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爬取所有校园新闻

时间:2017-10-12 13:12:35      阅读:161      评论:0      收藏:0      [点我收藏+]

标签:结果   odi   detail   爬取   rip   strip   enc   format   soup   

1、获取单条新闻的#标题#链接#时间#来源#内容 #点击次数,并包装成一个函数。

import requests
from bs4 import BeautifulSoup
import re

url_main="http://news.gzcc.cn/html/xiaoyuanxinwen/"
res = requests.get(url_main)
res.encoding = utf-8

soup = BeautifulSoup(res.text,html.parser)
li = soup.select(li)

def gethits(url_1):
    li_id =re.search(_.*/(.*).html,url_1).groups(0)[0]
    hits = requests.get(http://oa.gzcc.cn/api.php?op=count&id={}&modelid=80.format(li_id)).text.split(.)[-1].rstrip(‘‘‘‘);‘‘‘).lstrip(‘‘‘‘html(‘‘‘)
    return hits

def getpageinfo(label):
    for title_list in label:
        if len(title_list.select(.news-list-title))>0:
            href = title_list.select(a)[0][href]
            title = title_list.select(.news-list-title)[0].text
            time = title_list.select(span)[0].text
            info = title_list.select(span)[1].text

            res_list = requests.get(href)
            res_list.encoding = utf-8
            soup_list = BeautifulSoup(res_list.text,html.parser)
            text_list = soup_list.select(.show-content)[0].text

            hits_list = gethits(href)

            print(时间:,time,\n标题:,title,\n链接:,href,\n来源:,info,\n点击次数:,hits_list,\n)
            print(正文:,text_list)
            break

getpageinfo(li)

结果:

技术分享

2、获取一个新闻列表页的所有新闻的上述详情,并包装成一个函数。

import requests
from bs4 import BeautifulSoup
import re

url_main="http://news.gzcc.cn/html/xiaoyuanxinwen/"
res = requests.get(url_main)
res.encoding = utf-8

soup = BeautifulSoup(res.text,html.parser)
li = soup.select(li)

def gethits(url_1):
    li_id =re.search(_.*/(.*).html,url_1).groups(0)[0]
    hits = requests.get(http://oa.gzcc.cn/api.php?op=count&id={}&modelid=80.format(li_id)).text.split(.)[-1].rstrip(‘‘‘‘);‘‘‘).lstrip(‘‘‘‘html(‘‘‘)
    return hits

def getpageinfo(label):
    for title_list in label:
        if len(title_list.select(.news-list-title))>0:
            href = title_list.select(a)[0][href]
            title = title_list.select(.news-list-title)[0].text
            time = title_list.select(span)[0].text
            info = title_list.select(span)[1].text

            res_list = requests.get(href)
            res_list.encoding = utf-8
            soup_list = BeautifulSoup(res_list.text,html.parser)
            text_list = soup_list.select(.show-content)[0].text

            hits_list = gethits(href)

            print(时间:,time,\n标题:,title,\n链接:,href,\n来源:,info,\n点击次数:,hits_list,\n)
            print(正文:,text_list)
            
getpageinfo(li)

结果:

技术分享

3、获取所有新闻列表页的网址,调用上述函数

import requests
from bs4 import BeautifulSoup
import re

url_main="http://news.gzcc.cn/html/xiaoyuanxinwen/"
res = requests.get(url_main)
res.encoding = utf-8

soup = BeautifulSoup(res.text,html.parser)
li = soup.select(li)

def gethits(url_1):
    li_id =re.search(_.*/(.*).html,url_1).groups(0)[0]
    hits = requests.get(http://oa.gzcc.cn/api.php?op=count&id={}&modelid=80.format(li_id)).text.split(.)[-1].rstrip(‘‘‘‘);‘‘‘).lstrip(‘‘‘‘html(‘‘‘)
    return hits

def getpageinfo(label):
    for title_list in label:
        if len(title_list.select(.news-list-title))>0:
            href = title_list.select(a)[0][href]
            title = title_list.select(.news-list-title)[0].text
            time = title_list.select(span)[0].text
            info = title_list.select(span)[1].text

            res_list = requests.get(href)
            res_list.encoding = utf-8
            soup_list = BeautifulSoup(res_list.text,html.parser)
            text_list = soup_list.select(.show-content)[0].text

            hits_list = gethits(href)


getpageinfo(li)

pages = int(soup.select(.a1)[0].text.rstrip())//10+1

for i in range(2,pages+1):
    url_page = "http://news.gzcc.cn/html/xiaoyuanxinwen/{}.html".format(i)
    
    res_page = requests.get(url_page)
    res_page.encoding = utf-8

    soup_page = BeautifulSoup(res_page.text,html.parser)
    list_page = soup.select(li)

    getpageinfo(list_page)
    print(url_page)

结果:

技术分享

4、完成所有校园新闻的爬取工作。

import requests
import re
from bs4 import BeautifulSoup
url=http://news.gzcc.cn/html/xiaoyuanxinwen/
res=requests.get(url)
res.encoding=utf-8
soup=BeautifulSoup(res.text,html.parser)

#获取点击次数
def getclick(newurl):
    id=re.search(_(.*).html,newurl).group(1).split(/)[1]
    clickurl=http://oa.gzcc.cn/api.php?op=count&id={}&modelid=80.format(id)
    click=int(requests.get(clickurl).text.split(".")[-1].lstrip("html(‘").rstrip("‘);"))
    return click

#获取网页内容
def getonpages(listurl):
    res=requests.get(listurl)
    res.encoding=utf-8
    soup=BeautifulSoup(res.text,html.parser)
    
    for news in soup.select(li):
        if len(news.select(.news-list-title))>0:
            title=news.select(.news-list-title)[0].text #标题
            time=news.select(.news-list-info)[0].contents[0].text#时间
            url1=news.select(a)[0][href] #链接
            source=news.select(.news-list-info)[0].contents[1].text#来源
            description=news.select(.news-list-description)[0].text #内容

            resd=requests.get(url1)
            resd.encoding=utf-8
            soupd=BeautifulSoup(resd.text,html.parser)
            detail=soupd.select(.show-content)[0].text

            click=getclick(url1) #调用点击次数
            print(title,url1,click)
            
count=int(soup.select(.a1)[0].text.rstrip(""))
pages=count//10+1
for i in range(2,4):
    pagesurl="http://news.gzcc.cn/html/xiaoyuanxinwen/{}.html".format(i)
    getonpages(pagesurl)

结果:

技术分享

 

爬取所有校园新闻

标签:结果   odi   detail   爬取   rip   strip   enc   format   soup   

原文地址:http://www.cnblogs.com/xieruikai/p/7655132.html

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