葡京赌场网址网站域名加WWW与无加以WWW区别

  不知情站长童鞋们发出无起留意到,很多网站于开拓时,地址栏里的域名有的带有“www.”,而部分网站前则尚未拉动“www.”这之中起什么区别为?作为一个初站长,我哟还无清楚,就以百度上搜了一样只,也尚未找到一个有权威性的答案,都是各抒己见、人云亦云。
当然,如果您在的话,也绝非什么最好的熏陶,反正百度也用了网站以及内容。但是本人者人口好奇心比较高,什么事非解决就觉得不甘心,于是我不怕FQ上海外的有些尊贵网站,寻找答案。

打京东网站抓取_007

`连接上篇内容 于京东网站抓取_006

团队成为列表的样式

if __name__ == '__main__':
    bose_info = get_content_from_jd('Bose', '1', '3')  
    bose_content = BeautifulSoup(bose_info)
    bose_div = bose_content.find_all('div', class_ = 'lh-wrap') 

    bose_id = [i.strong['class'][0] for i in bose_div]

    info_results = [] #初始化一个空的列表用来存放抓取的商品信息

    for item in bose_div:
        data = {} #初始化一个空的字典用来存放信息
        data['url'] = item.find('div', class_ = 'p-img').a['href']#商品链接
        data['img'] = item.find('img')['data-lazyload']#商品图片
        data['title'] = item.find('div', class_ = 'p-name').get_text().strip()#商品标题
        data['id'] = item.find('div', class_ = 'p-price').strong['class'][0]#商品id
        info_results.append(data)

    print info_results[0] #通过下标可查询任意一条商品信息

回去内容

{
'url': 'http://item.jd.com/1150767.html', 
'id': 'J_1150767', 
'img': 'http://img12.360buyimg.com/n7/jfs/t160/263/2138317114/91577/2ad0b9a5/53c64152Nfa21b93d.jpg', 
'title': u'Bose SoundLink Mini\u84dd\u7259\u626c\u58f0\u5668 \u84dd\u7259\u97f3\u7bb1'
}

商品价位之抓取
京东网站价格通过GET命令获取,通过chrome调试工具先取得价格网址

Json.PNG

http://p.3.cn/prices/mgets?skuids=J_1150767,J_1225287,J_1150768,J_1237665,J_1439929797,J_1150689,J_1225340,J_1264417,J_1153768,J_1253203,J_1150696,J_1150765,J_1237667,J_1150699,J_1253201,J_1253221,J_1253226,J_1253232,J_1237663,J_1237666,J_1253123,J_1253126,J_1222097,J_1150701,J_1150735,J_1230490,J_1217252,J_1237670,J_1255249,J_1150760&area=1_72_2799_0&type=1
是网址由三单参数组成skuid,area,type

构建函数获取商品价位
函数接受所有商品ID,之后构建而达到链接,获取商品价位

import json
def get_price(all_id):
  params = {

            'skuids':','.join(all_id),
            'area':'1_72_2799_0',
            'type':'1'
  }
  html_price = urllib.urlencode(params)
  html_price_content = urllib.urlopen('http://p.3.cn/prices/mgets?'+html_price)
  price_content = html_price_content.read()
  html_price_content.close()
  return json.loads(price_content)

修改主程序增加商品价位字段

if __name__ == '__main__':
    bose_info = get_content_from_jd('Bose', '1', '3')  
    bose_content = BeautifulSoup(bose_info)
    bose_div = bose_content.find_all('div', class_ = 'lh-wrap') 
    # <strong class="J_1150767"></strong>
    bose_id = [i.strong['class'][0] for i in bose_div]

    bose_price = get_price(bose_id)

    info_results = []

    for item in bose_div:
        data = {}

        data['url'] = item.find('div', class_ = 'p-img').a['href']
        data['img'] = item.find('img')['data-lazyload']
        data['title'] = item.find('div', class_ = 'p-name').get_text().strip()
        data['id'] = item.find('div', class_ = 'p-price').strong['class'][0]
        data['price'] = filter(lambda price: price['id'] == data['id'], bose_price)[0]['p']

        info_results.append(data)
    for i in info_results:
        print json.dumps(i, encoding="gb2312", ensure_ascii=False)

