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Cqvip_main.py
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Cqvip_main.py
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#!/usr/bin/env python
# -*- coding:utf-8 -*-
# author:hcj
# @File : Cqvip_main.py
# datetime:2019/6/19 9:43
import argparse
import queue
import random
import sys
import threading
from urllib.parse import quote
import multiprocessing
from HCJ_py_timer import LoopTimer
import urllib.request
from bs4 import BeautifulSoup
import time
import re
from HCJ_Buff_Control import Read_buff, Write_buff
# 构造不同条件的关键词搜索
from HCJ_DB_Helper import HCJ_MySQL
from PublicDef import *
SearchDBName="Cqvip"
values = {
'1': 'k', # 标题
'2': 'w', # 作者
'3': 'k', # 关键词
'4': 'o', # 单位
'5': 'mn', # 刊名
}
headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20100101 Firefox/23.0'}
concurrent=int(Read_buff(file_buff="./Config.ini",settion='Setting',info='Cqvip_CollectNum').replace(' ',''))
conparse=int(Read_buff(file_buff="./Config.ini",settion='Setting',info='Cqvip_parsenum').replace(' ',''))
interval=int(Read_buff(file_buff="./Config.ini",settion='Setting',info='Cqvip_interval').replace(' ',''))
# 生成请求队列
req_list = queue.Queue()
# 生成数据队列 ，请求以后，响应内容放到数据队列里
data_list = queue.Queue()
class Parse(threading.Thread):
# 初始化属性
def __init__(self, number, data_list, req_thread):
super(Parse, self).__init__()
self.number = number # 线程编号
self.data_list = data_list # 数据队列
self.req_thread = req_thread # 请求队列，为了判断采集线程存活状态
self.is_parse = True # 判断是否从数据队列里提取数据
def run(self):
print('启动%d号解析线程' % self.number)
# 无限循环，
while True:
# 如何判断解析线程的结束条件
for t in self.req_thread: # 循环所有采集线程
if t.is_alive(): # 判断线程是否存活
break
else: # 如果循环完毕，没有执行break语句，则进入else
if self.data_list.qsize() == 0: # 判断数据队列是否为空
self.is_parse = False # 设置解析为False
# 判断是否继续解析
if self.is_parse or '0' in (Read_buff(file_buff="Config.ini", settion=SearchDBName, info='stopflag')): # 解析
try:
url, data = self.data_list.get(timeout=3) # 从数据队列里提取一个数据
except Exception as e: # 超时以后进入异常
data = None
# 如果成功拿到数据，则调用解析方法
if data is not None:
parse(url, data) # 调用解析方法
else:
break # 结束while 无限循环
print('退出%d号解析线程' % self.number)
# 页面解析函数
class Crawl(threading.Thread): # 采集线程类
# 初始化
def __init__(self, number, req_list, data_list):
# 调用Thread 父类方法
super(Crawl, self).__init__()
# 初始化子类属性
self.number = number
self.req_list = req_list
self.data_list = data_list
self.headers = {
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.89 Safari/537.36'
}
# 线程启动的时候调用
def run(self):
# 输出启动线程信息
print('启动采集线程%d号' % self.number)
# 如果请求队列不为空，则无限循环，从请求队列里拿请求url
while self.req_list.qsize() > 0 or '0' in (
Read_buff(file_buff="Config.ini", settion=SearchDBName, info='stopflag')):
# 从请求队列里提取url
url = self.req_list.get()
# print('%d号线程采集：%s' % (self.number, url))
# 防止请求频率过快，随机设置阻塞时间
time.sleep(random.randint(interval*10, (interval+2)*10)/10)
# 发起http请求，获取响应内容，追加到数据队列里，等待解析
response = GetSoup(url)
self.data_list.put([url, response]) # 向数据队列里追加
def Up_division_int(A, B):
'''
向上整除
:param A:
:param B:
:return:
'''
return int((A + B - 1) / B)
class Cqvip_Crawler:
def __init__(self, db, Input=None, SearchMode=None, StartTime=None, EndTime=None, StartPage=None,
SettingPath='./Config.ini'):
self.db = db
self.SearchName = SearchDBName # 万方
self.SettingPath = SettingPath # 配置文件地址
self._Perpage = 10 # 每页显示20
self._ResultDbTable = 'CqvipResult'
if Input is None and SearchMode is None:
self.StartTime = Read_buff(file_buff=self.SettingPath, settion=self.SearchName, info='starttime') # 开始年份
self.EndTime = Read_buff(file_buff=self.SettingPath, settion=self.SearchName, info='endtime') # 结束年份
self.StartPage = Read_buff(file_buff=self.SettingPath, settion=self.SearchName, info='startpage') # 开始页数
