diff --git a/scrapy_dangdang_040/scrapy.cfg b/scrapy_dangdang_040/scrapy.cfg new file mode 100644 index 0000000..2b5d2d2 --- /dev/null +++ b/scrapy_dangdang_040/scrapy.cfg @@ -0,0 +1,11 @@ +# Automatically created by: scrapy startproject +# +# For more information about the [deploy] section see: +# https://scrapyd.readthedocs.io/en/latest/deploy.html + +[settings] +default = scrapy_dangdang_040.settings + +[deploy] +#url = http://localhost:6800/ +project = scrapy_dangdang_040 diff --git a/scrapy_dangdang_040/scrapy_dangdang_040/__init__.py b/scrapy_dangdang_040/scrapy_dangdang_040/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/scrapy_dangdang_040/scrapy_dangdang_040/__pycache__/__init__.cpython-39.pyc b/scrapy_dangdang_040/scrapy_dangdang_040/__pycache__/__init__.cpython-39.pyc new file mode 100644 index 0000000..63d1f74 Binary files /dev/null and b/scrapy_dangdang_040/scrapy_dangdang_040/__pycache__/__init__.cpython-39.pyc differ diff --git a/scrapy_dangdang_040/scrapy_dangdang_040/__pycache__/settings.cpython-39.pyc b/scrapy_dangdang_040/scrapy_dangdang_040/__pycache__/settings.cpython-39.pyc new file mode 100644 index 0000000..3ac7951 Binary files /dev/null and b/scrapy_dangdang_040/scrapy_dangdang_040/__pycache__/settings.cpython-39.pyc differ diff --git a/scrapy_dangdang_040/scrapy_dangdang_040/items.py b/scrapy_dangdang_040/scrapy_dangdang_040/items.py new file mode 100644 index 0000000..ae4f13b --- /dev/null +++ b/scrapy_dangdang_040/scrapy_dangdang_040/items.py @@ -0,0 +1,14 @@ +# Define here the models for your scraped items +# +# See documentation in: +# https://docs.scrapy.org/en/latest/topics/items.html + +import scrapy + + +class ScrapyDangdang040Item(scrapy.Item): + # define the fields for your item here like: + # name = scrapy.Field() + # 通俗的说就是要下载的数据都要什么 + + pass diff --git a/scrapy_dangdang_040/scrapy_dangdang_040/middlewares.py b/scrapy_dangdang_040/scrapy_dangdang_040/middlewares.py new file mode 100644 index 0000000..3c41796 --- /dev/null +++ b/scrapy_dangdang_040/scrapy_dangdang_040/middlewares.py @@ -0,0 +1,103 @@ +# Define here the models for your spider middleware +# +# See documentation in: +# https://docs.scrapy.org/en/latest/topics/spider-middleware.html + +from scrapy import signals + +# useful for handling different item types with a single interface +from itemadapter import is_item, ItemAdapter + + +class ScrapyDangdang040SpiderMiddleware: + # Not all methods need to be defined. If a method is not defined, + # scrapy acts as if the spider middleware does not modify the + # passed objects. + + @classmethod + def from_crawler(cls, crawler): + # This method is used by Scrapy to create your spiders. + s = cls() + crawler.signals.connect(s.spider_opened, signal=signals.spider_opened) + return s + + def process_spider_input(self, response, spider): + # Called for each response that goes through the spider + # middleware and into the spider. + + # Should return None or raise an exception. + return None + + def process_spider_output(self, response, result, spider): + # Called with the results returned from the Spider, after + # it has processed the response. + + # Must return an iterable of Request, or item objects. + for i in result: + yield i + + def process_spider_exception(self, response, exception, spider): + # Called when a spider or process_spider_input() method + # (from other spider middleware) raises an exception. + + # Should return either None or an iterable of Request or item objects. + pass + + def process_start_requests(self, start_requests, spider): + # Called with the start requests of the spider, and works + # similarly to the process_spider_output() method, except + # that it doesn’t have a response associated. + + # Must return only requests (not items). + for r in start_requests: + yield r + + def spider_opened(self, spider): + spider.logger.info('Spider opened: %s' % spider.name) + + +class ScrapyDangdang040DownloaderMiddleware: + # Not all methods need to be defined. If a method is not