百度圖片爬蟲(python語言)
上一篇我寫了如何爬取百度網盤的爬蟲，在這裏仍是重溫一下，把連接附上：html
http://www.cnblogs.com/huangx...python
這一篇我想寫寫如何爬取百度圖片的爬蟲，這個爬蟲也是：搜搜gif（在線製做功能點我） 的爬蟲代碼，其實爬蟲總體框架仍是差很少的，但就是會涉及到圖片的的一些處理，仍是花費了我很多時間的，因此我請閱讀的本爬蟲的孩子仍是認真一些，畢竟程序猿都不容易啊。好的，我也不想多說，爬蟲的代碼我會分享到去轉盤網，想下載本爬蟲代碼的孩子請點我下載，若是沒有下載到，請點擊這個連接。json
附代碼：cookie
PS:不會python的孩子趕快去補補吧，先把基礎搞清楚再說app
#coding:utf-8
"""
Created on 2015-9-17
@author: huangxie
"""
import time,math,os,re,urllib,urllib2,cookielib
from bs4 import BeautifulSoup
import time
import re
import uuid
import json
from threading import Thread
from Queue import Queue
import MySQLdb as mdb
import sys
import threading
import utils
import imitate_browser
from MySQLdb.constants.REFRESH import STATUS
reload(sys)
sys.setdefaultencoding('utf-8')
DB_HOST = '127.0.0.1'
DB_USER = 'root'
DB_PASS = 'root'
proxy = {u'http':u'222.39.64.13:8118'}
TOP_URL="http://image.baidu.com/i?tn=resultjsonavatarnew&ie=utf-8&word={word}&pn={pn}&rn={rn}"
KEYWORD_URL="https://www.baidu.com/s?ie=utf-8&f=8&tn=baidu&wd={wd}"
"""
i_headers = {'User-Agent':'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11',
'Accept':'json;q=0.9,*/*;q=0.8',
'Accept-Charset':'utf-8;q=0.7,*;q=0.3',
'Accept-Encoding':'gzip',
'Connection':'close',
'Referer':None #注意若是依然不能抓取的話，這裏能夠設置抓取網站的host
}
"""
i_headers = {'User-Agent':'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.48'}
def GetDateString():
x = time.localtime(time.time())
foldername = str(x.__getattribute__("tm_year"))+"-"+str(x.__getattribute__("tm_mon"))+"-"+str(x.__getattribute__("tm_mday"))
return foldername
class BaiduImage(threading.Thread):
def __init__(self):
Thread.__init__(self)
self.browser=imitate_browser.BrowserBase()
self.chance=0
self.chance1=0
self.request_queue=Queue()
self.wait_ana_queue=Queue()
#self.key_word_queue.put((("動態圖", 0, 24)))
self.count=0
self.mutex = threading.RLock() #可重入鎖，使單線程能夠再次得到已經得到的鎖
self.commit_count=0
self.ID=500
self.next_proxy_set = set()
self.dbconn = mdb.connect(DB_HOST, DB_USER, DB_PASS, 'sosogif', charset='utf8')
self.dbconn.autocommit(False)
self.dbcurr = self.dbconn.cursor()
self.dbcurr.execute('SET NAMES utf8')
"""
def run(self):
while True:
self.get_pic()
"""
def work(self,item):
print "start thread",item
while True: #MAX_REQUEST條以上則等待
self.get_pic()
self.prepare_request()
def format_keyword_url(self,keyword):
return KEYWORD_URL.format(wd=keyword).encode('utf-8')
def generateSeed(self,url):
html = self.browser.openurl(url).read()
if html:
try:
soup = BeautifulSoup(html)
trs = soup.find('div', id='rs').find('table').find_all('tr') #得到全部行
for tr in trs:
ths=tr.find_all('th')
for th in ths:
a=th.find_all('a')[0]
keyword=a.text.strip()
if "動態圖" in keyword or "gif" in keyword:
print "keyword",keyword
self.dbcurr.execute('select id from info where word=%s',(keyword))
y = self.dbcurr.fetchone()
if not y:
self.dbcurr.execute('INSERT INTO info(word,status,page_num,left_num,how_many) VALUES(%s,0,0,0,0)',(keyword))
self.dbconn.commit()
except:
pass
def prepare_request(self):
self.lock()
self.dbcurr.execute('select * from info where status=0')
result = self.dbcurr.fetchone()
if result:
id,word,status,page_num,left_num,how_many=result
self.request_queue.put((id,word,page_num))
if page_num==0 and left_num==0 and how_many==0:
url=self.format_keyword_url(word)
self.generateSeed(url)
html=""
try:
url=self.format_top_url(word, page_num, 24)
html = self.browser.openurl(url).read()
except Exception as err:
print "err",err
#pass
if html!="":
how_many=self.how_many(html)
print "how_many",how_many
if how_many==None:
how_many=0
t=math.ceil(how_many/24*100) #只要前1/100便可
num = int(t)
