Scrapy FormRequest.from_response错误

Question

我正试图从“https://pagesjaunes.fr”中删除数据。 我为了从pagesjaunes中抓取数据：电子邮件，地址等我首先要提交数据

当我在网络中搜索chrome debuger以查看发送的表单数据时，我可以看到一堆可能由javascript动态生成的数据。

这是我的蜘蛛的python代码：

import scrapy
from scrapy_splash import SplashRequest
class PagesJaunes(scrapy.Spider):
    name="pagesjaunes"
    allowed_domains = [".fr", ".com"]
    start_urls = ["https://www.pagesjaunes.fr"]

    def parse(self, response):
        return scrapy.FormRequest.from_response(response,
        formdata = {
            "quoiqui": "macon",
            "ou":"bordeaux"
        },
        callback = self.parse_page2)

    def parse_page2(self, response):
        self.logger.info("%s page visited", response.url)

但它向我显示了这个错误：

2017-12-12 13:33:11 [scrapy.utils.log] INFO: Scrapy 1.4.0 started (bot: scrapybot)
2017-12-12 13:33:11 [scrapy.utils.log] INFO: Overridden settings: {'EDITOR': '/usr/bin/nano', 'SPIDER_LOADER_WARN_ONLY': True}
2017-12-12 13:33:11 [scrapy.middleware] INFO: Enabled extensions:
['scrapy.extensions.corestats.CoreStats',
 'scrapy.extensions.telnet.TelnetConsole',
 'scrapy.extensions.memusage.MemoryUsage',
 'scrapy.extensions.logstats.LogStats']
2017-12-12 13:33:11 [scrapy.middleware] INFO: Enabled downloader middlewares:
['scrapy.downloadermiddlewares.httpauth.HttpAuthMiddleware',
 'scrapy.downloadermiddlewares.downloadtimeout.DownloadTimeoutMiddleware',
 'scrapy.downloadermiddlewares.defaultheaders.DefaultHeadersMiddleware',
 'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware',
 'scrapy.downloadermiddlewares.retry.RetryMiddleware',
 'scrapy.downloadermiddlewares.redirect.MetaRefreshMiddleware',
 'scrapy.downloadermiddlewares.httpcompression.HttpCompressionMiddleware',
 'scrapy.downloadermiddlewares.redirect.RedirectMiddleware',
 'scrapy.downloadermiddlewares.cookies.CookiesMiddleware',
 'scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware',
 'scrapy.downloadermiddlewares.stats.DownloaderStats']
2017-12-12 13:33:11 [scrapy.middleware] INFO: Enabled spider middlewares:
['scrapy.spidermiddlewares.httperror.HttpErrorMiddleware',
 'scrapy.spidermiddlewares.offsite.OffsiteMiddleware',
 'scrapy.spidermiddlewares.referer.RefererMiddleware',
 'scrapy.spidermiddlewares.urllength.UrlLengthMiddleware',
 'scrapy.spidermiddlewares.depth.DepthMiddleware']
2017-12-12 13:33:11 [scrapy.middleware] INFO: Enabled item pipelines:
[]
2017-12-12 13:33:11 [scrapy.core.engine] INFO: Spider opened
2017-12-12 13:33:11 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2017-12-12 13:33:11 [scrapy.extensions.telnet] DEBUG: Telnet console listening on 127.0.0.1:6023
2017-12-12 13:33:12 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://www.pagesjaunes.fr> (referer: None)
2017-12-12 13:33:13 [scrapy.spidermiddlewares.offsite] DEBUG: Filtered offsite request to 'www.pagesjaunes.fr': <POST https://www.pagesjaunes.fr/annuaire/chercherlespros?hp=1>
2017-12-12 13:33:13 [scrapy.core.engine] INFO: Closing spider (finished)
2017-12-12 13:33:13 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 216,
 'downloader/request_count': 1,
 'downloader/request_method_count/GET': 1,
 'downloader/response_bytes': 19575,
 'downloader/response_count': 1,
 'downloader/response_status_count/200': 1,
 'finish_reason': 'finished',
 'finish_time': datetime.datetime(2017, 12, 12, 11, 33, 13, 22520),
 'log_count/DEBUG': 3,
 'log_count/INFO': 7,
 'memusage/max': 52523008,
 'memusage/startup': 52523008,
 'offsite/domains': 1,
 'offsite/filtered': 1,
 'request_depth_max': 1,
 'response_received_count': 1,
 'scheduler/dequeued': 1,
 'scheduler/dequeued/memory': 1,
 'scheduler/enqueued': 1,
 'scheduler/enqueued/memory': 1,
 'start_time': datetime.datetime(2017, 12, 12, 11, 33, 11, 466154)}

我是否设置了蜘蛛错误或者我是否需要一种方法来捕获所有表单数据？

Answer 1

它使用像

这样的网址

https://www.pagesjaunes.fr/annuaire/chercherlespros?quoiqui=‌​macon&ou=Bordeaux&pa‌​ge=2

因此您可以使用字符串格式化

轻松生成它

?quoiqui={}&ou={}&page={}

我使用start_requests()在开始时向start_urls添加一些网址。

顺便说一句：我使用完整的域名来正确地工作

allowed_domains = ["www.pagesjaunes.fr", "www.pagesjaunes.com"]

编辑：我将新元素添加到代码

工作示例（不创建项目）

import scrapy

class MySpider(scrapy.Spider):

    name="myspider"

    allowed_domains = ["www.pagesjaunes.fr", "www.pagesjaunes.com"]

    start_urls = []

    def start_requests(self):

        url = 'https://www.pagesjaunes.fr/annuaire/chercherlespros?quoiqui={}&ou={}&page={}'

        for page in range(5):
            yield scrapy.Request(url.format('macon', 'bordeaux', page)) #, callback=self.parse)


    def parse(self, response):

        self.logger.info("%s page visited", response.url)

        print('parse url >>>', response.url)

        for item in response.css('article'):
            title = item.css('.denomination-links ::text').extract_first().strip()
            tel = item.css('.bi-contact-tel strong ::text').extract_first().strip()

            email = item.css('.hidden-phone.SEL-email a ::attr(data-pjlb)').extract_first()
            if email:
                email = email[8:-17]
                email = base64.b64decode(email)
                url = response.joinurl(email)
                yield scrapy.Response(url, callback=parse_email, meta={'title': title, 'tel': tel})

            print('title', title, ', tel', tel, 'email:', email)

            yield {'title': title, 'tel': tel, 'email:': email}

    def parse_email(self, response):

        print('parse_email url  >>>', response.url)
        print('parse_email meta >>>', response.meta)

# --- it runs without project and saves in `output.csv` ---

from scrapy.crawler import CrawlerProcess

c = CrawlerProcess({
    'USER_AGENT': 'Mozilla/5.0',
    'FEED_FORMAT': 'csv',
    'FEED_URI': 'output.csv',
})
c.crawl(MySpider)
c.start()

许多请求（超过1000页）之后

编辑它已被服务器阻止

(403) <GET https://www.pagesjaunes.fr/annuaire/chercherlespros?quoiqui=macon&ou=bordeaux&page=3>

显示