爬取所有校园新闻

  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
    import re
    from bs4 import BeautifulSoup
    from datetime import datetime
    news='http://news.gzcc.cn/html/xiaoyuanxinwen/'
    res=requests.get(news)
    res.encoding='utf-8'
    soup=BeautifulSoup(res.text,'html.parser')
    
    def getdetail(url):
        resd=requests.get(url)
        resd.encoding='utf-8'
        soup=BeautifulSoup(resd.text,'html.parser')
        return(soup.select('.show-content')[0].text)
    def getclick(newsurl):
        id=re.match('http://news.gzcc.cn/html/2017/xiaoyuanxinwen_(.*).html',newsurl).groups()[0].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)
        
    for news in soup.select ('li'):
        if len(news.select('.news-list-title'))>0:
            title=news.select('.news-list-title')[0].text #标题
            url=news.select('a')[0]['href'] #链接
            time=(news.select('.news-list-info')[0].contents[0].text) #时间
            dt=datetime.strptime(time,'%Y-%m-%d')
            where=(news.select('.news-list-info')[0].contents[1].text) #来源
            resd=requests.get(url)
            resd.encoding='utf-8'
            soup=BeautifulSoup(resd.text,'html.parser')
            detail=getdetail(url) #详情
            click=getclick(url)#点击次数
            print(title,url,time,dt,where,click)
    
            
            

     

  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
    import re
    from bs4 import BeautifulSoup
    from datetime import datetime
    news='http://news.gzcc.cn/html/xiaoyuanxinwen/'
    res=requests.get(news)
    res.encoding='utf-8'
    soup=BeautifulSoup(res.text,'html.parser')
    
    def getdetail(url):
        resd=requests.get(url)
        resd.encoding='utf-8'
        soup=BeautifulSoup(resd.text,'html.parser')
        return(soup.select('.show-content')[0].text)
    def getclick(newsurl):
        id=re.search('_(.*).html',newsurl).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)
    def getonepage(listurl):
        resd=requests.get(listurl)
        resd.encoding='utf-8'
        soup=BeautifulSoup(resd.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
                a=news.select('a')[0]['href'] #链接
                time=(news.select('.news-list-info')[0].contents[0].text) #时间
                dt=datetime.strptime(time,'%Y-%m-%d')
                where=(news.select('.news-list-info')[0].contents[1].text) #来源
                detail=getdetail(a) #详情
                click=getclick(a)#点击次数
                print(title,time,dt,a,where,click)
    getonepage('http://news.gzcc.cn/html/xiaoyuanxinwen/index.html')
    res=requests.get('http://news.gzcc.cn/html/xiaoyuanxinwen/')
    res.encoding='utf-8'
    soup=BeautifulSoup(res.text,'html.parser')
    page=int(soup.select('.a1')[0].text.rstrip(''))//10+1                 
    for i in range(2,page):
        gzccurl='http://news.gzcc.cn/html/xiaoyuanxinwen/{}.html'.format(i)
        getonepage(gzccurl)
            

posted on 2017-10-12 19:01  ohh咔咔咔  阅读(167)  评论(0编辑  收藏  举报

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