lpshappy3
22Keep going3
采纳率0%
2019-05-04 13:00

!!急求 为什么爬取结果不能写到文档 爬取的结果只有一条记录?

想要爬取股票信息,新手不熟悉,希望能有大神给出解决方法!!急

# -*- coding: utf-8 -*-
import requests
from bs4 import BeautifulSoup
import re
import traceback
import bs4  
import sys
import time
reload(sys)
sys.setdefaultencoding('utf-8')


def getHTMLText(url,code='utf-8'):
    try:
        r = requests.get(url)
        r.raise_for_status()
        r.encoding = code
        return r.text
    except:
        return ""

def SetFileName():
 dirname = time.strftime ( '%Y%m%d' , time.localtime ( time.time () ) ) #获取当前日期
 dirname += 'sh'
 return dirname


def getStockList(lst,stockURL):
    # html = getHTMLText(stockURL,'GB2312')
    html = getHTMLText(stockURL, 'utf-8')
    soup = BeautifulSoup(html,'html.parser')
    a = soup.find_all('a')
    for i in a:
        try:
            href = i.attrs['href']
            lst.append(re.findall(r"[s][hz]\d{6}",href)[0])
        except:
            continue


def getStockInfo(lst,stockURL,fpath):
    count = 0
    for stock in lst:
        url = stockURL + stock + ".html"
        html = getHTMLText(url)
        try:
            if html == "":
                continue
            infoDict = {}
            soup = BeautifulSoup(html,'html.parser')
            stockInfo = soup.find('div',attrs={'class':'stock-bets'})
            if isinstance(stockInfo,bs4.element.Tag):  
                name = stockInfo.find_all(attrs={'class':'bets-name'})[0]
                infoDict.update({'股票名称': name.text.split()[0]})
                keyList = stockInfo.find_all('dt')
                valueList = stockInfo.find_all('dd')
                for i in range(len(keyList)):
                    key = keyList[i].text
                    val = valueList[i].text
                    infoDict[key] = val
                    with open(r'D:lps.txt', 'w') as f:
                        # f.write(str(infoDict) + '\n')
                        # print(str(infoDict) + '\n')

                         f.write(key + str(val))
                         print(key +str(val))

                    f.close()
        except:
            count = count + 1

            traceback.print_exc()
            continue



def main():
    stock_list_url = 'http://quote.eastmoney.com/stocklist.html'
    stock_info_url = 'https://gupiao.baidu.com/stock/'
    output_file = 'D://lps.txt'
    slist = []
    getStockList(slist,stock_list_url)
    getStockInfo(slist,stock_info_url,output_file)


main()


结果如图
图片说明

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1条回答

  • weixin_45013255 鲁远泰 - 易景通 - 15974133853 2年前

    使用scrapy框架爬取网页数据时,分明已经获取到数据了,日志也确认了这点那问题肯定是出在管道上了,可是文件被创建

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