回到结果

{"url": "http://item.jd.com/1150767.html", "price": "1880.00", "id": "J_1150767", "img": "http://img12.360buyimg.com/n7/jfs/t160/263/2138317114/91577/2ad0b9a5/53c64152Nfa21b93d.jpg", "title": "Bose SoundLink Mini蓝牙扬声器 蓝牙音箱"}
{"url": "http://item.jd.com/1225287.html", "price": "2680.00", "id": "J_1225287", "img": "http://img12.360buyimg.com/n7/jfs/t382/299/358410988/102067/28bc7fa/5417ef6eN1a471400.jpg", "title": "Bose QuietComfort25有源消噪耳机-黑色  QC25"}
{"url": "http://item.jd.com/1150768.html", "price": "2600.00", "id": "J_1150768", "img": "http://img13.360buyimg.com/n7/jfs/t208/86/2195379170/121054/373a1635/53c6414cNa684fbeb.jpg", "title": "Bose SoundLink 蓝牙扬声器III 蓝牙音箱"}
{"url": "http://item.jd.com/1237665.html", "price": "999.00", "id": "J_1237665", "img": "http://img10.360buyimg.com/n7/jfs/t340/338/1222059663/138599/83529a01/5434b619Nd24a3d4b.jpg", "title": "Bose SoundLink Colour蓝牙扬声器-红色"}
{"url": "http://item.jd.com/1439929797.html", "price": "138.00", "id": "J_1439929797", "img": "http://img12.360buyimg.com/n7/jfs/t700/310/356730772/324161/83da6250/54a3bc7eNfa25365f.jpg", "title": "山水D11迷你音响便携式插卡收音机老人带mp3音乐播放器外放小音箱 红色"}
{"url": "http://item.jd.com/1150689.html", "price": "1390.00", "id": "J_1150689", "img": "http://img14.360buyimg.com/n7/jfs/t208/317/2213636018/63579/6e4b116f/53c748efN7baca4a7.jpg", "title": "Bose SoundTrue 耳罩式耳机-薄荷黑"}
{"url": "http://item.jd.com/1225340.html", "price": "2680.00", "id": "J_1225340", "img": "http://img10.360buyimg.com/n7/jfs/t223/352/2430825655/67306/a9994f48/5417ef44N0c7a8927.jpg", "title": "Bose QuietComfort25有源消噪耳机-白色  QC25"}
{"url": "http://item.jd.com/1264417.html", "price": "230.00", "id": "J_1264417", "img": "http://img12.360buyimg.com/n7/jfs/t517/72/112548631/56020/8bda8115/544ef80cN9a010b1f.jpg", "title": "Bose SoundLink Mini蓝牙扬声器封套-橙色 蓝牙音箱配件"}
{"url": "http://item.jd.com/1153768.html", "price": "2900.00", "id": "J_1153768", "img": "http://img13.360buyimg.com/n7/jfs/t166/272/2180604273/69161/fb60368e/53c6403dNee2eb466.jpg", "title": "Bose QC3有源消噪耳机"}
{"url": "http://item.jd.com/1253203.html", "price": "860.00", "id": "J_1253203", "img": "http://img13.360buyimg.com/n7/jfs/t322/59/1919666393/48470/e8feae8a/5444db09N9675a5b6.jpg", "title": "Bose SoundTrue 耳塞式耳机-Audio白色"}
{"url": "http://item.jd.com/1150696.html", "price": "1390.00", "id": "J_1150696", "img": "http://img11.360buyimg.com/n7/jfs/t148/316/2168034496/55985/33491bc7/53c748f6N18f6bba2.jpg", "title": "Bose SoundTrue 耳罩式耳机-白色"}
{"url": "http://item.jd.com/1150765.html", "price": "1190.00", "id": "J_1150765", "img": "http://img10.360buyimg.com/n7/jfs/t301/274/605583376/53605/b339d875/541a76b2N5ccb18e3.jpg", "title": "Bose SoundTrue 贴耳式耳机-薄荷绿"}
{"url": "http://item.jd.com/1237667.html", "price": "999.00", "id": "J_1237667", "img": "http://img12.360buyimg.com/n7/jfs/t289/182/1218390339/163662/9fe085a4/5434b621Naedfdec8.jpg", "title": "Bose SoundLink Colour蓝牙扬声器-蓝色"}
{"url": "http://item.jd.com/1150699.html", "price": "1100.00", "id": "J_1150699", "img": "http://img14.360buyimg.com/n7/jfs/t181/31/2177504157/57468/1c4635a/53c748feN97183aa9.jpg", "title": "BOSE FreeStyle耳塞式耳机-靛蓝色"}
{"url": "http://item.jd.com/1253201.html", "price": "860.00", "id": "J_1253201", "img": "http://img11.360buyimg.com/n7/jfs/t346/156/1911266815/54489/7c8e3997/5444db0dNa623d2b8.jpg", "title": "Bose SoundTrue 耳塞式耳机-Audio黑色"}