defined, + # scrapy acts as if the downloader middleware does not modify the + # passed objects. + + @classmethod + def from_crawler(cls, crawler): + # This method is used by Scrapy to create your spiders. + s = cls() + crawler.signals.connect(s.spider_opened, signal=signals.spider_opened) + return s + + def process_request(self, request, spider): + # Called for each request that goes through the downloader + # middleware. + + # Must either: + # - return None: continue processing this request + # - or return a Response object + # - or return a Request object + # - or raise IgnoreRequest: process_exception() methods of + # installed downloader middleware will be called + return None + + def process_response(self, request, response, spider): + # Called with the response returned from the downloader. + + # Must either; + # - return a Response object + # - return a Request object + # - or raise IgnoreRequest + return response + + def process_exception(self, request, exception, spider): + # Called when a download handler or a process_request() + # (from other downloader middleware) raises an exception. + + # Must either: + # - return None: continue processing this exception + # - return a Response object: stops process_exception() chain + # - return a Request object: stops process_exception() chain + pass + + def spider_opened(self, spider): + spider.logger.info('Spider opened: %s' % spider.name) diff --git a/scrapy_dangdang_040/scrapy_dangdang_040/pipelines.py b/scrapy_dangdang_040/scrapy_dangdang_040/pipelines.py new file mode 100644 index 0000000..58327f2 --- /dev/null +++ b/scrapy_dangdang_040/scrapy_dangdang_040/pipelines.py @@ -0,0 +1,13 @@ +# Define your item pipelines here +# +# Don't forget to add your pipeline to the ITEM_PIPELINES setting +# See: https://docs.scrapy.org/en/latest/topics/item-pipeline.html + + +# useful for handling different item types with a single interface +from itemadapter import ItemAdapter + + +class ScrapyDangdang040Pipeline: + def process_item(self, item, spider): + return item diff --git a/scrapy_dangdang_040/scrapy_dangdang_040/settings.py b/scrapy_dangdang_040/scrapy_dangdang_040/settings.py new file mode 100644 index 0000000..34dff05 --- /dev/null +++ b/scrapy_dangdang_040/scrapy_dangdang_040/settings.py @@ -0,0 +1,88 @@ +# Scrapy settings for scrapy_dangdang_040 project +# +# For simplicity, this file contains only settings considered important or +# commonly used. You can find more settings consulting the documentation: +# +# https://docs.scrapy.org/en/latest/topics/settings.html +# https://docs.scrapy.org/en/latest/topics/downloader-middleware.html +# https://docs.scrapy.org/en/latest/topics/spider-middleware.html + +BOT_NAME = 'scrapy_dangdang_040' + +SPIDER_MODULES = ['scrapy_dangdang_040.spiders'] +NEWSPIDER_MODULE = 'scrapy_dangdang_040.spiders' + + +# Crawl responsibly by identifying yourself (and your website) on the user-agent +#USER_AGENT = 'scrapy_dangdang_040 (+http://www.yourdomain.com)' + +# Obey robots.txt rules +# ROBOTSTXT_OBEY = True + +# Configure maximum concurrent requests performed by Scrapy (default: 16) +#CONCURRENT_REQUESTS = 32 + +# Configure a delay for requests for the same website (default: 0) +# See https://docs.scrapy.org/en/latest/topics/settings.html#download-delay +# See also autothrottle settings and docs +#DOWNLOAD_DELAY = 3 +# The download delay setting will honor only one of: +#CONCURRENT_REQUESTS_PER_DOMAIN = 16 +#CONCURRENT_REQUESTS_PER_IP = 16 + +# Disable cookies (enabled by default) +#COOKIES_ENABLED = False + +# Disable Telnet Console (enabled by default) +#TELNETCONSOLE_ENABLED = False + +# Override the default request headers: +# DEFAULT_REQUEST_HEADERS = { +# 'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8', +# 'Accept-Language': 'en', +# } + +# Enable or disable spider middlewares +# See https://docs.scrapy.org/en/latest/topics/spider-middleware.html +# SPIDER_MIDDLEWARES = { +# 'scrapy_dangdang_040.middlewares.ScrapyDangdang040SpiderMiddleware': 543, +# } + +# Enable