for i in xrange(0,num-1):
self.dbcurr.execute('INSERT INTO info(word,status,page_num,left_num,how_many) VALUES(%s,%s,%s,%s,%s)',(word,0,i*24,num-i,how_many))
self.dbcurr.execute('update info SET status=1 WHERE id=%s',(id)) #置爲已經訪問
self.dbconn.commit()
self.unlock()
def start_work(self,req_max):
for item in xrange(req_max):
t = threading.Thread(target=self.work, args=(item,))
t.setDaemon(True)
t.start()
def lock(self): #加鎖
self.mutex.acquire()
def unlock(self): #解鎖
self.mutex.release()
def get_para(self,url,key):
values = url.split('?')[-1]
for key_value in values.split('&'):
value=key_value.split('=')
if value[0]==key:
return value[1]
return None
def makeDateFolder( self,par,child):
#self.lock()
if os.path.isdir( par ):
path=par + '//' + GetDateString()
newFolderName = path+'//'+child
if not os.path.isdir(path):
os.mkdir(path)
if not os.path.isdir( newFolderName ):
os.mkdir( newFolderName )
return newFolderName
else:
return par
#self.unlock()
def parse_json(self,data):
ipdata = json.loads(data)
try:
if ipdata['imgs']:
for n in ipdata['imgs']: #data子項
if n['objURL']:
try:
proxy_support = urllib2.ProxyHandler(proxy)
opener = urllib2.build_opener(proxy_support)
urllib2.install_opener(opener)
#print "proxy",proxy
self.lock()
self.dbcurr.execute('select ID from pic_info where objURL=%s', (n['objURL']))
y = self.dbcurr.fetchone()
#print "y=",y
if y:
print "database exist"
self.unlock() #continue 前解鎖
continue
else:
real_extension=utils.get_extension(n['objURL'])
req = urllib2.Request(n['objURL'],headers=i_headers)
resp = urllib2.urlopen(req,None,5)
dataimg=resp.read()
name=str(uuid.uuid1())
filename=""
if len(real_extension)>4:
real_extension=".gif"
real_extension=real_extension.lower()
if real_extension==".gif":
filename =self.makeDateFolder("E://sosogif", "d"+str(self.count % 60))+"//"+name+"-www.sosogif.com-搜搜gif貢獻"+real_extension
self.count+=1
else:
filename =self.makeDateFolder("E://sosogif", "o"+str(self.count % 20))+"//"+name+"-www.sosogif.com-搜搜gif貢獻"+real_extension
self.count+=1
"""
name=str(uuid.uuid1())
filename=""
if len(real_extension)>4:
real_extension=".gif"
filename =self.makeDateFolder("E://sosogif", "d"+str(self.count % 60))+"//"+name+"-www.sosogif.com-搜搜gif貢獻"+real_extension
self.count+=1
"""
try:
if not os.path.exists(filename):
file_object = open(filename,'w+b')
file_object.write(dataimg)
file_object.close()
self.anaylis_info(n,filename,real_extension) #入庫操做
else:
print "file exist"
except IOError,e1:
print "e1=",e1
pass
self.unlock()
except IOError,e2:
#print "e2=",e2
pass
self.chance1+=1
except Exception as parse_error:
print "parse_error",parse_error
pass
def title_dealwith(self,title):
#print "title",title
a=title.find("<strong>")
temp1=title[0:a]
b=title.find("</strong>")
temp2=title[a+8:b]
temp3=title[b+9:len(title)]
return (temp1+temp2+temp3).strip()
def anaylis_info(self,n,filename,real_extension):
print "success."
#if self.wait_ana_queue.qsize()!=0:
#n,filename,real_extension=self.wait.ana_queue.get()
#self.lock()
objURL=n['objURL'] #圖片地址
fromURLHost=n['fromURLHost'] #來源網站
width=n['width'] #寬度
height=n['height'] #高度
di=n['di'] #用來惟一標識
type=n['type'] #格式
fromPageTitle=n['fromPageTitle'] #來自網站
keyword=self.title_dealwith(fromPageTitle)
cs=n['cs'] #未知
os=n['os'] #未知
temp = time.time()
x = time.localtime(float(temp))
acTime = time.strftime("%Y-%m-%d %H:%M:%S",x) #爬取時間
self.dbcurr.execute('select ID from pic_info where cs=%s', (cs))
y = self.dbcurr.fetchone()
if not y:
print 'add pic',filename
self.commit_count+=1
