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首先splash环境搭建：

https://blog.csdn.net/weixin_43343144/article/details/88022756

安装splash可能报的错误：

https://blog.csdn.net/weixin_43343144/article/details/89305941

pipenv install scrapy-splash

splash官方文档：

https://splash.readthedocs.io/en/stable/api.html#render-html

scrapy-splash官方文档：

https://github.com/scrapy-plugins/scrapy-splash

别人翻译的scrapy-splash文章：

https://www.e-learn.cn/content/qita/800748

scrapy-splash使用总结【使用SplashRequest代替了Request就可以抓取动态js页面了。SplashRequest就是继承了Request类增加了一些配置动态js的参数，使用起来和抓取静态页面原理是一样的，就是多了一个splash动态解析！】

settings.py配置文件：

SPLASH_URL ='http://192.168.99.100:8050'

//在settings文件DOWNLOADER_MIDDLEWARES选项中增加下面三个
DOWNLOADER_MIDDLEWARES = {
    'scrapy_splash.SplashCookiesMiddleware': 723,
    'scrapy_splash.SplashMiddleware': 725,
    'scrapy.downloadermiddlewares.httpcompression.HttpCompressionMiddleware': 810,
}

//在settings文件SPIDER_MIDDLEWARES选项中增加下面这个
SPIDER_MIDDLEWARES = {
    'scrapy_splash.SplashDeduplicateArgsMiddleware': 100,
}

DUPEFILTER_CLASS = 'scrapy_splash.SplashAwareDupeFilter'
HTTPCACHE_STORAGE = 'scrapy_splash.SplashAwareFSCacheStorage'

quotes.py爬虫文件：

# -*- coding: utf-8 -*-
import scrapy
from scrapy_splash import SplashRequest,SplashResponse
from scrapy.http import Request,Response


class QuotesSpider(scrapy.Spider):
    name = 'quotes'
    allowed_domains = ['quotes.toscrape.com']
    # start_urls = ['http://quotes.toscrape.com/js/']
    url = "http://quotes.toscrape.com/js"


    def start_requests(self):
        # 利用SplashRequest对象直接可以读取动态js页面(前提必须搭建好了splash环境)
        # SplashRequest其实就是继承了Request,并实现了splash的集成！
        yield SplashRequest(url=self.url,args={"images":0,"timeout":30})


    def parse(self, response):
        res = response #type:Response
        quotes = res.css("div.quote .text::text").getall()
        pass