self.title = Read_buff(file_buff=self.SettingPath, settion=SearchDBName, info='title')
self.authors = Read_buff(file_buff=self.SettingPath, settion=SearchDBName, info='authors')
self.keywords = Read_buff(file_buff=self.SettingPath, settion=SearchDBName, info='keywords')
self.unit = Read_buff(file_buff=self.SettingPath, settion=SearchDBName, info='unit')
self.BaseKeyword = ""
if RemoveSpecialCharacter(self.title) != "":
self.BaseKeyword = self.BaseKeyword + "&k=" + quote(self.title)
if RemoveSpecialCharacter(self.authors) != "":
self.BaseKeyword = self.BaseKeyword + "&w=" + quote(self.authors)
if RemoveSpecialCharacter(self.keywords) != "":
self.BaseKeyword = self.BaseKeyword + "&k=" + quote(self.keywords)
if RemoveSpecialCharacter(self.unit) != "":
self.BaseKeyword = self.BaseKeyword + "&o=" + quote(self.unit)
else:
# Todo
pass
def GetMaxPage(self):
index_url = "http://www.cqvip.com/data/main/search.aspx?action=so&curpage=1&perpage=%s&%s" % (
str(self._Perpage), self.BaseKeyword)
soup = GetSoup(url=index_url)
deff = soup.select('p')[0].text
summarys = int(deff.split('\r\n')[1].split('"recordcount":')[1].split(',')[0].strip())
print("查询到共%s相关文献" % summarys)
self.MaxPage = Up_division_int(summarys, int(self._Perpage))
Write_buff(file_buff="Config.ini", settion=SearchDBName, info="maxpage", state=self.MaxPage)
return summarys, self.MaxPage
def WriteAllUrlIntoDBMain(self):
summarys, self.MaxPage = self.GetMaxPage() # 最大页数
self.StartPage = Read_buff(file_buff=self.SettingPath, settion=self.SearchName, info='startpage') # 开始页数
t = time.time()
Write_buff(file_buff="Config.ini", settion=SearchDBName, info="flag_get_all_url", state=0)
for i in range(int(self.StartPage), self.MaxPage):
print("%s采集器，共有%s页，当前为%s页，获得文献链接的进度完成%.2f" % (SearchDBName,self.MaxPage, i, (int(i) / int(self.MaxPage)) * 100))
Write_buff(file_buff="Config.ini", settion=SearchDBName, info="startpage", state=i + 1)
page_url = "http://www.cqvip.com/data/main/search.aspx?action=so&curpage=%s&perpage=20&%s" % (
str(i), self.BaseKeyword)
threading.Thread(target=self.WriteUrlIntoDB, args=(page_url, i)).start()
time.sleep(0.5)
Write_buff(file_buff="Config.ini", settion=SearchDBName, info="flag_get_all_url", state=1)
print(time.time() - t)
def WriteUrlIntoDB(self, page_url, page):
soup = GetSoup(url=page_url)
if soup:
deff = soup.find_all('th')
for k in range(len(deff)):
Href = deff[k].a['href']
if 'http' not in Href or 'www' not in Href:
Href = deff[k].a['href'].replace('\\', '')
url = "http://www.cqvip.com/" + quote(Href)
# _UrlList.append(url)
sql = "INSERT INTO `crawler`.`%s` ( `Url`,`Source`) VALUES ('%s','%s');" % (DbDatabuff,url,SearchDBName)
row = self.db.insert(sql) # 插入
def GetUrlFromDb(self, num=20):
sql = "select `Index`,`Url` from `%s` where `State`in (0,-10) and `Source`='%s' limit %s " % (DbDatabuff,SearchDBName,num)
_rows = self.db.do_sql(sql)
if _rows:
if len(_rows) > 0:
_UrlList = [x[1] for x in _rows]
for i in [x[0] for x in _rows]:
self.db.upda_sql("update `%s` set `State`=10 where `Index`='%s'" % (DbDatabuff,i))
return _UrlList
else:
return ""
def InitDict():
dir = {'url': '', 'title': '', 'authors': '', 'unit': '', 'publication': '', 'keywords': '', 'abstract': '',
'year': '', 'volume': '', 'issue': '', 'pagecode': '', 'doi': '', 'sponser': '', 'type': ''}
return dir
def GetSoup(url=None):
try:
req = urllib.request.Request(url=url, headers=headers)
request = urllib.request.urlopen(req, timeout=8)
html = request.read()
soup = BeautifulSoup(html, 'lxml')
except Exception as e:
db.upda_sql("update `%s` set `State`=-15 where `Url`='%s'"%(DbDatabuff,url))
print("Cqvip：无效链接", str(e), url)
soup=False
return soup
def parse( url, _soup):
if _soup is not None:
_Paper = InitDict()
