请问是哪个文件或地方的出错，好像是JobBoleArticleItem
来源：4-15 items的定义和使用 - 2
keannen
2020-02-02
***********************************报错代码**************************************
G:\Evns\ArticleSpider\venv\Scripts\python.exe G:/Evns/ArticleSpider/main.py
2020-02-02 10:13:45 [scrapy.utils.log] INFO: Scrapy 1.8.0 started (bot: ArticleSpider)
2020-02-02 10:13:45 [scrapy.utils.log] INFO: Versions: lxml 4.4.2.0, libxml2 2.9.5, cssselect 1.1.0, parsel 1.5.2, w3lib 1.21.0, Twisted 19.10.0, Python 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:59:51) [MSC v.1914 64 bit (AMD64)], pyOpenSSL 19.1.0 (OpenSSL 1.1.1d 10 Sep 2019), cryptography 2.8, Platform Windows-10-10.0.17134-SP0
2020-02-02 10:13:45 [scrapy.crawler] INFO: Overridden settings: {'BOT_NAME': 'ArticleSpider', 'NEWSPIDER_MODULE': 'ArticleSpider.spiders', 'SPIDER_MODULES': ['ArticleSpider.spiders']}
2020-02-02 10:13:45 [scrapy.extensions.telnet] INFO: Telnet Password: 5cde1b6e0a2a404d
2020-02-02 10:13:45 [scrapy.middleware] INFO: Enabled extensions:
['scrapy.extensions.corestats.CoreStats',
'scrapy.extensions.telnet.TelnetConsole',
'scrapy.extensions.logstats.LogStats']
2020-02-02 10:13:45 [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']
2020-02-02 10:13:45 [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']
2020-02-02 10:13:45 [scrapy.middleware] INFO: Enabled item pipelines:
['scrapy.pipelines.images.ImagesPipeline',
'ArticleSpider.pipelines.ArticlespiderPipeline']
2020-02-02 10:13:45 [scrapy.core.engine] INFO: Spider opened
2020-02-02 10:13:45 [scrapy.extensions.logstats] INFO: Crawled 0 pages (at 0 pages/min), scraped 0 items (at 0 items/min)
2020-02-02 10:13:45 [scrapy.extensions.telnet] INFO: Telnet console listening on 127.0.0.1:6023
2020-02-02 10:13:46 [scrapy.downloadermiddlewares.redirect] DEBUG: Redirecting (301) to <GET https://news.cnblogs.com/> from <GET http://news.cnblogs.com/>
2020-02-02 10:13:46 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://news.cnblogs.com/> (referer: None)
2020-02-02 10:13:46 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://news.cnblogs.com/n/654235/> (referer: https://news.cnblogs.com/)
2020-02-02 10:13:46 [scrapy.core.engine] DEBUG: Crawled (200) <GET https://news.cnblogs.com/NewsAjax/GetAjaxNewsInfo?contentId=654235> (referer: https://news.cnblogs.com/n/654235/)
2020-02-02 10:13:47 [scrapy.core.scraper] ERROR: Spider error processing <GET https://news.cnblogs.com/NewsAjax/GetAjaxNewsInfo?contentId=654235> (referer: https://news.cnblogs.com/n/654235/)
Traceback (most recent call last):
File "G:\Evns\ArticleSpider\venv\lib\site-packages\scrapy\utils\defer.py", line 102, in iter_errback
yield next(it)
File "G:\Evns\ArticleSpider\venv\lib\site-packages\scrapy\core\spidermw.py", line 84, in evaluate_iterable
for r in iterable:
File "G:\Evns\ArticleSpider\venv\lib\site-packages\scrapy\spidermiddlewares\offsite.py", line 29, in process_spider_output
for x in result:
File "G:\Evns\ArticleSpider\venv\lib\site-packages\scrapy\core\spidermw.py", line 84, in evaluate_iterable
for r in iterable:
File "G:\Evns\ArticleSpider\venv\lib\site-packages\scrapy\spidermiddlewares\referer.py", line 339, in <genexpr>
return (_set_referer(r) for r in result or ())
File "G:\Evns\ArticleSpider\venv\lib\site-packages\scrapy\core\spidermw.py", line 84, in evaluate_iterable
for r in iterable:
File "G:\Evns\ArticleSpider\venv\lib\site-packages\scrapy\spidermiddlewares\urllength.py", line 37, in <genexpr>
return (r for r in result or () if _filter(r))
File "G:\Evns\ArticleSpider\venv\lib\site-packages\scrapy\core\spidermw.py", line 84, in evaluate_iterable
for r in iterable:
File "G:\Evns\ArticleSpider\venv\lib\site-packages\scrapy\spidermiddlewares\depth.py", line 58, in <genexpr>
return (r for r in result or () if _filter(r))
File "G:\Evns\ArticleSpider\ArticleSpider\spiders\jobbole.py", line 81, in parse_nums
article_item["praose_nums"] = praise_nums
File "G:\Evns\ArticleSpider\venv\lib\site-packages\scrapy\item.py", line 98, in __setitem__
(self.__class__.__name__, key))
KeyError: 'JobBoleArticleItem does not support field: praose_nums'
2020-02-02 10:13:47 [scrapy.core.engine] INFO: Closing spider (finished)
2020-02-02 10:13:47 [scrapy.statscollectors] INFO: Dumping Scrapy stats:
{'downloader/request_bytes': 991,
'downloader/request_count': 4,
'downloader/request_method_count/GET': 4,
'downloader/response_bytes': 20962,
'downloader/response_count': 4,
'downloader/response_status_count/200': 3,
'downloader/response_status_count/301': 1,
'elapsed_time_seconds': 1.066412,
'finish_reason': 'finished',
'finish_time': datetime.datetime(2020, 2, 2, 2, 13, 47, 12632),
