python crawls Amazon book information code sharing

I have a need to grab 1 simple book information and store it in mysql database, such as cover picture, title, type, author, resume, publisher, language.

After comparison, I decided to fulfill my needs in Amazon.

When I analyzed the site, I found that Amazon had an advanced search function, which I used to get details of books.

Since Amazon's advanced search is based on get method, by analyzing the URL of the search results, it can be concluded that the node parameter represents the book type. field-binding_browse-bin is for book decoration.

So I fixed the book decoration for paperback, and the type of book, can only run each time, climb to pick up a type of book sad

The next step is to use regular expressions to match the desired information from the book details page.

The following source code, naming is not very canonical...

import requests
import sys
import re
import pymysql

class product:
  type=" history "
  name=""
  author=""
  desciption=""
  pic1=""
  languages=""
  press=""

def getProUrl():
  urlList = []
  headers = {"User-Agent":"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36"}
  session = requests.Session()
  furl="https://www.amazon.cn/gp/search/ref=sr_adv_b/?search-alias=stripbooks&field-binding_browse-bin=2038564051&sort=relevancerank&page="
  for i in range(1,7):
    html=""
    print(furl+str(i)) 
    html = session.post(furl+str(i)+'&node=658418051',headers = headers)
    html.encoding = 'utf-8'
    s=html.text.encode('gb2312','ignore').decode('gb2312')
    url=r'</li><li id=".*?" data-asin="(.+?)" class="s-result-item celwidget">'
    reg=re.compile(url,re.M)
    items = reg.findall(html.text)
    for i in range(0,len(items)):
      urlList.append(items[i])
  urlList=set(urlList)
  return urlList

def getProData(url):
  pro = product()
  headers = {"User-Agent":"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36"}
  session = requests.Session()
  zurl="https://www.amazon.cn/dp/"
  html = session.get(zurl+url,headers = headers)
  html.encoding = 'utf-8'
  s=html.text.encode('gb2312','ignore').decode('gb2312')
  pro.pic1=getProPic(html)
  pro.name=getProName(html)
  pro.author=getProAuthor(html)
  pro.desciption=getProDescrip(html)
  pro.press=getProPress(html)
  pro.languages=getProLanguages(html)
  return pro

def getProPic(html):
  pic=r'id="imgBlkFront" data-a-dynamic-image="{&quot;(.+?)&quot;.*?}"'
  reg=re.compile(pic,re.M)
  items = reg.findall(html.text)
  if len(items)==0:
    return ""
  else:
    return items[0]

def getProName(html):
  name=r'<div class="ma-title"><p class="wraptext goto-top">(.+?)<span'
  reg=re.compile(name,re.M)
  items = reg.findall(html.text)
  if len(items)==0:
    return ""
  else:
    return items[0]

def getProAuthor(html):
  author=r'<span class="author.{0,20}" data-width="".{0,30}>.*?<a class="a-link-normal" href=".*?books" rel="external nofollow" >(.+?)</a>.*?<span class="a-color-secondary">(.+?)</span>'
  reg=re.compile(author,re.S)
  items = reg.findall(html.text)
  au=""
  for i in range(0,len(items)):
    au=au+items[i][0]+items[i][1]
  return au

def getProDescrip(html):
  Descrip=r'<noscript>.{0,30}<div>(.+?)</div>.{0,30}<em></em>.{0,30}</noscript>.{0,30}<div id="outer_postBodyPS"'
  reg=re.compile(Descrip,re.S)
  items = reg.findall(html.text)
  if len(items)==0:
    return ""
  else:
    position = items[0].find(' Poster: ')
    descrip=items[0]
    if position != -1:
      descrip=items[0][0:position]
    return descrip.strip()

def getProPress(html):
  press=r'<li><b> Press. :</b>(.+?)</li>'
  reg=re.compile(press,re.M)
  items = reg.findall(html.text)
  if len(items)==0:
    return ""
  else:
    return items[0].strip()


def getProLanguages(html):
  languages=r'<li><b> Languages: </b>(.+?)</li>'
  reg=re.compile(languages,re.M)
  items = reg.findall(html.text)
  if len(items)==0:
    return ""
  else:
    return items[0].strip()

def getConnection():
  config = {
     'host':'121.**.**.**',
     'port':3306,
     'user':'root',
     'password':'******',
     'db':'home_work',
     'charset':'utf8',
     'cursorclass':pymysql.cursors.DictCursor,
     }
  connection = pymysql.connect(**config)
  return connection

urlList = getProUrl()
i = 0
for d in urlList:
  i = i + 1
  print (i)
  connection = getConnection()
  pro = getProData(d)
  try:
    with connection.cursor() as cursor:
      sql='INSERT INTO books (type,name,author,desciption,pic1,languages,press) VALUES (%s,%s,%s,%s,%s,%s,%s)'
      cursor.execute(sql,(pro.type,pro.name,pro.author,pro.desciption,pro.pic1,pro.languages,pro.press))
    connection.commit()
  finally:
    connection.close();

conclusion

The above is all about python crawling Amazon books information code sharing, hope to help you. Those who are interested can continue to see this site:

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If there is any deficiency, please let me know. Thank you for your support!