{"url": "http://item.jd.com/1253221.html", "price": "1100.00", "id": "J_1253221", "img": "http://img11.360buyimg.com/n7/jfs/t289/140/1935678963/56537/582956b2/5444db00N572caa4a.jpg", "title": "Bose SoundTrue 耳塞式耳机-MFI黑色"}
{"url": "http://item.jd.com/1253226.html", "price": "1100.00", "id": "J_1253226", "img": "http://img11.360buyimg.com/n7/jfs/t277/71/1930074315/50436/5acf672a/5444dafcN0c4791d5.jpg", "title": "Bose SoundTrue 耳塞式耳机-MFI白色"}
{"url": "http://item.jd.com/1253232.html", "price": "1100.00", "id": "J_1253232", "img": "http://img12.360buyimg.com/n7/jfs/t328/196/1930225986/61739/bbec7731/5444daf9Nddbecfb6.jpg", "title": "Bose SoundTrue 耳塞式耳机-MFI红色"}
{"url": "http://item.jd.com/1237663.html", "price": "999.00", "id": "J_1237663", "img": "http://img13.360buyimg.com/n7/jfs/t319/242/1280480196/152009/5fe7709a/5434b615Nbcfa5d7c.jpg", "title": "Bose SoundLink Colour蓝牙扬声器-白色"}
{"url": "http://item.jd.com/1237666.html", "price": "999.00", "id": "J_1237666", "img": "http://img11.360buyimg.com/n7/jfs/t304/242/1241674581/146981/c06eaa1f/5434b61dN9c7696b3.jpg", "title": "Bose SoundLink Colour蓝牙扬声器-黑色"}
{"url": "http://item.jd.com/1253123.html", "price": "1280.00", "id": "J_1253123", "img": "http://img13.360buyimg.com/n7/jfs/t292/198/1897986217/53974/f562c7e1/5444db17Ne54d0602.jpg", "title": "Bose SoundSport 耳塞式运动耳机-MFI蓝色"}
{"url": "http://item.jd.com/1253126.html", "price": "1280.00", "id": "J_1253126", "img": "http://img11.360buyimg.com/n7/jfs/t292/189/1898519967/51313/51a8a428/5444db10Nf3ff2fd3.jpg", "title": "Bose SoundSport 耳塞式运动耳机-MFI绿色"}
{"url": "http://item.jd.com/1222097.html", "price": "1300.00", "id": "J_1222097", "img": "http://img12.360buyimg.com/n7/jfs/t361/202/251727987/123343/f26572be/5412c577N18d44163.jpg", "title": "Bose SoundDock XT 扬声器-黄色"}
{"url": "http://item.jd.com/1150701.html", "price": "1100.00", "id": "J_1150701", "img": "http://img11.360buyimg.com/n7/jfs/t190/337/2171347628/71312/aaee683/53c74901N1f1f18c6.jpg", "title": "BOSE FreeStyle耳塞式耳机-冰蓝色"}
{"url": "http://item.jd.com/1150735.html", "price": "2100.00", "id": "J_1150735", "img": "http://img10.360buyimg.com/n7/jfs/t145/287/2185253825/90804/2249f972/53c748dfN2ddf2080.jpg", "title": "Bose AE2w蓝牙 音乐耳机"}
{"url": "http://item.jd.com/1230490.html", "price": "3900.00", "id": "J_1230490", "img": "http://img10.360buyimg.com/n7/jfs/t271/122/797716279/40566/938f086d/54250485Nd234341a.jpg", "title": "Bose Solo 15 电视音响"}
{"url": "http://item.jd.com/1217252.html", "price": "280.00", "id": "J_1217252", "img": "http://img12.360buyimg.com/n7/jfs/t391/286/362695776/68919/aa56f3ad/5417d812N5f28a56b.jpg", "title": "Bose SoundLink 蓝牙扬声器III封套-灰色"}
{"url": "http://item.jd.com/1237670.html", "price": "200.00", "id": "J_1237670", "img": "http://img10.360buyimg.com/n7/jfs/t289/169/1495591883/259103/d0ae681e/543ceff6N239ff5f6.jpg", "title": "Bose SoundLink Colour蓝牙扬声器 便携包"}
{"url": "http://item.jd.com/1255249.html", "price": "988.00", "id": "J_1255249", "img": "http://img14.360buyimg.com/n7/jfs/t280/299/1915466812/56681/67fa4c6b/5444dae9Na3c39a8c.jpg", "title": "Bose SoundTrue 耳塞式耳机-SMSG黑色"}
{"url": "http://item.jd.com/1150760.html", "price": "1190.00", "id": "J_1150760", "img": "http://img10.360buyimg.com/n7/jfs/t172/238/2201679276/52515/cab70722/53c748baN815e7a20.jpg", "title": "Bose SoundTrue 贴耳式耳机-白色"}

