python爬取开源中国top10动弹

最新推荐文章于 2025-09-04 16:18:04 发布

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最新推荐文章于 2025-09-04 16:18:04 发布

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CC 4.0 BY-SA版权

文章标签：爬虫 python 数据库

原文链接：https://my.oschina.net/WWWW23223/blog/870839

本文介绍了一个使用Python爬取开源中国(OSC)网站上热门动弹及其评论的程序。该程序利用BeautifulSoup进行HTML解析，并通过urllib请求网页内容。此外，还实现了将抓取的数据保存到MySQL数据库及Excel文件的功能。

2019独角兽企业重金招聘Python工程师标准>>>

最近在学python,于是试试爬取osc热门动弹。程序爬取热门动弹及所有动弹评论。

from bs4 import BeautifulSoup
import urllib
import xlwt
import pymysql.cursors
# pls call me scott
# 亦真亦假、亦长亦短、亦喜亦悲


# 数据库连接
def getConnection():
    con = pymysql.connect(host='localhost',
                          user='******',
                          password='******',
                          db='pythondb',
                          charset='utf-8',
                          cursorclass=pymysql.cursors.DictCursor)
    return con

# 数据持久化 TODO
def insertData():
    try:
        con = getConnection();
        with con.cursor() as cursor:
            sql = 'insert into test(id,name)'
            cursor.execute(sql,(1,'scott'))
            cursor.close()
        con.commit()
    finally:
        con.close()

# 获取html
def getHtml(url):
     html=""
     try:
         data=None
         headers = {'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36'}
         req=urllib.request.Request(url,data,headers)
         response = urllib.request.urlopen(req)
         html = response.read()
         html = html.decode('UTF-8')
         #print(html)
     except Exception as e:
         print(e)
     return html

#获取相关内容
def getData(baseurl):
    datalist=[]
    html=getHtml(baseurl)
    soup = BeautifulSoup(html)

    hottweet = soup.find('article',{'class':'hot-tweet'})
    for tweet in hottweet.find_all('div',{'class':'box tweetitem'}):
        data=[]
        name = tweet.find('a',{'class':'ti-uname'}).getText()
        content = tweet.find('span',{'class':'inner-content'}).getText()
        href = tweet.find('a',{'title':'查看详情'}).get('href')

        detailhtml = getHtml(href)
        detailsoup = BeautifulSoup(detailhtml)
        reply_list = detailsoup.find('div',{'class':'tweet_reply_list'})

        data.append(name)
        data.append(content)

        # 第一页所有评论
        for reply in reply_list.find_all('div',{'class':'box tweet-reply-item'}):
            ruser = reply.find('a',{'class':'replay-user'}).getText()
            rcontent = reply.find('div',{'class':'sc sc-text wrap replay-content'}).getText()
            #print(ruser+":"+rcontent)
            data.append(ruser)
            data.append(rcontent)
        # 是否有下一页
        pageli = reply_list.find_all('li')
        if(pageli!=None):
            for li in pageli:
                # print(li.getText())
                if(li.getText().isdigit()):
                    page = getHtml(href+'?p='+str(int(li.getText())+1))
                    pagesoup = BeautifulSoup(page)
                    reply_list = pagesoup.find('div',{'class':'tweet_reply_list'})
                    for reply in reply_list.find_all('div',{'class':'box tweet-reply-item'}):
                        ruser = reply.find('a',{'class':'replay-user'}).getText()
                        rcontent = reply.find('div',{'class':'sc sc-text wrap replay-content'}).getText()
                        #print(ruser+":"+rcontent)
                        data.append(ruser)
                        data.append(rcontent)
        datalist.append(data)
    return datalist


#将数据写入excel中 datalist 数据格式 list[list1,list2...]  listX[0]是动弹作者,listX[1]是动弹内容，后面的listX[X]则是评论作者,listX+1[X+1]则是评论内容
def saveData(datalist,path):
    if len(datalist)!=0:
        book=xlwt.Workbook(encoding='utf-8',style_compression=0)
        sheet=book.add_sheet('top10',cell_overwrite_ok=True)
        col=('作者','内容')
        index = 1
        for i in range(0,2):
            sheet.write(0,i,col[i])#列名
        for i in range(0,len(datalist)):#10
            data=datalist[i]
            for j in range(0,len(data)):
                if(j%2==0):
                    columnIndex=0
                    index+=1
                else:
                    columnIndex=1
                sheet.write(index,columnIndex,data[j])#数据
            index+=5
        book.save(path)#保存

def main():
    baseurl='https://www.oschina.net/tweets'
    datalist=getData(baseurl)
    path=u'TOP10动弹.xls'
    saveData(datalist,path)
    # insertData(datalist)

main()

转载于:https://my.oschina.net/WWWW23223/blog/870839