Python爬取數(shù)據(jù)并寫(xiě)入MySQL數(shù)據(jù)庫(kù)的實(shí)例
首先我們來(lái)爬取 http://html-color-codes.info/color-names/ 的一些數(shù)據(jù)。

按 F12 或 ctrl+u 審查元素,結(jié)果如下:

結(jié)構(gòu)很清晰簡(jiǎn)單,我們就是要爬 tr 標(biāo)簽里面的 style 和 tr 下幾個(gè)并列的 td 標(biāo)簽,下面是爬取的代碼:
#!/usr/bin/env python
# coding=utf-8
import requests
from bs4 import BeautifulSoup
import MySQLdb
print('連接到mysql服務(wù)器...')
db = MySQLdb.connect("localhost","hp","Hp12345.","TESTDB")
print('連接上了!')
cursor = db.cursor()
cursor.execute("DROP TABLE IF EXISTS COLOR")
sql = """CREATE TABLE COLOR (
Color CHAR(20) NOT NULL,
Value CHAR(10),
Style CHAR(50) )"""
cursor.execute(sql)
hdrs = {'User-Agent':'Mozilla/5.0 (X11; Fedora; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko)'}
url = "http://html-color-codes.info/color-names/"
r = requests.get(url, headers = hdrs)
soup = BeautifulSoup(r.content.decode('gbk', 'ignore'), 'lxml')
trs = soup.find_all('tr') # 獲取全部tr標(biāo)簽成為一個(gè)列表
for tr in trs: # 遍歷列表里所有的tr標(biāo)簽單項(xiàng)
style = tr.get('style') # 獲取每個(gè)tr標(biāo)簽里的屬性style
tds = tr.find_all('td') # 將每個(gè)tr標(biāo)簽下的td標(biāo)簽獲取為列表
td = [x for x in tds] # 獲取的列表
name = td[1].text.strip() # 直接從列表里取值
hex = td[2].text.strip()
# print u'顏色: ' + name + u'顏色值: '+ hex + u'背景色樣式: ' + style
# print 'color: ' + name + '\tvalue: '+ hex + '\tstyle: ' + style
insert_color = ("INSERT INTO COLOR(Color,Value,Style)" "VALUES(%s,%s,%s)")
data_color = (name, hex, style)
cursor.execute(insert_color, data_color)
db.commit()
# print '******完成此條插入!'
print '爬取數(shù)據(jù)并插入mysql數(shù)據(jù)庫(kù)完成...'
運(yùn)行結(jié)果:

$ mysql -u hp -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 28 Server version: 5.7.17 MySQL Community Server (GPL) Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> use TESTDB Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> select * from COLOR; +----------------------+--------+----------------------------------------+ | Color | Value | Style | +----------------------+--------+----------------------------------------+ | IndianRed | CD5C5C | background-color:indianred; | | LightCoral | F08080 | background-color:lightcoral; | | Salmon | FA8072 | background-color:salmon; | | DarkSalmon | E9967A | background-color:darksalmon; | | LightSalmon | FFA07A | background-color:lightsalmon; | | Crimson | DC143C | background-color:crimson; | | Red | FF0000 | background-color:red; | | FireBrick | B22222 | background-color:fireBrick; | | DarkRed | 8B0000 | background-color:darkred; | | Pink | FFC0CB | background-color:pink; | | LightPink | FFB6C1 | background-color:lightpink; | | HotPink | FF69B4 | background-color:hotpink; | | DeepPink | FF1493 | background-color:deeppink; | ... | AntiqueWhite | FAEBD7 | background-color:antiquewhite; | | Linen | FAF0E6 | background-color:linen; | | LavenderBlush | FFF0F5 | background-color:lavenderblush; | | MistyRose | FFE4E1 | background-color:mistyrose; | | Gainsboro | DCDCDC | background-color:gainsboro; | | LightGrey | D3D3D3 | background-color:lightgrey; | | Silver | C0C0C0 | background-color:silver; | | DarkGray | A9A9A9 | background-color:darkgray; | | Gray | 808080 | background-color:gray; | | DimGray | 696969 | background-color:dimgray; | | LightSlateGray | 778899 | background-color:lightslategray; | | SlateGray | 708090 | background-color:slategray; | | DarkSlateGray | 2F4F4F | background-color:darkslategray; | | Black | 000000 | background-color:black; | +----------------------+--------+----------------------------------------+ 143 rows in set (0.00 sec)
以上這篇Python爬取數(shù)據(jù)并寫(xiě)入MySQL數(shù)據(jù)庫(kù)的實(shí)例就是小編分享給大家的全部?jī)?nèi)容了,希望能給大家一個(gè)參考,也希望大家多多支持腳本之家。
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