'log_count/DEBUG': 4,
'log_count/ERROR': 1,
'log_count/INFO': 10,
'request_depth_max': 2,
'response_received_count': 3,
'scheduler/dequeued': 4,
'scheduler/dequeued/memory': 4,
'scheduler/enqueued': 4,
'scheduler/enqueued/memory': 4,
'spider_exceptions/KeyError': 1,
'start_time': datetime.datetime(2020, 2, 2, 2, 13, 45, 946220)}
2020-02-02 10:13:47 [scrapy.core.engine] INFO: Spider closed (finished)
Process finished with exit code 0
3回答
-
keannen
提问者
2020-02-02
我重新看了几遍已经解决了
012020-02-03 -
keannen
提问者
2020-02-02
*************Jobbole.py*************
# -*- coding: utf-8 -*-
from urllib import parse
import scrapy #scrapy是异步io框架，没有多线程，没有引入消息队列
import requests
from ArticleSpider.utils import common
from ArticleSpider.items import JobBoleArticleItem
import re
import json
from scrapy import Request
class JobboleSpider(scrapy.Spider):
name = 'jobbole'
allowed_domains = ['news.cnblogs.com']
start_urls = ['http://news.cnblogs.com/']
def parse(self, response):
# 1、获得新闻列表页中的新闻url并交给scrapy进行下载后调用相应的解析方法
# 2、获取下一页的url并交给scrapy下载，下载完成后交给parse继续跟进
# urls = response.css('div#news_list h2 a::attr(href)').extract()
post_nodes = response.css('#news_list .news_block')[1:2]
for post_node in post_nodes:
image_url = post_node.css('.entry_summary a img::attr(src)').extract_first("")
post_url = post_node.css('h2 a::attr(href)').extract_first("")
yield Request(url=parse.urljoin(response.url,post_url),meta={"front_image_url":image_url},callback=self.parse_detail)
#提取下一页并交给scrapy进行下载
# next_url = response.css("div.pager a:last-child::text").extract_first("")
# next_url = response.xpath("//a[contains(text(),'Next >')]/@href").extract_first("")
# yield Request(url=parse.urljoin(response.url, next_url), callback=self.parse)
# if next_url == "Next >":
# next_url = response.css("div.pager a:last-child::attr(href)").extract_first("")
# yield Request(url=parse.urljoin(response.url,next_url),callback=self.parse)
def parse_detail(self,response):
match_re = re.match(".*?(\d+)",response.url)
if match_re:
post_id = match_re.group(1)
article_item = JobBoleArticleItem()
#xpath获取方式
# title = response.xpath("//*[@id='news_title']//a/text()").extract_first("")
# create_date = response.xpath("//*[@id='news_info']//*[@class='time']/text()").extract_first("")
# content = response.xpath("//*[@id='news_content']").extract()[0]
# tag_list = response.xpath("//*[@id='news_tags']//a/text()").extract()
#css获取方式
title = response.css("#news_title a::text").extract_first("")
create_date = response.css("#news_info .time::text").extract_first("")
match_re = re.match(".*?(\d+.*)",create_date)
if match_re:
create_date = match_re.group(1)
content = response.css("#news_content").extract()[0]
tag_list = response.css(".news_tags a::text").extract()
tags = ",".join(tag_list)
# html = requests.get(parse.urljoin(response.url,"/NewsAjax/GetAjaxNewsInfo?contentId={}".format(post_id)))
# j_data = json.loads(html.text)
article_item["title"] = title
article_item["create_date"] = create_date
article_item["content"] = content
article_item["tags"] = tags
article_item["title"] = title
article_item["url"] = response.url
article_item["front_image_url"] = [response.meta.get("front_image_url", "")]
yield Request(url=parse.urljoin(response.url, "/NewsAjax/GetAjaxNewsInfo?contentId={}".format(post_id)),
meta={"article_item":article_item},callback=self.parse_nums)
# praise_nums = j_data["DiggCount"]
# fav_nums = j_data["TotalView"]
# comment_nums = j_data["CommentCount"]
def parse_nums(self,response):
j_data = json.loads(response.text)
article_item = response.meta.get("article_item", "")
praise_nums = j_data["DiggCount"]
fav_nums = j_data["TotalView"]
comment_nums = j_data["CommentCount"]
article_item["praose_nums"] = praise_nums
article_item["fav_nums"] = fav_nums
article_item["comment_nums"] = comment_nums
article_item["url_object_id"] = common.get_md5(article_item["url"])
yield article_item
00 -
keannen
提问者
2020-02-02
********items.py**********
# -*- coding: utf-8 -*-
# Define here the models for your scraped items
#
# See documentation in:
# https://docs.scrapy.org/en/latest/topics/items.html
import scrapy
class ArticlespiderItem(scrapy.Item):
# define the fields for your item here like:
# name = scrapy.Field()
pass
class JobBoleArticleItem(scrapy.Item):
title = scrapy.Field()
create_date = scrapy.Field()
url = scrapy.Field()
url_object_id = scrapy.Field()
front_image_url = scrapy.Field()
front_image_path = scrapy.Field()
praise_nums = scrapy.Field()
comment_nums = scrapy.Field()
fav_nums = scrapy.Field()
tags = scrapy.Field()
content = scrapy.Field()00
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