教你用python爬取王者荣耀英雄皮肤图片，并将图片保存在各自英雄的文件夹中。（附源码）

代码展示：

保存在各自的文件夹中

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让我们开始爬虫之路

开发环境

windows 10
python3.6

开发工具

pycharm
webdriver

库

os，re，lxml，jsonpath

打开王者荣耀官网点击游戏资料

判断是同步加载还是异步加载, 可以确定为异步加载

点击XHR继续抓包，ename为英雄的ID，cname为英雄的名字

jsonpath获取

# 第一次请求，获取hero_id hero_name response = requests.get(start_url, headers=headers).json() # pprint(response) hero_ids = jsonpath.jsonpath(response, '$..ename') # pprint(hero_ids) hero_names = jsonpath.jsonpath(response, '$..cname') # pprint(hero_names) 

构造英雄地址

hero_info_url = r’https://pvp.qq.com/web201605/herodetail/{}.shtml’.format(hero_id)

driver访问每一个英雄地址，获取源码，etree解析，xpath提取hero_skin_names，hero_skin_urls

    for hero_name, hero_id in zip(hero_names, hero_ids): hero_info_url = r'https://pvp.qq.com/web201605/herodetail/{}.shtml'.format(hero_id) # 发送英雄详情页请求得到 hero_info_content driver.get(hero_info_url) # 获取页面源码 hero_info_content = driver.page_source # 解析网页 hero_info_content_str = etree.HTML(hero_info_content) # 提取 hero_skin_names hero_skin_urls hero_skin_names = hero_info_content_str.xpath(r'//ul[@class="pic-pf-list pic-pf-list3"]/@data-imgname')[ 0].split('|') hero_skin_urls = hero_info_content_str.xpath(r'//ul[@class="pic-pf-list pic-pf-list3"]//img/@data-imgname') 

遍历hero_skin_urls地址，获取图片的二进制数据，最后进行保存，创建英雄的文件夹，将皮肤图片保存在各自的文件夹中

# 补全hero_skin_url地址 hero_skin_url = r'https:'+hero_skin_url # 获取图片的二进制信息 img_content = requests.get(hero_skin_url, headers=headers).content try: # 创建文件夹 if not os.path.exists('./{}'.format(hero_name)): os.mkdir(r'./{}'.format(hero_name)) with open(r'./{}/{}.jpg'.format(hero_name, hero_skin_name), 'wb')as f: f.write(img_content) print('图片正在下载：{}/{}.jpg'.format(hero_name, hero_skin_name)) except Exception as e: continue 

在执行时本来是以requests库进行获取英雄页面的源码，但是发生报错，报错原因是因为编码问题，所以采用webdriver访问每个英雄页面，driver.page_source获取源码，然后进行数据提取。

源码展示

# !/usr/bin/nev python # -*-coding:utf8-*- import requests, os, jsonpath, re from selenium import webdriver from pprint import pprint from lxml import etree def main(): start_url = r'https://pvp.qq.com/web201605/js/herolist.json' headers = { 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) ' 'Chrome/87.0.4280.88 Safari/537.36', 'Referer': 'https://pvp.qq.com/web201605/herolist.shtml' } driver = webdriver.Chrome(executable_path=r'D:\python\chromedriver.exe') # 第一次请求，获取hero_id hero_name hero_skin_names response = requests.get(start_url, headers=headers).json() # pprint(response) hero_ids = jsonpath.jsonpath(response, '$..ename') # pprint(hero_ids) hero_names = jsonpath.jsonpath(response, '$..cname') # pprint(hero_names) for hero_name, hero_id in zip(hero_names, hero_ids): hero_info_url = r'https://pvp.qq.com/web201605/herodetail/{}.shtml'.format(hero_id) # 发送英雄详情页请求得到 hero_info_content driver.get(hero_info_url) # 获取页面源码 hero_info_content = driver.page_source # lxml解析 hero_info_content_str = etree.HTML(hero_info_content) # 提取 hero_skin_names hero_skin_urls hero_skin_names = hero_info_content_str.xpath(r'//ul[@class="pic-pf-list pic-pf-list3"]/@data-imgname')[ 0].split('|') hero_skin_urls = hero_info_content_str.xpath(r'//ul[@class="pic-pf-list pic-pf-list3"]//img/@data-imgname') # hero_skin_name进行替换不必要的信息 for hero_skin_name, hero_skin_url in zip(hero_skin_names, hero_skin_urls): suffix_notation = re.findall(r'&\d.?', hero_skin_name)[0] hero_skin_name = hero_skin_name.replace(suffix_notation, '') # 补全hero_skin_url地址 hero_skin_url = r'https:'+hero_skin_url # 获取图片的二进制信息 img_content = requests.get(hero_skin_url, headers=headers).content try: # 创建文件夹 if not os.path.exists('./{}'.format(hero_name)): os.mkdir(r'./{}'.format(hero_name)) with open(r'./{}/{}.jpg'.format(hero_name, hero_skin_name), 'wb')as f: f.write(img_content) print('图片正在下载：{}/{}.jpg'.format(hero_name, hero_skin_name)) except Exception as e: continue if __name__ == '__main__': main()