个人笔记

有不对的地方请指出

import scrapy
from..items import ImgscrItem



class ImgSpider(scrapy.Spider):
    name = 'doutu'
    allowed_domains = ['doutula.com']
    start_urls = ['https://www.doutula.com/photo/list/?']

    def parse(self, response,**kwargs):
        lis=response.xpath('//div[@class="page-content text-center"]//a')
        for i in lis:
            ur=i.xpath('./img/@data-backup').extract_first()
            item=ImgscrItem()
            item['ur']=ur
            yield item

import scrapy

class ImgscrItem(scrapy.Item):
    # define the fields for your item here like:
    # name = scrapy.Field()
    ur=scrapy.Field()

from scrapy.pipelines.images import ImagesPipeline
import scrapy
class ImgscrPipeline(ImagesPipeline):
    def get_media_requests(self, item, info):#根据图片地址对图片进行请求
        yield scrapy.Request(item['ur'])
    #指定图片存储路径
    def file_path(self, request, response=None, info=None, *, item=None):
        imgname=request.url.split('/')[-1] #以图片url，通过/分割的最后一组数据为图片名
        return imgname
    def item_completed(self, results, item, info):
        return item #返回给下一个即将被执行的管道类

这块换成自己定义的类

这个是图片保存地址，先建好文件夹