self.dbcurr.execute('INSERT INTO pic_info(objURL,fromURLHost,width,height,di,type,keyword,cs,os,acTime,filename,real_extension) VALUES(%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)',(objURL,fromURLHost,width,height,di,type,keyword,cs,os,acTime,filename,real_extension))
if self.commit_count==10:
self.dbconn.commit()
self.commit_count=0
#self.unlock()
def format_top_url(self,word,pn,rn):
url = TOP_URL.format(word=word, pn=pn,rn=rn).encode('utf-8')
return url
def how_many(self,data):
try:
ipdata = json.loads(data)
if ipdata['displayNum']>0:
how_many=ipdata['displayNum']
return int(how_many)
else:
return 0
except Exception as e:
pass
def get_pic(self):
"""
word="gif"
pn=0
rn=24
if self.key_word_queue.qsize()!=0:
word,pn,rn=self.key_word_queue.get()
url=self.format_top_url(word,pn,rn)
global proxy
if url:
try:
html=""
try:
req = urllib2.Request(url,headers=i_headers)
response = urllib2.urlopen(req, None,5)
#print "url",url
html = self.browser.openurl(url).read()
except Exception as err:
print "err",err
#pass
if html:
how_many=self.how_many(html)
#how_many=10000
print "how_many",how_many
word=self.get_para(url,"word")
rn=int(self.get_para(url,"rn"))
t=math.ceil(how_many/rn)
num = int(t)
for item in xrange(0,num-1):
"""
try:
global proxy
print "size of queue",self.request_queue.qsize()
if self.request_queue.qsize()!=0:
id,word,page_num = self.request_queue.get()
u=self.format_top_url(word,page_num,24)
self.lock()
self.dbcurr.execute('update info SET status=1 WHERE id=%s',(id))
self.dbconn.commit()
if self.chance >0 or self.chance1>1: #任何一個出問題都給換代理
if self.ID % 100==0:
self.dbcurr.execute("select count(*) from proxy")
for r in self.dbcurr:
count=r[0]
if self.ID>count:
self.ID=50
self.dbcurr.execute("select * from proxy where ID=%s",(self.ID))
results = self.dbcurr.fetchall()
for r in results:
protocol=r[1]
ip=r[2]
port=r[3]
pro=(protocol,ip+":"+port)
if pro not in self.next_proxy_set:
self.next_proxy_set.add(pro)
self.chance=0
self.chance1=0
self.ID+=1
self.unlock()
proxy_support = urllib2.ProxyHandler(proxy)
opener = urllib2.build_opener(proxy_support)
urllib2.install_opener(opener)
html=""
try:
req = urllib2.Request(u,headers=i_headers)
#print "u=",u
response = urllib2.urlopen(req, None,5)
html = response.read()
if html:
#print "html",type(html)
self.parse_json(html)
except Exception as ex1:
#print "error=",ex1
pass
self.chance+=1
if self.chance>0 or self.chance1>1:
if len(self.next_proxy_set)>0:
protocol,socket=self.next_proxy_set.pop()
proxy= {protocol:socket}
print "change proxy finished<<",proxy,self.ID
except Exception as e:
print "error1",e
pass
if __name__ == '__main__':
app = BaiduImage()
app.start_work(80)
#app.generateSeed()
while 1:
pass
本人建個qq羣，歡迎你們一塊兒交流技術， 羣號：512245829 喜歡微博的朋友關注：轉盤娛樂便可框架
相關文章
- 1. 百度圖片爬蟲-python版-如何爬取百度圖片?
- 2. python 爬蟲爬取百度圖片
- 3. 【python爬蟲】爬取百度圖片
- 4. 百度圖片小爬蟲
- 5. 百度圖片爬蟲
- 6. PHP爬蟲百度圖片
- 7. 百度圖片python爬蟲小程序
- 8. python爬取百度圖片
- 9. Python瀑布流爬蟲-爬取360網站圖片+爬取百度圖片
- 10. Python爬蟲：經過關鍵字爬取百度圖片
- 更多相關文章...
- • Markdown 圖片 - Markdown 教程
- • XSL 語言 - XSLT 教程
- • Kotlin學習（一）基本語法
- • 算法總結-廣度優先算法
相關標籤/搜索
每日一句
-
每一个你不满意的现在，都有一个你没有努力的曾经。
最新文章
- 1. 跳槽面試的幾個實用小技巧，不妨看看！
- 2. Mac實用技巧 |如何使用Mac系統中自帶的預覽工具將圖片變成黑白色?
- 3. Mac實用技巧 |如何使用Mac系統中自帶的預覽工具將圖片變成黑白色?
- 4. 如何使用Mac系統中自帶的預覽工具將圖片變成黑白色?
- 5. Mac OS非兼容Windows軟件運行解決方案——「以VMware & Microsoft Access爲例「
- 6. 封裝 pyinstaller -F -i b.ico excel.py
- 7. 數據庫作業三ER圖待完善
- 8. nvm安裝使用低版本node.js(非命令安裝)
- 9. 如何快速轉換圖片格式
- 10. 將表格內容分條轉換爲若干文檔
歡迎關注本站公眾號,獲取更多信息
相關文章
- 1. 百度圖片爬蟲-python版-如何爬取百度圖片?
- 2. python 爬蟲爬取百度圖片
- 3. 【python爬蟲】爬取百度圖片
- 4. 百度圖片小爬蟲
- 5. 百度圖片爬蟲
- 6. PHP爬蟲百度圖片
- 7. 百度圖片python爬蟲小程序
- 8. python爬取百度圖片
- 9. Python瀑布流爬蟲-爬取360網站圖片+爬取百度圖片
- 10. Python爬蟲：經過關鍵字爬取百度圖片