小爬麦子学院教师

任务描述：将麦子学院指定网页下教师信息（姓名，职称，介绍信息）爬取下来并保存到数据库。

1.页面分析：

 

2.代码：

mydb.py:

#!/usr/bin/env/python
#coding:utf-8'''
操作数据库
'''
import MySQLdb as dbclass DBHelper():def __init__(self,tableName):self.tableName=tableNametry:self.conn=db.connect(host='localhost',port = 3306,user='root',passwd='root',db ='pythondb',charset='utf8')self.cursor=self.conn.cursor()except Exception as e:print(e)def createTable(self,pros,types):sql='create table '+self.tableName+'('for i in range(len(pros)):if i==0:sql+=pros[i]+' '+types[i]else:sql+=','+pros[i]+' '+types[i]sql+=')'self.cursor.execute(sql)def insert(self,sql):try:print(sql)self.cursor.execute(sql)print('insert successfully!')except Exception as e:print('insert failed!')self.conn.rollback()def delete(self,sql):try:print(sql)self.cursor.execute(sql)print('delete successfully!')except Exception as e:print('delete failed!')self.conn.rollback()def queryBySql(self,sql):return self.cursor.execute(sql)def queryAll(self):self.cursor.execute('select * from '+self.tableName)# 获取所有记录列表results = self.cursor.fetchall()return resultsdef close(self):self.cursor.close()self.conn.commit()self.conn.close()if __name__=='__main__':print('test mydb DBHelper')helper=DBHelper('teacher')# pros=['name','title','production']# types=['varchar(20)','varchar(50)','varchar(200)']# dbhelper.createTable(pros,types)sql='insert into teacher values("李希","成都莫比乌斯科技创始人","精通Windows及Linux系统平台的运维、大型分布式架构网站的部署和管理，具有15年资深IT从业经验。")'helper.insert(sql)for x in helper.queryAll():print(x)helper.close()

mymodel.py:

#!/usr/bin/env/python
#coding:utf-8class Teacher():def __init__(self,name,title,production):self._name=nameself._title=titleself._production=productiondef get_name(self):return self._namedef set_name(self,value):self._name=valuedef get_title(self):return self._titledef set_title(self,value):self._title=valuedef get_production(self):return self._productiondef set_production(self,value):self._production=valuedef __str__(self):return 'name ='+self.name+',title ='+self.title+',production ='+self.productionname=property(get_name,set_name)title=property(get_title,set_title)production=property(get_production,set_production)if __name__=='__main__':print('test mymodel Teacher')p=Teacher('a','t','p')print(p)p.name='aa'p.title='tt'p.production='pp'print(p)

main.py:

#!/usr/bin/env/python
#coding:utf-8
import mydb,mymodel
import urllib
from urllib import request
import re
class SpiderMan:def __init__(self,url):self.url=urlself.dbhelper=mydb.DBHelper('teacher')def crawl(self):#patternpattern_div=r"<div class='sliderPlay' id='sliderPlay'>[\s\S]*div id='btnBox' class='btnBox'>"pattern_name=r'<p class="first">\s*(.+)\s*</p>'pattern_title=r'<p class="second">\s*(.+)\s*</p>'pattern_production=r'<p class="third">\s*(.+)\s*</p>'#requestheaders={"User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36",'Host':'www.maiziedu.com','Referer':'www.maiziedu.com'}req=request.Request(self.url,headers=headers)#responseresp=request.urlopen(req)html=resp.read().decode('utf-8')#analysishtml_div=re.search(pattern_div,html).group()name_list=re.findall(pattern_name,html_div)title_list=re.findall(pattern_title,html_div)production_list=re.findall(pattern_production,html_div)# print("name_list:")# print(name_list)# print("title_list:")# print(title_list)# print("production_list:")# print(production_list)#savefor i in range(len(name_list)):name=name_list[i]title=title_list[i]production=production_list[i]sql='insert into '+self.dbhelper.tableName+' values('sql+='"'+name+'"'+','+'"'+title+'"'+','+'"'+production+'"'sql+=')'self.dbhelper.insert(sql)#closeself.dbhelper.close()if __name__=='__main__':url='http://www.maiziedu.com/line/python/'spider=SpiderMan(url)spider.crawl()

3.运行结果：