一个咸鱼的Python爬虫之路（四）：将爬取数据存入mysql

Python 与 mysql 数据连接 用pymysql

import pymysql

conn =pymysql.connect(host=‘127.0.0.1‘,user=‘root‘,password=‘123456‘,db=‘company‘,charset="utf8")

cur=conn.cursor()
sql=‘’‘

’‘’
employee=cur.execute(sql)
conn.commit()
cur.close()
conn.close()

基本操作大概就这样
这次爬取的是淘宝商品页面

过程就略了放代码

import requests
import re
import pymysql

def getHTMLtext(url):
    try:
       r=requests.get(url,timeout=100)
       r.raise_for_status()
       r.encoding=r.apparent_encoding
       return r.text
    except:
        return ""
def getpage(itl,html):
    try:
        plt=re.findall(r‘"view_price":"[\d.]*"‘,html)
        nlt=re.findall(r‘"raw_title":".*?"‘,html)
        for i in range(len(plt)):
            price = eval(plt[i].split(‘:‘)[1])
            title = eval(nlt[i].split(‘:‘)[1])
            itl.append([price, title])
    except:
       print("")

def printgoods(itl):
    tplt = "{:2}\t{:8}\t{:16}"
    print(tplt.format("序号", "价格", "商品名称"))

    count = 0
    conn = pymysql.connect(host=‘127.0.0.1‘, user=‘root‘, password=‘123456‘, db=‘company‘,charset="utf8")

    cur = conn.cursor()

    sqlc = ‘‘‘
                create table coffee(
                id int(11) not null auto_increment primary key,
                name varchar(255) not null,
                price float not null)DEFAULT CHARSET=utf8;
                ‘‘‘

    try:
        A = cur.execute(sqlc)
        conn.commit()
        print(‘成功‘)
    except:
        print("错误")
    for g in itl:
        count = count + 1
        b=tplt.format(count, g[0], g[1])

        sqla = ‘‘‘
        insert into  coffee(name,price)
        values(%s,%s);
       ‘‘‘
        try:
            B = cur.execute(sqla,(g[1],g[0]))
            conn.commit()
            print(‘成功‘)
        except:
            print("错误")

        # save_path = ‘D:/taobao.txt‘
        # f=open(save_path,‘a‘)
        #
        # f.write(b+‘\n‘)
        # f.close()

    conn.commit()
    cur.close()
    conn.close()

def main():
    goods="咖啡"
    depth =2
    start_url=‘https://s.taobao.com/search?q=‘+goods
    List =[]
    for i in range(depth):
        try:
            url =start_url +"&s="+ str(i*44)
            html=getHTMLtext(url)
            getpage(List,html)
        except:
           continue

    print(printgoods(List))
    # savefiles(data)

main()

可以看到所需要的数据已经存入数据库了