将爬取数据存入mysql

Python 与 mysql 数据连接 用pymysql

<span style="color: #0000ff">import<span style="color: #000000"> pymysql



conn =pymysql.connect(host=<span style="color: #800000">'<span style="color: #800000">127.0.0.1<span style="color: #800000">',user=<span style="color: #800000">'<span style="color: #800000">root<span style="color: #800000">',passw<a href="http://www.php.cn/wiki/1360.html" target="_blank">ord</a>=<span style="color: #800000">'<span style="color: #800000">123456<span style="color: #800000">',db=<span style="color: #800000">'<span style="color: #800000">company<span style="color: #800000">',char<a href="http://www.php.cn/code/8209.html" target="_blank">set</a>=<span style="color: #800000">"<span style="color: #800000">utf8<span style="color: #800000">"<span style="color: #000000">)

cur=<span style="color: #000000">conn.cursor()
sql=‘’‘<br><br>’‘’<span style="color: #000000">employee=<span style="color: #000000">cur.execute(sql)
conn.commit()
cur.close()
conn.close()</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

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 requestsimport reimport pymysqldef 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

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