ELK之开心小爬爬

1.开心小爬爬

在爬取之前需要先安装requests模块和BeautifulSoup这两个模块

'''
https://www.autohome.com.cn/all/
爬取图片和链接
写入数据库里边
标题:title summary  a_url img_url tags...

#https://www.autohome.com.cn/all/3/#liststart   #访问地址
#懒加载,访问到才加载内容
安装:
pip install requests
pip install BeautifulSoup4
pip install -i https://pypi.doubanio.com/simple/requests

设计表结构将数据存储到数据库中
'''
import requests
from bs4 import BeautifulSoup
from concurrent.futures import ThreadPoolExecutor　　　　#开启线程池,更快的爬取数据
import time
import os

def work(k):
    response=requests.get(url='https://www.autohome.com.cn/all/{}/#liststart'.format(k))

    response.encoding="GBK"
    soup_obj=BeautifulSoup(response.text,'html.parser')
    div_obj=soup_obj.find(name='div',attrs={"id":"auto-channel-lazyload-article"})
    li_list=div_obj.find_all(name='li')
    for i in li_list:
        no_obj=i.find(name='h3')
        if not no_obj:continue

        title=i.find(name='h3').text
        summary=i.find(name='p').text
        a='https'+i.find(name='a').get('href')
        img='https'+i.find(name='img').get('src')
        tags=a.split('/',4)[3]
        # print(response.url,title,tags)
        print(title,summary,a,img,tags)

        #下面是个models里边表名
        info_obj=models.infodata(title=title,summary=summary,a=a,img=img,tags=tags)
        #下面是保存数据 到数据库
　　　　 info_obj.save()

def spider():
    """爬取汽车之家"""
    t=ThreadPoolExecutor(10)
    for k in range(1,6839):
        t.submit(work,k)
    t.shutdown()
    # response=requests.get(url='https://www.autohome.com.cn/all/6836/#liststart')
    # print(response.headers)       #头文件
    # print(response.encoding)      #编码
    # print(response.status_code)   #状态码
    # print(response.text)            #html文件
if __name__ == '__main__':
    #manage.py里边的内容,要对应起来
    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myes007.settings")
    #写下面的两行代码
　　 import django
    django.setup()
　　#导入models
    from web01 import models

    t1=time.time()
    spider()
    print(time.time()-t1)

 

2.自定义models.py模块

from django.db import models

# Create your models here.
# title summary  a_url img_url tags
class infodata(models.Model):
    title=models.CharField(verbose_name="标题",max_length=200)
    summary=models.CharField(verbose_name="摘要",max_length=300)
    a=models.CharField(verbose_name="文章链接",max_length=100)
    img=models.CharField(verbose_name="图片链接",max_length=100)
    tags=models.CharField(verbose_name="标签",max_length=100)

写完上边的内容,需要在Terminal窗体中执行命令

python manage.py makemigrations　　#保存models.py的变更记录
python manage.py migrate　　　　　　 #把变更记录同步到数据库中

 

3.前后端设计&&配置文件.