requests爬取豆瓣

Posted 2020-11-29 groundcontrol

豆瓣电视剧爬虫

# coding=utf-8
import requests
import json

class DoubanSpider():
    def __init__(self):
        self.url_temp_list=[                      {"url_temp":"https://m.douban.com/rexxar/api/v2/subject_collection/tv_american/items?start={}&count=18&loc_id=108288",
                        "country":"US"},
                        {"url_temp":"https://m.douban.com/rexxar/api/v2/subject_collection/tv_domestic/items?start={}&count=18&loc_id=108288",
                         "country":"CN"},
                         
{"url_temp": "https://m.douban.com/rexxar/api/v2/subject_collection/tv_korean/items?start={}&count=18&loc_id=108288",
                         "country":"KR"},
                        {"url_temp":"https://m.douban.com/rexxar/api/v2/subject_collection/tv_japanese/items?start={}&count=18&loc_id=108288",
                         "country":"JP"}]

self.headers = {
            "Referer": "https: // m.douban.com / tv / american",
            "User-Agent":"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (Khtml, like Gecko) Chrome/79.0.3945.130 Safari/537.36"}

    def parse_url(self,url):# 发送请求,获取响应
        print(url)
        response = requests.get(url,headers=self.headers)
        return response.content.decode()

    def get_content_list(self,json_str):
        dict_ret = json.loads(json_str)
        content_list = dict_ret["subject_collection_items"]
        total = dict_ret["total"]
        return content_list,total

    def save_content_list(self,content_list,country):#保存

        with open("douban.txt","a",encoding="utf-8") as f:
            for content in content_list:
                content["country"]=country
                f.write(json.dumps(content,ensure_ascii=False))
                f.write("
")#写入换行符进行换行
        print("保存成功")

    def run(self):# 实现主要逻辑
        for url_temp in self.url_temp_list:
            num=0
            total = 100 # 假设有第一页
            while num<total+18:
                # 1.start_utl
                url = url_temp["url_temp"].format(num)
                #2.发送请求,获取响应
                json_str = self.parse_url(url)
                #3.提取数据
                content_list,total = self.get_content_list(json_str)
                #4.保存
                self.save_content_list(content_list,url_temp["country"])
                # if len(content_list)<18:
                #     break
                #5.构造下一页的url地址,进入循环
                num +=18

if __name__ == "__main__" :
    douban_spider = DoubanSpider()
    douban_spider.run()

豆瓣书籍爬取

import requests
import json

class DoubanBook_Spider():
    def __init__(self):
        self.url_temp_list = [
            {"url_temp":"https://m.douban.com/rexxar/api/v2/subject_collection/book_fiction/items?start=0&count=18&loc_id=0",
             "book":"fiction"},
            {"url_temp":"https://m.douban.com/rexxar/api/v2/subject_collection/book_nonfiction/items?start=0&count=18&loc_id=0",
             "book":"nofiction"},
            {"url_temp":"https://m.douban.com/rexxar/api/v2/subject_collection/book_classic/items?start=0&count=18&loc_id=0",
             "book":"classic"}
        ]
        self.headers={
            "Referer": "https://m.douban.com/book/classic",
            "User-Agent": "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36"
        }

    def parse_url(self,url):# 发送请求,获取响应
        print(url)
        response = requests.get(url,headers=self.headers)
        return response.content.decode()

    def get_content_list(self,json_str):#  提取数据
        dict_ret = json.loads(json_str)
        content_list = dict_ret["subject_collection_items"]
        total = dict_ret["total"]
        return content_list,total

    def save_content_list(self,content_list,book):
        with open("book_list.txt","a",encoding="utf-8")as f:
            for content in content_list:
                content["book"]= book
                f.write(json.dumps(content, ensure_ascii=False))
                f.write("
")  # 写入换行符进行换行
            print("保存成功")

    def run(self):
        for url_temp in self.url_temp_list:
            num = 0
            total = 100  # 假设有第一页
            while num < total + 18:
                # 1.start_utl
                url = url_temp["url_temp"].format(num)
                # 2.发送请求,获取响应
                json_str = self.parse_url(url)
                # 3.提取是数据
                content_list, total = self.get_content_list(json_str)
                # 4.保存
                self.save_content_list(content_list, url_temp["book"])
                # if len(content_list)<18:
                #     break
                # 5.构造下一页的url地址,进入循环
                num += 18

if __name__ == "__main__":
    douban_spider = DoubanBook_Spider()
    douban_spider.run()