安居客数据的爬取并保存到MySQL

     今天阿彬爬取的网页是安居客，涉及到异步抓取，先分析首页，再得到各个首页的标签的url，做一个二次请求，最后是到得到的二次请求的详情页获取详细数据。（下面就全是代码）

1、经过首页的分析，可以得到详情页的url，圈起来的是重点。获取各个详情页的url之后，进入详情页对详细的数据进行抓取。

2、爬取数据的代码：

import requests
 
# 使用xpath方法定位元素
from lxml import etree
import csv
#
f = open('安居客2.csv', mode='a', encoding='utf8', newline='')
csv_write = csv.DictWriter(f, fieldnames=['标题', '地址', '建筑面积', '月租', '性质', '楼层', '类型', '付款方式', '使用率', '物业费',
                                          '房源亮点', '配套设施', '项目优势', '项目图片'])
csv_write.writeheader()
for d in range(1, 3):
    url = f'https://zh.sydc.anjuke.com/xzl-zu/p+{d}/'  # 请求头
    head = {
        'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36',
        'cookie': 'aQQ_ajkguid=49251b9d-01b8-4a2a-8750-8c8d46a3a061; sessid=ad07f13d-086f-40ff-9044-8347518facce; lps=https%3A%2F%2Fzh.sydc.anjuke.com%2Fxzl-zu%2F%7Cnull; ctid=42; fzq_h=0ef6053df4385c7f4b8d9621d0873223_1657457994428_d41105585c4a47c89785d46bc4ab49c6_2018900023; id58=CocKx2LKzUptyucVm4BwAg==; id58=CrIMp2LKzUtH/xqlmCnNAg==; wmda_uuid=371ceba20e63c73b95cd3be8c29147df; wmda_new_uuid=1; wmda_visited_projects=%3B6289197098934; wmda_session_id_6289197098934=1657457995012-368cc26f-de19-6181; ajk-appVersion=; JSESSIONID=A7A8B1E1E17991242AB9483D21223E8A; fzq_js_anjuke_business_fang_pc=ae985b0c03544ca615cc48ac7b6c5bb5_1657458865784_25; __xsptplus8=8.1.1657457995.1657458866.12%234%7C%7C%7C%7C%7C%23%23VOSWEhAO-5wxS1JfST853m4oWbleBw23%23',
        'referer': 'https://zh.sydc.anjuke.com/xzl-zu/'
    }  # 伪装，防止被封IP
 
    resp = requests.get(url, headers=head).text  # 以文本的格式打卡网页
    # print(resp)
    whh = etree.HTML(resp).xpath('//div[@class="list-item"]/a/@href')
    for src in whh:  # 对上一行代码所获取到每个标题的连接做一个遍历
        # print(src)
        data_url = requests.get(src, headers=head).text  # 二次请求，就是对新的url重新发起请求
        data_link = etree.HTML(data_url)
        title = data_link.xpath('//h1[@class="house-title"]/text()')
        jzmj = data_link.xpath('//div[@class="detail-wrap"]/div/div[1]/text()')
        pohto = data_link.xpath('//div[@id="photos"]/img/@src')
        # pictuer = 'https:' + pohto
        data = data_link.xpath('//div[@class="basic-info-wrapper"]')
        xiangxi_data = data_link.xpath('//div[@id="detaildesc"]/div')
        for a in data:
            # 因为所获取到的数据是列表，所以[0]是使得到的结果返回列表的第一个元素
            dz = a.xpath('./div[15]/span[2]/text()')[0]
            yz = a.xpath('./div[3]/span[2]/text()')[0]
            xz = a.xpath('./div[2]/span[2]/text()')[0]
            lc = a.xpath('./div[8]/span[2]/text()')[0]
            lx = a.xpath('./div[6]/span[2]/text()')[0]
            fk = a.xpath('./div[5]/span[2]/text()')[0]
            syl = a.xpath('./div[10]/span[2]/text()')[0]
            wyf = a.xpath('./div[16]/span[2]/text()')
 
            for b in xiangxi_data:
                fyld = b.xpath('./div[1]/article/text()')[0]
                ptss = b.xpath('./div[2]/article/text()')
                xmys = b.xpath('./div[3]/article/text()')
                print(title, dz, jzmj, yz, xz, lc, lx, fk, syl, wyf, fyld, ptss, xmys, pohto)
 
                data_dict = {'标题': title, '地址': dz, '建筑面积': jzmj, '月租': yz, '性质': xz, '楼层': lc, '类型': lx,
                             '付款方式': fk, '使用率': syl, '物业费': wyf, '房源亮点': fyld, '配套设施': ptss, '项目优势': xmys,
                             '项目图片': pohto}
 
                csv_write.writerow(data_dict)
 
f.close()

3、得到的数据需要做一些简单的处理，代码如下：

import pandas as pd
import numpy as np
df = pd.read_csv(r'D:\努力学python\文章\安居客1.csv')
df
 
df1 = df['配套设施'].replace('[]',0)
df2 = []
for a in df1:
    if a == 0:
        df2.append(a)
    else:
        df2.append(a[2:-2])
df['配套设施'] = df2
df2
 
 
# df2 = df['标题']
# for i in df2:
#     print(i[2:-2])
 
 
 
 
 
df3 = df['标题']
df4 = []
for b in df3:
    df4.append(b[2:-2])
    
df['标题'] = df4
df4

** 4、得到的数据如下：**

5、将处理后的Excel数据表传送到本地的MySQL数据库中。

import pandas as pd
import numpy as np
df = pd.read_csv('C:/Users/jhwsx/Desktop/安居客2.csv')
 
 
from sqlalchemy import create_engine
engine = create_engine("mysql+mysqlconnector://root:root@127.0.0.1:3306/安居客",echo=False)
df.to_sql(name='安居客2',con=engine,if_exists="replace")

6、到mysql查看数据：“select 字段1，字段2，字段n from 安居客2”：