main, url)
executor.shutdown()
stop_time = time.time()
print(f'耗时：{int(stop_time) - int(start_time)}秒')

      到此这篇关于Python爬虫使用实例-wallpaper的文章就介绍到这了,更多相关Python wallpaper内容请搜索编程客栈(www.devze.com)以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程客栈(www.devze.com)！

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