scrapy-box 1.4.3

简单易用的scrapy插件盒

简单好用的scrapy插件盒

Download middlewares

• 代理下载中间件

  # 普通代理url
  PROXY_ADDR = 'your proxy API'
  DOWNLOADER_MIDDLEWARES = {
     'scrapy_box.RandomProxyDownloaderMiddleware': 740,
  }
  # splash代理url, the number must under 723
  PROXY_ADDR = 'your proxy API'
  DOWNLOADER_MIDDLEWARES = {
      'scrapy_box.SplashProxyDownloaderMiddleware': 160,
      'scrapy_box.SplashRetryProxyMiddleware': 162,
  }

• 错误重定向重试的下载中间件

  # 需要对重定向的url,使用原url进行重试的url片段
  ERROR_REDIRECT_URL_SNIPPET = ['redirect', 'retry']
  # 注意，数字必须大于600
  DOWNLOADER_MIDDLEWARES = {
     'scrapy_box.ErrorRedirectMiddleware': 601,
  }

• 当响应中存在某些字符串的时候，进行重试的中间件

  # 需要判断的字符串，如果响应中包含其中任何一个字符串，将重试
  ERROR_RESPONSE_SNIPPET = ['Are your a robot?', '访问过于频繁，请稍后再试']
  DOWNLOADER_MIDDLEWARES = {
     'scrapy_box.ErrorResponseMiddleware': 540,
  }

Pipelines

• mongo批量插入数据库 pipeline

  MONGO_ADDR = ['mongo_cluster_addr1', 'mongo_cluster_addr2']
  MONGO_USERNAME = 'root'
  MONGO_PASSWORD = 'xxx'
  MONGO_INSERT_SIZE = 100
  MONGO_DB = 'xxx'
  MONGO_COLLECTION = 'xxxx'
  ITEM_PIPELINES = {
     'scrapy_box.MongoBatchInsertPipeline': 300,
  }

• mysql异步插入数据库 pipeline

  MYSQL_HOST = '192.168.0.43'
  MYSQL_USERNAME = 'root'
  MYSQL_PASSWORD = 'xxx'
  MYSQL_DB = 'xxx'
  MYSQL_CHARSET = 'utf8'
  MYSQL_TABLE = 'xxx'
  ITEM_PIPELINES = {
     'scrapy_box.MysqlInsertPipeline': 300,
  }