今天使用python写了一个简单的爬虫,用来下载taptap网站的游戏截图。下面说下具体的实现方法。

在搜索框中搜索“原神”

 

 

 

打开浏览器的开发者选项,从详情按钮里面跳转到游戏的页面,点击详情之后,跳转页面

 

 

 

 这时候看到,浏览器地址:https://www.taptap.com/app/168332,tap官网的域名加上app/和图一的游戏id,可以使用re模块正则表达式模块从接口中获取到这个id

x_ua = 'V=1&PN=WebApp&LANG=zh_CN&VN_CODE=4&VN=0.1.0&LOC=CN&PLT=PC&DS=Android&UID=97bb961f-bf03-4c7a-8cd7-8d6d8655d9c8&DT=PC'

def search(game_name):
    """根据游戏名搜索提取出游戏id"""
    url = 'https://www.taptap.com/webapiv2/mix-search/v1/by-keyword'
    data = {
        'kw': f'{game_name}',
        'X-UA' : x_ua
        # 'X-UA': 'V=1&PN=WebApp&LANG=zh_CN&VN_CODE=4&VN=0.1.0&LOC=CN&PLT=PC&DS=Android&UID=97bb961f-bf03-4c7a-8cd7-8d6d8655d9c8&DT=PC'
    }
    r = requests.get(url=url, params=data)

    pattern = re.compile('"type":"app","identification":"app:(.+?)"', re.S)
    r1 = pattern.findall(r.text)
    #从response中提取游戏id
    return r1[0]

 

然后打开开发者选项观察接口,可以从这个接口中获取到游戏截图的链接,

 

 

 

 

把数据json格式化一下,可以发现在data下,"screenshots"下的“orignal_url”就是截图的链接。使用json.load转换成字典,就可以比较方便的取出内容了。

 

 

 

   url = f'https://www.taptap.com/webapiv2/app/v2/detail-by-id/{search(game_name)}'
    r = requests.get(url=url, params={'X-UA': x_ua})
    data = json.loads(r.text)
    #转换为字典格式
    original_url = data.get('data').get('screenshots')
    #提取出截图url

之后使用一个循环将图片保存到本地

        for i in original_url:
            time.sleep(0.5)
            game_original_url = i.get('original_url')
            print(game_original_url, type(game_original_url))
            respones = requests.get(game_original_url)
            img = respones.content
            file_name = game_original_url[-36: -4]
            screenshots = os.path.join(os.path.dirname(__file__), f'screenshots/{game_name}')
            if not os.path.exists(screenshots):
                os.makedirs(screenshots)
            file_path = os.path.join(screenshots, file_name)
            with open(file_path + '.png', 'wb') as f:
                f.write(img)

 

完整代码:

import os
import requests
import json
import re
import time

x_ua = 'V=1&PN=WebApp&LANG=zh_CN&VN_CODE=4&VN=0.1.0&LOC=CN&PLT=PC&DS=Android&UID=97bb961f-bf03-4c7a-8cd7-8d6d8655d9c8&DT=PC'

def search(game_name):
    """根据游戏名搜索提取出游戏id"""
    url = 'https://www.taptap.com/webapiv2/mix-search/v1/by-keyword'
    data = {
        'kw': f'{game_name}',
        'X-UA' : x_ua
        # 'X-UA': 'V=1&PN=WebApp&LANG=zh_CN&VN_CODE=4&VN=0.1.0&LOC=CN&PLT=PC&DS=Android&UID=97bb961f-bf03-4c7a-8cd7-8d6d8655d9c8&DT=PC'
    }
    r = requests.get(url=url, params=data)

    pattern = re.compile('"type":"app","identification":"app:(.+?)"', re.S)
    r1 = pattern.findall(r.text)
    #从response中提取游戏id
    return r1[0]

def download_screenshots(game_name):
    url = f'https://www.taptap.com/webapiv2/app/v2/detail-by-id/{search(game_name)}'
    r = requests.get(url=url, params={'X-UA': x_ua})
    data = json.loads(r.text)
    #转换为字典格式
    original_url = data.get('data').get('screenshots')
    #提取出截图url
    try:
        for i in original_url:
            time.sleep(0.5)
            game_original_url = i.get('original_url')
            print(game_original_url, type(game_original_url))
            respones = requests.get(game_original_url)
            img = respones.content
            file_name = game_original_url[-36: -4]
            screenshots = os.path.join(os.path.dirname(__file__), f'screenshots/{game_name}')
            if not os.path.exists(screenshots):
                os.makedirs(screenshots)
            file_path = os.path.join(screenshots, file_name)
            with open(file_path + '.png', 'wb') as f:
                f.write(img)

    except:
        print('下载失败')

if __name__ == '__main__':
    download_screenshots('lol')

 

posted on 2021-04-29 00:16  LiuYJ1  阅读(530)  评论(0编辑  收藏  举报