Python 不启用刮擦项目管道

我试图在Django应用程序中设置一个Scrapy spider，它从页面读取信息，并使用DjangoItems将其发布到Django的SQLite数据库中。 现在看来，scraper本身正在工作，但它并没有向数据库添加任何内容。我猜这是因为scrapy没有启用任何项目管道。以下是日志：

2019-10-05 15:23:07 [scrapy.utils.log] INFO: Scrapy 1.7.3 started (bot: scrapybot)
2019-10-05 15:23:07 [scrapy.utils.log] INFO: Versions: lxml 4.4.1.0, libxml2 2.9.5, cssselect 1.1.0, parsel 1.5.2, w3lib 1.21.0, Twisted 19.7.0, Python 3.7.4 (tags/v3.7.4:e09359112e, Jul  8 2019, 19:29:22) [MSC v.1916 32 bit (Intel)], pyOpenSSL 19.0.0 (OpenSSL 1.1.1c  28 May 2019), cryptography 2.7, Platform Windows-10-10.0.18362-SP0
2019-10-05 15:23:07 [scrapy.crawler] INFO: Overridden settings: {}
2019-10-05 15:23:07 [scrapy.extensions.telnet] INFO: Telnet Password: 6e614667b3cf5a1a
2019-10-05 15:23:07 [scrapy.middleware] INFO: Enabled extensions:
['scrapy.extensions.corestats.CoreStats',
 'scrapy.extensions.telnet.TelnetConsole',
 'scrapy.extensions.logstats.LogStats']
2019-10-05 15:23:07 [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']
2019-10-05 15:23:07 [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']
2019-10-05 15:23:07 [scrapy.middleware] INFO: Enabled item pipelines:
[]
2019-10-05 15:23:07 [scrapy.core.engine] INFO: Spider opened
2019-10-05 15:23:07 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2019-10-05 15:23:08 [scrapy.extensions.telnet] INFO: Telnet console listening on 127.0.0.1:6023
2019-10-05 15:23:08 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://www.barbora.lv/produkti/biezpiena-sierins-karums-vanilas-45-g> (referer: None)
2019-10-05 15:23:08 [scrapy.core.scraper] DEBUG: Scraped from <200 https://www.barbora.lv/produkti/biezpiena-sierins-karums-vanilas-45-g>
{'product_title': ['Biezpiena sieriņš KĀRUMS vaniļas 45g']}
2019-10-05 15:23:08 [scrapy.core.engine] INFO: Closing spider (finished)
2019-10-05 15:23:08 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 259,
 'downloader/request_count': 1,
 'downloader/request_method_count/GET': 1,
 'downloader/response_bytes': 15402,
 'downloader/response_count': 1,
 'downloader/response_status_count/200': 1,
 'elapsed_time_seconds': 0.418066,
 'finish_reason': 'finished',
 'finish_time': datetime.datetime(2019, 10, 5, 12, 23, 8, 417204),
 'item_scraped_count': 1,
 'log_count/DEBUG': 2,
 'log_count/INFO': 10,
 'response_received_count': 1,
 'scheduler/dequeued': 1,
 'scheduler/dequeued/memory': 1,
 'scheduler/enqueued': 1,
 'scheduler/enqueued/memory': 1,
 'start_time': datetime.datetime(2019, 10, 5, 12, 23, 7, 999138)}
2019-10-05 15:23:08 [scrapy.core.engine] INFO: Spider closed (finished)

管道.py

class ProductInfoPipeline(object):
  def process_item(self, item, spider):
      item.save()
      yield item

设置.py

BOT_NAME = 'scraper'

SPIDER_MODULES = ['scraper.spiders']
NEWSPIDER_MODULE = 'scraper.spiders'

ROBOTSTXT_OBEY = True

ITEM_PIPELINES = {
    'scraper.pipelines.ProductInfoPipeline': 300,
}

spider product_info.py：

import scrapy
from product_scraper.scraper.scraper.items import ScrapelogItem

class ProductInfoSpider(scrapy.Spider):
    name = 'product_info'
    allowed_domains = ['www.barbora.lv']
    start_urls = ['https://www.barbora.lv/produkti/biezpiena-sierins-karums-vanilas-45-g']

    def parse(self, response):

        item = ScrapelogItem()
        item['product_title'] = response.xpath('//h1[@itemprop="name"]/text()').extract()
        return ScrapelogItem(product_title=item["product_title"])

项目文件结构：

---

经过进一步的修补和研究，我发现我的设置文件没有正确配置（然而，这只是问题的一部分）。我根据其他资源将这些行添加到代码中（它们将Django项目设置与scrapers设置相链接）：

之后，spider没有运行，但这次它至少给出了一条关于找不到Django设置模块的错误消息。我不记得确切的语法，但它是这样的：“brocoli.settings模块找不到”

---

经过一些实验，我发现将scraper目录“scraper”从应用程序“Product_scraper”中移动到与其他应用程序相同的级别有助于解决此问题，并且一切正常。

经过进一步的修补和研究，我发现我的设置文件配置不正确（然而，这只是问题的一部分）。我根据其他资源将这些行添加到代码中（它们将Django项目设置与scrapers设置相链接）：

之后，spider没有运行，但这次它至少给出了一条关于找不到Django设置模块的错误消息。我不记得确切的语法，但它是这样的：“brocoli.settings模块找不到”

---

经过一些实验，我发现将scraper目录“scraper”从应用程序“Product_scraper”中移动到与其他应用程序相同的级别有助于解决此问题，并且一切正常。

您正在询问为什么项目管道未启用。这是唯一一个未被拾取的设置吗？是否已检查是否已选择其他设置？运行时的工作目录是否是scrapy.cfg文件所在的目录？您正在询问为什么未启用项目管道。这是唯一一个未被拾取的设置吗？是否已检查是否已选择其他设置？运行时的工作目录是否是scrapy.cfg文件所在的目录？

import scrapy
from product_scraper.scraper.scraper.items import ScrapelogItem

class ProductInfoSpider(scrapy.Spider):
    name = 'product_info'
    allowed_domains = ['www.barbora.lv']
    start_urls = ['https://www.barbora.lv/produkti/biezpiena-sierins-karums-vanilas-45-g']

    def parse(self, response):

        item = ScrapelogItem()
        item['product_title'] = response.xpath('//h1[@itemprop="name"]/text()').extract()
        return ScrapelogItem(product_title=item["product_title"])

import sys

import django

sys.path.append(os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), ".."))
os.environ['DJANGO_SETTINGS_MODULE'] = 'broccoli.settings'
django.setup()