本文实例讲述了Python3实现的爬虫爬取数据并存入mysql数据库操作。分享给大家供大家参考，具体如下：
爬一个电脑客户端的订单。罗总推荐，抓包工具用的是HttpAnalyzerStdV7，与chrome自带的F12类似。客户端有接单大厅，罗列所有订单的简要信息。当单子被接了，就不存在了。我要做的是新出订单就爬取记录到我的数据库zyc里。
设置每10s爬一次。
抓包工具页面如图：
首先是爬虫，先找到数据存储的页面，再用正则爬出。
# -*- coding:utf-8 -*-
import re
import requests
import pymysql #Python3的mysql模块，Python2 是mysqldb
import datetime
import time
def GetResults():
requests.adapters.DEFAULT_RETRIES = 5 #有时候报错，我在网上找的不知道啥意思，好像也没用。
reg = [r'"id":(.*"order_no":"(.*",',
r'"order_title":"(.*",',
r'"publish_desc":"(.*",',
r'"game_area":"(.*",',
r'"order_current":"(.*",',
r'"order_content":"(.*",',
r'"order_hours":(.*"order_price":"(.*",',
r'"add_price":"(.*",',
r'"safe_money":"(.*",',
r'"speed_money":"(.*",',
r'"order_status_desc":"(.*",',
r'"order_lock_desc":"(.*",',
r'"cancel_type_desc":"(.*",',
r'"kf_status_desc":"(.*",',
r'"is_show_pwd":(.*"game_pwd":"(.*",',
r'"game_account":"(.*",',
r'"game_actor":"(.*",',
r'"left_hours":"(.*",',
r'"created_at":"(.*",',
r'"account_id":"(.*",',
r'"mobile":"(.*",',
r'"contact":"(.*",',
r'"qq":"(.*"},']
results=[]
try:
for l in range(1,2): #页码
proxy = {'HTTP':'61.135.155.82:443'} #代理ip
html = requests.get('https://www.dianjingbaozi.com/api/dailian/soldier/hall"order_no":"(.*","game_area"', html) #获取订单编号，因为订单详情页url与订单编号有关。
for j in range(len(outcome_reg_order_no)):
html_order = requests.get('http://www.lpergame.com/api/dailian/order/detail"失败")
pass
根据爬虫结果建表，这里变量名要准确。并且要设置唯一索引，使每次爬的只有新订单入库。
def mysql_create():
mysql_host = ''
mysql_db = 'zyc'
mysql_user = 'zyc'
mysql_password = ''
mysql_port = 3306
db = pymysql.connect(host=mysql_host, port=mysql_port, user=mysql_user, password=mysql_password, db=mysql_db,charset='utf8') # 连接数据库编码注意是utf8，不然中文结果输出会乱码
sql_create = "CREATE TABLE DUMPLINGS (id CHAR(10),order_no CHAR(50),order_title VARCHAR(265),publish_desc VARCHAR(265),game_name VARCHAR(265)," "game_area VARCHAR(265),game_area_distinct VARCHAR(265),order_current VARCHAR(3908),order_content VARCHAR(3908),order_hours CHAR(10)," "order_price FLOAT(10),add_price FLOAT(10),safe_money FLOAT(10),speed_money FLOAT(10),order_status_desc VARCHAR(265)," "order_lock_desc VARCHAR(265),cancel_type_desc VARCHAR(265),kf_status_desc VARCHAR(265),is_show_pwd TINYINT,game_pwd CHAR(50)," "game_account VARCHAR(265),game_actor VARCHAR(265),left_hours VARCHAR(265),created_at VARCHAR(265),account_id CHAR(50)," "mobile VARCHAR(265),mobile2 VARCHAR(265),contact VARCHAR(265),contact2 VARCHAR(265),qq VARCHAR(265)," "PRIMARY KEY (`id`),UNIQUE KEY `no`(`order_no`))ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8"
sql_key="CREATE UNIQUE INDEX id ON DUMPLINGS(id)"
cursor = db.cursor()
cursor.execute("DROP TABLE IF EXISTS DUMPLINGS")
cursor.execute(sql_create)# 执行SQL语句
cursor.execute(sql_key)
db.close() # 关闭数据库连
把数据导入Mysql，注意编码和字段之间的匹配。
def IntoMysql(results):
mysql_host = ''
mysql_db = 'zyc'
mysql_user = 'zyc'
mysql_password = ''
mysql_port = 3306
db = pymysql.connect(host=mysql_host, port=mysql_port, user=mysql_user, password=mysql_password, db=mysql_db,charset='utf8') # 连接数据库编码注意是utf8，不然中文结果输出会乱码
cursor = db.cursor()
for j in range(len(results)):
try:
sql = "INSERT INTO DUMPLINGS(id,order_no,order_title,publish_desc ,game_name," "game_area,game_area_distinct,order_current,order_content,order_hours," "order_price,add_price,safe_money,speed_money,order_status_desc," "order_lock_desc,cancel_type_desc,kf_status_desc,is_show_pwd,game_pwd," "game_account,game_actor,left_hours,created_at,account_id," "mobile,mobile2,contact,contact2,qq) VALUES ("
for i in range(len(results[j])):
sql = sql + "'" + results[j][i] + "',"
sql = sql[:-1] + ")"
sql = sql.encode('utf-8')
cursor.execute(sql)
db.commit()
except:pass
db.close()
每十秒运行一次。
mysql_create()
i=0
while True:
results = GetResults()
IntoMysql(results)
i=i+1
print("爬虫次数:",i)
time.sleep(10)
结果如图：
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