pyspider解析

https://www.cnblogs.com/microman/p/6111711.html

#!/usr/bin/env python
# -*- encoding: utf-8 -*-
# Created on 2017-12-07 13:40:43
# Project: adquan

from pyspider.libs.base_handler import *


class Handler(BaseHandler):
    crawl_config = {
    }
    
    def __init__(self):
        self.deal = Deal()

    @every(minutes=24 * 60)
    def on_start(self):
        self.crawl('http://creative.adquan.com/show/42759', callback=self.detail_page)

    @config(age=10 * 24 * 60 * 60)
    def index_page(self, response):
        for each in response.doc('a[href^="http"]').items():
            self.crawl(each.attr.href, callback=self.detail_page)

    @config(priority=2)
    def detail_page(self, response):
        name = 'test'
        count = 0
        for img in response.doc('.con_Text img').items():
            url = img.attr.src
            if url:
                dir_path = self.deal.mkDir(name)
                extension = self.deal.getExtension(url)
                file_name = str(count) + '.' + extension
                count += 1
                self.crawl(img.attr.src, callback=self.save_img, save={'dir_path': dir_path, 'file_name':file_name})
        return {
            "url": response.url,
            "title": response.doc('title').text(),
        }
    def save_img(self, response):
        content = response.content
        dir_path = response.save['dir_path']
        file_name = response.save['file_name']
        file_path = dir_path + '/' + file_name
        self.deal.saveImg(content, file_path)

    
import os

DIR_PATH = "E:/pyspider/"

class Deal:
    def __init__(self):
        self.path = DIR_PATH
        if not self.path.endswith('/'):
            self.path = self.path + '/'
        if not os.path.exists(self.path):
            os.makedirs(self.path)

    def mkDir(self, path):
        path = path.strip()
        dir_path = self.path + path
        exists = os.path.exists(dir_path)
        if not exists:
            os.makedirs(dir_path)
            return dir_path
        else:
            return dir_path

    def saveImg(self, content, path):
        f = open(path, 'wb')
        f.write(content)
        f.close()

    def saveBrief(self, content, dir_path, name):
        file_name = dir_path + "/" + name + ".txt"
        f = open(file_name, "w+")
        f.write(content.encode('utf-8'))

    def getExtension(self, url):
        extension = url.split('.')[-1]
        return extension

　　http://demo.pyspider.org/