_Paper['url'] = url # 获得【链接】
try:
deff = _soup.find('span', class_="detailtitle")
_Paper['title'] = deff.find('h1').text # 获得【标题】
str1 = deff.find('strong').text.split('\xa0\xa0')
_Paper['publication'] = re.search(r'《(.*)》', str1[0].split('|')[0]).group() # 获得【单位】
_Paper['authors'] = str1[0].split('|')[1] # 获得【作者】
_Paper['unit'] = str1[1] # 获得【出版社】
deff2 = _soup.select('table', class_="datainfo f14")
_Paper['abstract'] = deff2[0].text.replace('\n', '').split('：', 1)[1].split('：')[1] # 获得【摘要】
p = deff2[1].text
# _Paper['type'] = deff2[1].text.split('【分 类】', 1)[1].split('【关键词】')[0].replace('\n', '') # 获得【分类】
_Paper['keywords'] = deff2[1].text.split('【关键词】', 1)[1].split('【出 处】')[0].replace('\n', '') # 获得【关键词】
StrComeFrom = deff2[1].text.split('【出 处】', 1)[1].split('【收 录】')[0].replace('\n', '')
StrComeFrom = changeChineseNumToArab(StrComeFrom)
Strlist = re.split(r"[;,\s]\s*", StrComeFrom)
t = 0
for st in Strlist:
if st:
if "年" in st:
if '》' in st:
_Paper['year'] = st.split('》')[1] # 获得【日期】只要数字
else:
_Paper['year'] = st
_Paper['year'] = re.search(r'\d+', _Paper['year']).group()
if "共" not in st and "页" in st:
_Paper['pagecode'] = st.split('页')[0] if '页' in st else st # 获得【页码】
if "期" in st:
_Paper['issue'] = re.search(r'\d+', st).group() # 获得【期】
try:
InsetDbbyDict("`crawler`.`%s`" % Dbresult, _Paper, db,DbDatabuff,Dbresult)
except:
print(_Paper['url'], "插入失败")
except:
db.upda_sql("update `%s` set `State`=-15 where `Url`='%s'" % (DbDatabuff,_Paper['url']))
print(_Paper['url'],"goup解析出现错误")
# print(_Paper)
class ClockProcess(multiprocessing.Process):
def __init__(self, Crawler):
multiprocessing.Process.__init__(self)
self.Crawler = Crawler
def run(self):
_db = HCJ_MySQL()
_Cqvip = self.Crawler(db=_db)
_Cqvip.WriteAllUrlIntoDBMain()
print("结束")
def PutUrlToList(Cqvip, num):
UrlList = Cqvip.GetUrlFromDb(num=num)
if UrlList:
if len(UrlList) > 0:
for url in UrlList:
req_list.put(url)
else:
pass
def main():
ClockProcess(Cqvip_Crawler).start()
PutUrlToList(Cqvip, 20)
LoopTimer(0.5, PutUrlToList, args=(Cqvip, 20,)).start()
LoopTimer(1, ShowStatePro,args=(db,SearchDBName,DbDatabuff,Dbresult,)).start()
# 生成N个采集线程
req_thread = []
for i in range(concurrent):
t = Crawl(i + 1, req_list, data_list) # 创造线程
t.start()
req_thread.append(t)
# 生成N个解析线程
parse_thread = []
for i in range(conparse):
t = Parse(i + 1, data_list, req_thread) # 创造解析线程
t.start()
parse_thread.append(t)
for t in req_thread:
t.join()
for t in parse_thread:
t.join()
def init_main():
if '1' in str(Read_buff(file_buff="Config.ini", settion=SearchDBName, info='restart')):
CreatResultDBTable(db,Dbresult)
CreatUrlBuffTable(db,DbDatabuff)
time.sleep(0.05)
Write_buff(file_buff="Config.ini", settion=SearchDBName, info="restart", state=0)
Write_buff(file_buff="Config.ini", settion=SearchDBName, info="startpage", state=1)
Write_buff(file_buff="Config.ini", settion=SearchDBName, info="stopflag", state=0)
Write_buff(file_buff="Config.ini", settion=SearchDBName, info="flag_get_all_url", state=0)
if '0' in str(Read_buff(file_buff="Config.ini", settion=SearchDBName, info='restart')):
db.upda_sql("Update `%s` set `State`=0 where `State`=10"%DbDatabuff)
time.sleep(1)
ex_dbname = Read_buff(file_buff="Config.ini", settion=SearchDBName, info='ex_dbname')
DbDatabuff="databuff"+str(ex_dbname)
Dbresult="result"+str(ex_dbname)
def ProcessMain():
global db,Cqvip
db = HCJ_MySQL()
Cqvip = Cqvip_Crawler(db=db)
multiprocessing.freeze_support() # 多进程打包的话必须加上
init_main()
if '0' in (Read_buff(file_buff="Config.ini", settion=SearchDBName, info='stopflag')) :
main()
if __name__ == '__main__':
# ProcessMain()
db = HCJ_MySQL()
Cqvip = Cqvip_Crawler(db=db)
url="http://www.cqvip.com/%22/QK/93419A/200901/29132001.html%22"
g=GetSoup(url)
parse(url,g)