Question

我正在开发一个项目，必须登录该网站后才能对其进行刮取。但是，登录后我到达仪表板即http://app.bmiet.net/student/login，我已经成功登录了该网站。我必须从http://app.bmiet.net/student/dashboard抓取数据。我不确定如何从仪表板转到考勤链接，这就是我需要帮助的地方。我仍在学习使用scrapy，因此不确定是否可以做到。请帮助我编写代码，并告诉我我的错误是什么。代码如下。

import scrapy
from scrapy.http import FormRequest
from scrapy.utils.response import open_in_browser



class spidey(scrapy.Spider):
    name = 'spidyy'
    start_urls = [
        'http://app.bmiet.net/student/login'
    ]

    def parse(self, response):
        token = response.css('form input::attr(value)').extract_first()
        return FormRequest.from_response(response, formdata={
            'csrf_token' : token,
             'username' : '//Username//',
             'password' : '//password//'
        }, callback = self.start_scrapping)

    def start_scrapping(self, response):
        open_in_browser(response)
        all = response.css('.table-hover td')
        for x in all:
            att = x.css('td:nth-child(2)::text').extract()
            sub = x.css('td~ td+ td::text').extract()
            yield {
                'Subject': sub,
                'Status': att
            }

注意：出于明显原因，删除了用户名和密码

这就是我爬行蜘蛛时得到的。

2020-03-21 19:38:50 [scrapy.core.engine] INFO: Spider opened
2020-03-21 19:38:50 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2020-03-21 19:38:50 [scrapy.extensions.telnet] INFO: Telnet console listening on 127.0.0.1:6023
2020-03-21 19:38:52 [scrapy.core.engine] DEBUG: Crawled (200) <GET http://app.bmiet.net/robots.txt> (referer: None)
2020-03-21 19:38:52 [scrapy.core.engine] DEBUG: Crawled (200) <GET http://app.bmiet.net/student/login> (referer: None)
2020-03-21 19:38:53 [scrapy.downloadermiddlewares.redirect] DEBUG: Redirecting (302) to <GET http://app.bmiet.net/student/dashboard> from <POST http://app.bmiet.net/student/stud
ent-login>
2020-03-21 19:38:54 [scrapy.core.engine] DEBUG: Crawled (200) <GET http://app.bmiet.net/student/dashboard> (referer: http://app.bmiet.net/student/login)
2020-03-21 19:38:55 [scrapy.core.engine] INFO: Closing spider (finished)

无法使用抓取功能从页面上转到另一个页面

0 个答案: