# -*- coding: utf-8 -*-"""根據京東url地址，獲取商品價格京東請求處理過程，先顯示html頁面，然后通過ajax get請求獲取相應的商品價格 1.商品的具體數據在html中的格式，如下(示例)# product: {#     skuid: 1310118868,#     name: '/u9999/u5f71/u77ed/u88d9/u4e24/u4ef6/u5957/u88c5/u5973/u0032/u0030/u0031/u0034/u51ac/u88c5/u65b0/u6b3e/u97e9/u7248/u957f/u8896/u0054/u6064/u4e0a/u8863/u8377/u53f6/u8fb9/u534a/u8eab/u88d9/u6f6e/u0020/u85cf/u9752/u0020/u004d',#     skuidkey:'7781F505B71CE37A3AFBADA119D3587F',#     href: 'http://item.jd.com/1310118868.html',#     src: 'jfs/t385/197/414081450/336886/3070537b/541be890N2995990c.jpg',#     cat: [1315,1343,1355],#     brand: 18247,#     nBrand: 18247,#     tips: false,#     type: 2,#     venderId:38824,#     shopId:'36786',#     TJ:'0',#     specialAttrs:["is7ToReturn-1"],#     videoPath:'',#     HM:'0'#   } 2.ajax請求代碼如下：# // 獲得數字價格# var getPriceNum = function(skus, $wrap, perfix, callback) {#   skus = typeof skus === 'string' ? [skus]: skus;#   $wrap = $wrap || $('body');#   perfix = perfix || 'J-p-';#   $.ajax({#     url: 'http://p.3.cn/prices/mgets?skuIds=J_' + skus.join(',J_') + '&type=1',#     dataType: 'jsonp',#     success: function (r) {#       if (!r && !r.length) {#         return false;#       }#       for (var i = 0; i < r.length; i++) {#         var sku = r[i].id.replace('J_', '');#         var price = parseFloat(r[i].p, 10);##         if (price > 0) {#           $wrap.find('.'+ perfix + sku).html('￥' + r[i].p + '');#         } else {#           $wrap.find('.'+ perfix + sku).html('暫無報價');#         }##         if ( typeof callback === 'function' ) {#           callback(sku, price, r);#         }#       }#     }#   });# };"""import urllibimport jsonimport re  class JdPrice(object):  """  對獲取京東商品價格進行簡單封裝  """  def __init__(self, url):    self.url = url    self._response = urllib.urlopen(self.url)    self.html = self._response.read()   def get_product(self):    """    獲取html中，商品的描述(未對數據進行詳細處理，粗略的返回str類型)    :return:    """    product_re = re.compile(r'compatible: true,(.*?)};', re.S)    product_info = re.findall(product_re, self.html)[0]    return product_info   def get_product_skuid(self):    """    通過獲取的商品信息，獲取商品的skuid    :return:    """    product_info = self.get_product()    skuid_re = re.compile(r'skuid: (.*?),')    skuid = re.findall(skuid_re, product_info)[0]    return skuid   def get_product_name(self):    pass   def get_product_price(self):    """    根據商品的skuid信息，請求獲得商品price    :return:    """    price = None    skuid = self.get_product_skuid()    url = 'http://p.3.cn/prices/mgets?skuIds=J_' + skuid + '&type=1'    price_json = json.load(urllib.urlopen(url))[0]    if price_json['p']:      price = price_json['p']    return price  # 測試代碼if __name__ == '__main__':  url = 'http://item.jd.com/1310118868.html'  url = 'http://item.jd.com/1044773.html'  jp = JdPrice(url)  print jp.get_product_price()  # htm.decode('gb2312', 'ignore').encode('utf-8')# f = open('jjs.html', 'w')# f.write(htm)# f.close()

fromcreepyimportCrawlerfromBeautifulSoupimportBeautifulSoupimporturllib2importjsonclassMyCrawler(Crawler):defprocess_document(self,doc):ifdoc.status==200:print[%d]%s%(doc.status,doc.url)try:soup=BeautifulSoup(doc.text.decode(gb18030).encode(utf-8))exceptExceptionase:printesoup=BeautifulSoup(doc.text)printsoup.find(id="product-intro").div.h1.texturl_id=urllib2.unquote(doc.url).decode(utf8).split(/)[-1].split(.)[0]f=urllib2.urlopen(http://p.3.cn/prices/get?skuid=J_+url_id,timeout=5)price=json.loads(f.read())f.close()printprice[0][p]else:passcrawler=MyCrawler()crawler.set_follow_mode(Crawler.F_SAME_HOST)crawler.set_concurrency_level(16)crawler.add_url_filter(.(jpg|jpeg|gif|png|js|css|swf)$)crawler.crawl(http://item.jd.com/982040.html)