用scrapy+selenium + phantomjs 爬取vip网页,保存为json格式,写入到mysql数据库,下载图片(一)

用命令在终端创建一个项目: scrapy startproject myvipspider

进入到myvipspider项目下运行命令: scrapy genspider weipin "vip.com"

项目下有这几个文件,当

settings.py文件设置:

# -*- coding: utf-8 -*-

# Scrapy settings for weipinhui project
#
# For simplicity, this file contains only settings considered important or
# commonly used. You can find more settings consulting the documentation:
#
#     https://doc.scrapy.org/en/latest/topics/settings.html
#     https://doc.scrapy.org/en/latest/topics/downloader-middleware.html
#     https://doc.scrapy.org/en/latest/topics/spider-middleware.html

BOT_NAME = 'weipinhui'

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

# Crawl responsibly by identifying yourself (and your website) on the user-agent
USER_AGENT = 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36'

# Obey robots.txt rules
ROBOTSTXT_OBEY = False

# 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://doc.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://doc.scrapy.org/en/latest/topics/spider-middleware.html
#SPIDER_MIDDLEWARES = {
#    'weipinhui.middlewares.WeipinhuiSpiderMiddleware': 543,
#}

# Enable or disable downloader middlewares
# See https://doc.scrapy.org/en/latest/topics/downloader-middleware.html
DOWNLOADER_MIDDLEWARES = {'weipinhui.middlewares.WeipinhuiDownloaderMiddleware': 543,
   'scrapy.downloadmiddlewares.useragent.UserAgentMiddleware':None,
}# Enable or disable extensions
# See https://doc.scrapy.org/en/latest/topics/extensions.html
#EXTENSIONS = {
#    'scrapy.extensions.telnet.TelnetConsole': None,
#}

# Configure item pipelines
# See https://doc.scrapy.org/en/latest/topics/item-pipeline.html
ITEM_PIPELINES = {'weipinhui.pipelines.WeipinhuiPipeline': 300,
   'weipinhui.pipelines.MysqlPipeline': 299,
}DB_HOST = "127.0.0.1"
DB_PORT = 3306
DB_USER = "root"
DB_PWD = 'root'
DB_NAME = 'weipin'
DB_CHARSET = "utf8"

# Enable and configure the AutoThrottle extension (disabled by default)
# See https://doc.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://doc.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'

items.py文件代码如下:

# -*- coding: utf-8 -*-

# Define here the models for your scraped items
#
# See documentation in:
# https://doc.scrapy.org/en/latest/topics/items.html

import scrapyclass WeipinhuiItem(scrapy.Item):# define the fields for your item here like:
    brand = scrapy.Field()  # 品牌
    title = scrapy.Field()  # 标题
    old_price = scrapy.Field()  # 原价
    new_price = scrapy.Field()  # 现价
    discount = scrapy.Field()  # 折扣
    img_url = scrapy.Field()  # 图片地址
    url = scrapy.Field()  # 链接

用scrapy+selenium + phantomjs 爬取vip网页,保存为json格式,写入到mysql数据库,下载图片(一)相关推荐

用scrapy+selenium + phantomjs 爬取vip网页,保存为json格式,写入到mysql数据库,下载图片(二)
接上一编 weipin.py文件的代码 : # -*- coding: utf-8 -*- import scrapy from weipinhui.items import WeipinhuiIte ...
selenium+ Phantomjs爬取动态网页
对于动态加载,Selenium+Phantomjs的强大打开网页查看网页源码(注意不是检查元素)会发现要爬取的信息并不在源码里面.Selenium+Phantomjs的强大一方面就在于能将完整的源码抓 ...
python Scrapy Selenium PhantomJS 爬取微博图片
1,创建项目 scrapy startproject weibo #创建工程 scrapy genspider -t basic weibo.com weibo.com #创建spider 目录结构 ...
Python爬虫根据公司名称爬取信息并保存为json格式的txt文件qcc
使用BeautifulSoup 根据公司名称来爬取企查查网站中该公司的详细信息本篇文章主要参考了BeautifulSoup 根据输入的公司名称来爬取公司的详细信息所提供的代码,后续根据自己的需求对 ...
python+selenium+phantomJS爬取国家地表水水质自动监测实时数据发布系统——动态网页爬虫
一.关于phantomjs 1.介绍 PhantomJS是一个为自动化而生的利器,它本质上是一个基于webkit内核的无界面浏览器,并可使用JavaScript或CoffeeScript进行编程.由于 ...
python爬取bilibili数据_python基础教程之selenium+phantomjs爬取bilibili
selenium+phantomjs爬取bilibili 首先我们要下载phantomjs 你可以到 http://phantomjs.org/download.html 这里去下载下载完之后解压到 ...
爬取腾讯新闻中省份疫情数据到Mysql数据库
爬取腾讯新闻中省份疫情数据到Mysql数据库本人是一个中职学生,第一次发表自己所学到技术-- 本篇文章所用到的语言及工具等: python 3.8 pycharm Mysql Navicat Pre ...
Windows下利用python+selenium+firefox爬取动态网页数据(爬取东方财富网指数行情数据)
由于之前用urlib和request发现只能获取静态网页数据,目前爬取动态网页有两种方法, (1)分析页面请求 (2)Selenium模拟浏览器行为(霸王硬上弓),本文讲的就是此方法一.安装sele ...
akshare批量爬取数据并保存为excel格式
作用:根据aa.txt内的代码,爬取数据,保存在以代码为名的xls文件中,注意"aa.txt"路径,路径中有"\"时,需用"\\"替代: 爬 ...

用scrapy+selenium + phantomjs 爬取vip网页,保存为json格式,写入到mysql数据库,下载图片(一)

用scrapy+selenium + phantomjs 爬取vip网页,保存为json格式,写入到mysql数据库,下载图片(一)相关推荐

最新文章

热门文章