Question

我已经成功地使用scrapy-splash加载javascript生成的html。现在我想设置一些不属于表单的输入值。只要我输入一个值，网站上的内容就会发生变化。我还没有找到设置输入值的方法并重新调整调整后的html。这可能吗？

class ExampleSpider(scrapy.Spider):
name = "example"
allowed_domains = ["example.com"]
start_urls = (
    'https://example.com',
)

def start_requests(self):
    for url in self.start_urls:
        yield scrapy.Request(url, self.parse, meta={
            'splash': {
                'endpoint': 'render.html',
                'args': {'wait': 3}
            }
        })

def parse(self, response):
    page = response.url.split("/")[-2]
    filename = 'screener-%s.html' % page
    with open(filename, 'wb') as f:
        f.write(response.body)
    self.log('Saved file %s' % filename)

Answer 1

您需要按照评论中的建议将输入放在lua_script中，按照示例单击按钮：

Illuminate\Database\Seeder::call

然后像这样执行脚本：

script ="""
        function main(splash)
           local url = splash.args.url
           assert(splash:go(url))


           assert(splash:runjs('document.getElementsByClassName("nameofbutton").click()'))
           assert(splash:wait(0.75))


           -- return result as a JSON object
           return {
               html = splash:html()
           }
        end
        """

scrapy plash设置输入值？

1 个答案: