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Scrapy_setting

Scrapy_setting

作者: 錦魚 | 来源:发表于2018-12-06 15:46 被阅读0次
    # -*- coding: utf-8 -*-
    
    # Scrapy settings for quanshubook 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 = 'quanshubook'
    
    SPIDER_MODULES = ['quanshubook.spiders']
    NEWSPIDER_MODULE = 'quanshubook.spiders'
    
    ''' 设置模拟浏览器加载'''
    # Crawl responsibly by identifying yourself (and your website) on the user-agent
    #USER_AGENT = 'quanshubook (+http://www.yourdomain.com)'
    
    '''是否遵循robot协议'''
    # Obey robots.txt rules
    ROBOTSTXT_OBEY = False
    
    '''最大并发数量# 默认16'''
    # 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
    
    '''下载延时 默认为0'''
    DOWNLOAD_DELAY = 1
    
    # The download delay setting will honor only one of:
    '''在每个域下允许的并发数 默认为8'''
    #CONCURRENT_REQUESTS_PER_DOMAIN = 16
    
    '''针对每个ip,允许发起请求的并发数量  默认为0'''
    #CONCURRENT_REQUESTS_PER_IP = 16
    '''不为零的情况下IP优先级比DOMAIN优先级要高'''
    '''DOWNLOAD_DEALY的下载延时就针对于ip而不是网站了'''
    
    # Disable cookies (enabled by default)
    
    """携带cookie"""
    '''是否携带cookies 默认为True,表示携带cookie'''
    COOKIES_ENABLED = False
    '''默认为False,表示不追踪cookies'''
    COOKIE_DEBUG = True
    
    
    # Disable Telnet Console (enabled by default)
    '''是一个拓展插件,可以监听到当前爬虫的一些状态(默认开启)'''
    #TELNETCONSOLE_ENABLED = False
    
    
    # Override the default request headers:
    # 请求头的设置
    DEFAULT_REQUEST_HEADERS = {
    #   'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
    #   'Accept-Language': 'en',
        'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 BIDUBrowser/8.7 Safari/537.36',
    }
    
    '''中间件'''
    # Enable or disable spider middlewares
    # See https://doc.scrapy.org/en/latest/topics/spider-middleware.html
    
    '''爬虫中间件'''
    #SPIDER_MIDDLEWARES = {
    #    'quanshubook.middlewares.QuanshubookSpiderMiddleware': 543,
    #}
    
    '''下载中间件(数字是优先级,越小优先级越高)'''
    # Enable or disable downloader middlewares
    # See https://doc.scrapy.org/en/latest/topics/downloader-middleware.html
    DOWNLOADER_MIDDLEWARES = {
        'quanshubook.middlewares.QidinaUserAgentDownloadmiddlerware': 543,
        'quanshubook.middlewares.QidianProxyDowoloadmiddleware':542,
        'quanshubook.middlewares.SeleiniumDoenloadMiddlerWare':544,
    }
    
    '''拓展'''
    # Enable or disable extensions
    # See https://doc.scrapy.org/en/latest/topics/extensions.html
    #EXTENSIONS = {
    #    'scrapy.extensions.telnet.TelnetConsole': None,
    #}
    
    '''管道(数字越小优先级越高)'''
    # Configure item pipelines
    # See https://doc.scrapy.org/en/latest/topics/item-pipeline.html
    ITEM_PIPELINES = {
       'quanshubook.pipelines.QuanshubookPipeline': 300,
    }
    
    '''动态设置的下载延时'''
    # 默认情况下是关闭的
    # 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
    '''初始下载延时(为5s)'''
    #AUTOTHROTTLE_START_DELAY = 5
    # The maximum download delay to be set in case of high latencies
    '''最大下载延时'''
    #AUTOTHROTTLE_MAX_DELAY = 60
    # The average number of requests Scrapy should be sending in parallel to
    # each remote server
    '''发送到服务器的并行的请求数量'''
    #AUTOTHROTTLE_TARGET_CONCURRENCY = 1.0
    # Enable showing throttling stats for every response received:
    '''是否开启debug模式(默认为TRUE)'''
    #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
    
    '''缓存的拓展,(默认情况下关闭,False)'''
    #HTTPCACHE_ENABLED = True
    '''设置缓存时间'''
    #HTTPCACHE_EXPIRATION_SECS = 0
    '''设置缓存保存的路径'''
    #HTTPCACHE_DIR = 'httpcache'
    '''忽略的响应状态码'''
    #HTTPCACHE_IGNORE_HTTP_CODES = []
    '''缓存的一个储存插件'''
    #HTTPCACHE_STORAGE = 'scrapy.extensions.httpcache.FilesystemCacheStorage'
    
    
    # # 春花秋月何时了,往事知多少
    # 将log日志信息,保存到本地文件
    LOG_FILE = 'qd_log_file.log'
    
    # 编码
    
    LOG_ENCODING = 'utf-8'
    # #开关
    # CRITICAL - 严重错误(critical)
    # - ERROR - 一般错误(regular errors)
    # - WARNING - 警告信息(warning messages)
    # - INFO - 一般信息(informational messages)
    # - DEBUG - 调试信息(debugging messages)
    LOG_LEVEL ='INFO'
    
    
    
    
    '''其他自定义'''
    '''
        调用时,
            属性 = crawler.settings['简直对']
    
    '''
    
    '''mongo'''
    MONGO_HOST = '127.0.0.1'
    MONGO_POST = 27017
    MONGO_DBNAME = 'qd_book'
    
    
    '''UA池'''
    USER_AGENT = [
        "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 2.0.50727; Media Center PC 6.0)",
        "Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 1.0.3705; .NET CLR 1.1.4322)",
        "Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.2; .NET CLR 3.0.04506.30)",
        "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN) AppleWebKit/523.15 (KHTML, like Gecko, Safari/419.3) Arora/0.3 (Change: 287 c9dfb30)",
        "Mozilla/5.0 (X11; U; Linux; en-US) AppleWebKit/527+ (KHTML, like Gecko, Safari/419.3) Arora/0.6",
    ]
    
    '''代理池'''
    PROXIES = [
        {'ip_port': '111.8.60.9:8123', 'user_pwd': 'user1:pass1'},
        {'ip_port': '101.71.27.120:80', 'user_pwd': 'user2:pass2'},
        {'ip_port': '122.96.59.104:80', 'user_pwd': None},
        {'ip_port': '122.224.249.122:8088', 'user_pwd': None},
    ]
    
    '''COOKIES池'''
    COOKIES = [
    
    ]
    


    常用的
    '''是否遵循robot协议'''
    # Obey robots.txt rules
    ROBOTSTXT_OBEY = False
    
    
    # 请求头的设置
    DEFAULT_REQUEST_HEADERS = {
    #   'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
    #   'Accept-Language': 'en',
        'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 BIDUBrowser/8.7 Safari/537.36',
    }
    
    '''下载延时 默认为0'''
    DOWNLOAD_DELAY = 1
    
    # 管道激活
    ITEM_PIPELINES = {
       'quanshubook.pipelines.QuanshubookPipeline': 300,
    }
    # 中间件激活
    # 
    

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