scrapy檔案管道

安裝scrapy

pip install scrapy

新建專案

(python36) e:\www>scrapy startproject filedownload

new scrapy project 
'filedownload
', using template directory '
c:\users\brady\.conda\envs\python36\lib\site-packages\scrapy\templates\project
', created in
:    e:\www\filedownload
you can start your first spider with:
cd filedownload
scrapy genspider example example.com
(python36) e:\www>

(python36) e:\www>scrapy startproject filedownload

new scrapy project 'filedownload', using template directory 'c:\users\brady\.conda\envs\python36\lib\site-packages\scrapy\templates\project', created in:
e:\www\filedownload
you can start your first spider with:
cd filedownload
scrapy genspider example example.com
(python36) e:\www>

編輯爬蟲提取內容

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

import scrapy
from scrapy.linkextractors import linkextractor
from scrapy.spiders import crawlspider, rule
from  filedownload.items import  filedownloaditem
class pexelsspider(crawlspider):
name = 'pexels'
allowed_domains = ['www.pexels.com']
start_urls = ['']
rules = (
rule(linkextractor(allow=r'/photo/'), callback='parse_item', follow=true),
)def parse_item(self, response):
print(response.url)
url = response.xpath("//img[contains(@src,'photos')]/@src").extract()
item = filedownloaditem()
try:
item['file_urls'] = url
print("爬取到列表 " + url)
yield item
except exception as  e:
print(str(e))

配置item

class filedownloaditem(scrapy.item):

# define the fields for your item here like:
# name = scrapy.field()
file_urls = scrapy.field()

setting.py

啟用檔案管道

'scrapy.pipelines.files.filespipeline':2  檔案管道

files_store=''  //儲存路徑

item裡面

file_urls = scrapy.field()

files = scrapy.field()

爬蟲裡面 改為file_urls引數傳遞到管道

重寫檔案管道 儲存檔名為原名

pipelines.php裡面 新建自己管道，繼承管道

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

# define your item pipelines here
## don't forget to add your pipeline to the item_pipelines setting
# see: 
from scrapy.pipelines.files import  filespipeline
class filedownloadpipeline(object):
def process_item(self, item, spider):
tmp = item['file_urls']
item['file_urls'] = 
for i in tmp:
if "?" in i:
else:
print(item)
return item
class  myfilespipeline(filespipeline):
def file_path(self, request, response=none, info=none):
file_path = request.url
file_path = file_path.split('/')[-1]
return 'full/%s' % (file_path)

setting.py 改為啟用自己檔案管道

item_pipelines =

獲取套圖 

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

from time import sleep
import scrapy
from scrapy.linkextractors import linkextractor
from scrapy.spiders import crawlspider, rule
class angelspider(crawlspider):
name = 'angel'
allowed_domains = ['angelimg.spbeen.com']
start_urls = ['']
base_url = ""
rules = (
rule(linkextractor(allow=r'^ang/\d+$'), callback='parse_item', follow=false),
)def parse_item(self, response):
item = response.meta.get('item',false)
if item:
pass
else:
item = {}
item['files'] = 
item['file_urls'] = 
print(response.url)
img_url = response.xpath('.//div[@id="content"]/a/img/@src').extract_first()
next_url = response.xpath('.//div[@class="page"]//a[contains(@class,"next")]/@href').extract_first()
if next_url:
next_url = self.base_url + next_url
yield scrapy.request(next_url,callback=self.parse_item,meta=)
else:
print(item)
yield item
def parse_next_response(self,response,):
item = response.meta.get('item')
print(item,response.url)

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