#encoding:utf-8
import urllib
import urllib.request
from lxml import etree
class Spider(object):
def __init__(self):
self.tiebaName="校花"
self.beginPage=1
self.endPage=3
self.url="http://tieba.baidu.com/f?"
self.ua_header = {"User-Agent" : "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1 Trident/5.0;"}
self.fileName=1
#构造url
def tiebaSpider(self):
for page in range(self.beginPage,self.endPage+1):
pn=(page-1)*50
wo={'pn':pn,'kw':self.tiebaName}
word=urllib.parse.urlencode(wo)
myurl=self.url+word
self.loadPage(myurl)
#爬取页面内容
def loadPage(self,url):
req=urllib.request.Request(url,headers=self.ua_header)
data=urllib.request.urlopen(req).read()
html=etree.HTML(data)
links=html.xpath('//div[@class="threadlist_lz clearfix"]/div/a/@href')
for link in links:
link="http://tieba.baidu.com"+link
self.loadImages(link)
#爬取帖子详情页，获得图片的链接
def loadImages(self,link):
req=urllib.request.Request(link,headers=self.ua_header)
data=urllib.request.urlopen(req).read()
html=etree.HTML(data)
links=html.xpath('//img[@class="BDE_Image"]/@src')
for imageslink in links:
self.writeImages(imageslink)
#通过图片所在链接，爬取图片并保存图片到本地
def writeImages(self,imagesLink)：
function(){ //技术指标 http://www.fx61.com/faq/muniu/437.html
print("正在存储图片：",self.fileName,"....")
image=urllib.request.urlopen(imagesLink).read()
#保存图片到本地
file=open(r"C:\file\img\\"+str(self.fileName)+".jpg","wb")
file.write(image)
file.close()
self.fileName+=1
if __name__ == '__main__':
mySpider=Spider()
mySpider.tiebaSpider()