  我们的网站同开始另起炉灶,www.的域名就是得动用。像我们的主机商们,他们的后台可装解析代转,也得实现非加以“www.”的域名,直达网站,但迅即是匪得法的。因为就是空间商设置了代表转那呢是打www.上再次代表转至出“www.”的域名商。
那怎么才能够促成科学的“根域”呢?这即要求我们怎么用《搜索引擎优化“WWW”修复:htaccess和301再度定向》了,有关《搜索引擎优化“WWW”修复:htaccess和301重复定向》我将以产一样首文章吧大家教。

正文来源李新的博客,转载请注明出处:http://ilixin.net/987.html

  是的,当然,这包括www.ilixin.net,因为她是一个子域名!
现在咱们认识及及时一点,加WWW与不加以WWW的差。那么一旦有人如果与而的网站互链,你当知道怎么链接了吧!
这就是要求以301再定向,其实可以反映了无可非议的地址,在浏览器的地址栏,使的再爱,他们只要链接到您的网站经常,他们见面挑适当的本子。这是盖在此之前您的Web服务器发送页面的口访问您的网站,知道送哪个版本的。有人得到其的缪事件,一个301更定向将她们链接到的情节告诉搜索引擎,实际上是以另外的职务,它应有被索引。
像卢松松这样的站长为什么用非加以“www.”的域名也?像他的网站,权重都落得6了,这在举国上下的私有网站的话呢是百年不遇的。而异又是怎么形成的啊?其中一个由就之所以非加“www.”的域名,避免散权重。

  换句话说,不加“www.”的域名是主网站,加上“www.”的域名,就相当给是一个二级域名,从优化的角度来讲,加上“www.”就见面分流主网站的权重。
但是说话又说回去,加上“www.”比较相符我们国人的惯,分散权重但是平等不怎么部分的,毕竟权重分来分去还是细分以您的网站上。最重大之尽管是差不多举行有大质量之反链。不过因自家的洞察,向自身于是的斯wordpress博客系统的官网,知名站长卢松松的网站,他们的网站上的域名都尚未带来“www.”。所以自己个人建议,还是用不带“www.”的域名比较好。
注:即使少单版本加www或非加www显示相同之情(网页,视频,图像等),以为问题虽缓解了。我想告知大家,这是广大的web主机直接使用的DNS(域名服务)到和一个地方。但301重定向会告知搜索引擎是哪位版本的始末才是大的。
重要之是一旦理解该域名(例如我的域名:ilixin.net)是“根域”。像about.ilixin.net、gossip.ilixin.net、memory.ilixin.net
诸如此类的且是代表本人的一个子域名。

  借助谷歌翻译,终于查找着答案了。下面就为李新为大家总结一下吧:
看似无绝在意的一个小节,但是对找引擎来说,却从至了极其重要的意图。但是对大多数站长以来,他们都忽略了,总认为加个“www.”,网站亮正规一些,往往无加“www.”给丁之发就如是匪正经的网站一律。但是我要告大家之虽是,如果你实在处理好这网址,这对而网站的SEO来说是一个巨大的前行。
对于百度和谷歌这样的搜引擎来说,先拿自身之网站老说吧,在寻觅引擎地址上输入ilixin.net和www.ilixin.net若都得以抵达我的网站(本站设置自动跳转),而且内容是如出一辙的。这并无意味着搜索引擎看到人类同之方,对于搜索引擎来说,ilixin.net和www.ilixin.net实则是少数只站点,而立即有限独域名指向都是你的网站,所以情对百度和谷歌的蜘蛛来说就是是再次的始末,就时有发生或会见误导搜索引擎,导致搜索引擎的蜘蛛不交公的网站及摸索。