or disable downloader middlewares +# See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html +# DOWNLOADER_MIDDLEWARES = { +# 'scrapy_dangdang_040.middlewares.ScrapyDangdang040DownloaderMiddleware': 543, +# } + +# Enable or disable extensions +# See https://docs.scrapy.org/en/latest/topics/extensions.html +# EXTENSIONS = { +# 'scrapy.extensions.telnet.TelnetConsole': None, +# } + +# Configure item pipelines +# See https://docs.scrapy.org/en/latest/topics/item-pipeline.html +# ITEM_PIPELINES = { +# 'scrapy_dangdang_040.pipelines.ScrapyDangdang040Pipeline': 300, +# } + +# Enable and configure the AutoThrottle extension (disabled by default) +# See https://docs.scrapy.org/en/latest/topics/autothrottle.html +#AUTOTHROTTLE_ENABLED = True +# The initial download delay +#AUTOTHROTTLE_START_DELAY = 5 +# The maximum download delay to be set in case of high latencies +#AUTOTHROTTLE_MAX_DELAY = 60 +# The average number of requests Scrapy should be sending in parallel to +# each remote server +#AUTOTHROTTLE_TARGET_CONCURRENCY = 1.0 +# Enable showing throttling stats for every response received: +#AUTOTHROTTLE_DEBUG = False + +# Enable and configure HTTP caching (disabled by default) +# See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html#httpcache-middleware-settings +#HTTPCACHE_ENABLED = True +#HTTPCACHE_EXPIRATION_SECS = 0 +#HTTPCACHE_DIR = 'httpcache' +#HTTPCACHE_IGNORE_HTTP_CODES = [] +#HTTPCACHE_STORAGE = 'scrapy.extensions.httpcache.FilesystemCacheStorage' diff --git a/scrapy_dangdang_040/scrapy_dangdang_040/spiders/__init__.py b/scrapy_dangdang_040/scrapy_dangdang_040/spiders/__init__.py new file mode 100644 index 0000000..ebd689a --- /dev/null +++ b/scrapy_dangdang_040/scrapy_dangdang_040/spiders/__init__.py @@ -0,0 +1,4 @@ +# This package will contain the spiders of your Scrapy project +# +# Please refer to the documentation for information on how to create and manage +# your spiders. diff --git a/scrapy_dangdang_040/scrapy_dangdang_040/spiders/__pycache__/__init__.cpython-39.pyc b/scrapy_dangdang_040/scrapy_dangdang_040/spiders/__pycache__/__init__.cpython-39.pyc new file mode 100644 index 0000000..4d5c957 Binary files /dev/null and b/scrapy_dangdang_040/scrapy_dangdang_040/spiders/__pycache__/__init__.cpython-39.pyc differ diff --git a/scrapy_dangdang_040/scrapy_dangdang_040/spiders/__pycache__/dang.cpython-39.pyc b/scrapy_dangdang_040/scrapy_dangdang_040/spiders/__pycache__/dang.cpython-39.pyc new file mode 100644 index 0000000..5b004ca Binary files /dev/null and b/scrapy_dangdang_040/scrapy_dangdang_040/spiders/__pycache__/dang.cpython-39.pyc differ diff --git a/scrapy_dangdang_040/scrapy_dangdang_040/spiders/dang.py b/scrapy_dangdang_040/scrapy_dangdang_040/spiders/dang.py new file mode 100644 index 0000000..0dbbdbc --- /dev/null +++ b/scrapy_dangdang_040/scrapy_dangdang_040/spiders/dang.py @@ -0,0 +1,39 @@ +import scrapy + + +class DangSpider(scrapy.Spider): + name = 'dang' + allowed_domains = ['http://category.dangdang.com/cp01.01.02.00.00.00.html'] + start_urls = ['http://category.dangdang.com/cp01.01.02.00.00.00.html'] + + def parse(self, response): + print("-----------------------------") + + # pipelines 下载数据 + # items 定义数据结构 + + # src='//ul[@id="component_59"]/li//img/@src' + # alt='//ul[@id="component_59"]/li//img/@alt' + # price='//ul[@id="component_59"]/li//span[@class="search_now_price"]/text()' + # 所有的seletor的对象都可以再次调用xpath方法 + li_list = response.xpath('//ul[@id="component_59"]/li') + for li in li_list: + # 图片有懒加载,需要注意更换路径 + # 第一张图片和其他标签的属性是不一样的 + # 第一张图片的src可以使用,其他的图片的地址是data-original + src = li.xpath('.//img/@data-original').extract_first() + if src: + src = src + else: + src = li.xpath('.//img/@src').extract_first() + + name = li.xpath('.//img/@alt').extract_first() + price = li.xpath( + './/span[@class="search_now_price"]/text()').extract_first() + + print(src, name, price) + + # price = response.xpath( + # '//ul[@id="component_59"]/li//span[@class="search_now_price"]/text()') + # print(price.extract()) + pass