# -*- coding: utf-8 -*-import scrapyfrom scrapy import Requestfrom scrapy.spiders import Spiderfrom scrapy_splash import SplashRequestfrom scrapy_splash import SplashMiddlewarefrom scrapy.http import Request, HtmlResponsefrom scrapy.selector import Selectorfrom scrapy_splash import SplashRequestfrom splash_test.items import SplashTestItemimport IniFileimport sysimport osimport reimport timereload(sys)sys.setdefaultencoding(‘utf-8‘)# sys.stdout = open(‘output.txt‘, ‘w‘)class zndsSpider(Spider):    name = ‘znds‘    configfile = os.path.join(os.getcwd(), ‘splash_test\spiders\setting.conf‘)    cf = IniFile.ConfigFile(configfile)    information_wordlist = cf.GetValue("section", "information_keywords").split(‘;‘)    websearch_urls = cf.GetValue("znds", "websearchurl").split(‘;‘)    start_urls = []    for word in websearch_urls:        start_urls.append(word)    # request需要封装成SplashRequest    def start_requests(self):        for url in self.start_urls:            yield SplashRequest(url                                , self.parse                                , args={‘wait‘: ‘2‘}                                )    def Comapre_to_days(self,leftdate, rightdate):        ‘‘‘        比较连个字符串日期，左边日期大于右边日期多少天        :param leftdate: 格式：2017-04-15        :param rightdate: 格式：2017-04-15        :return: 天数        ‘‘‘        l_time = time.mktime(time.strptime(leftdate, ‘%Y-%m-%d‘))        r_time = time.mktime(time.strptime(rightdate, ‘%Y-%m-%d‘))        result = int(l_time - r_time) / 86400        return result    def date_isValid(self, strDateText):        ‘‘‘        判断日期时间字符串是否合法：如果给定时间大于当前时间是合法，或者说当前时间给定的范围内        :param strDateText: 四种格式 ‘2小时前‘; ‘2天前‘ ; ‘昨天‘ ;‘2017.2.12 ‘        :return: True:合法；False:不合法        ‘‘‘        currentDate = time.strftime(‘%Y-%m-%d‘)        datePattern = re.compile(r‘\d{4}-\d{1,2}-\d{1,2}‘)        strDate = re.findall(datePattern, strDateText)        if len(strDate) == 1:            if self.Comapre_to_days(currentDate,strDate[0])==0:                return True,currentDate        return False, ‘‘    def parse(self, response):        site = Selector(response)        # keyword = response.meta[‘keyword‘]        sels = site.xpath(‘//div[@class="listl list2"]/ul/li‘)        for sel in sels:            titles = sel.xpath(‘.//h3/a/text()‘)            if len(titles)>0:                title = str(titles[0].extract())                strdate = str(sel.xpath(‘.//span/text()‘).extract())                flag,date =self.date_isValid(strdate)                if flag:                    url = ‘http://news.znds.com‘ + str(sel.xpath(‘.//h3/a/@href‘)[0].extract())                    for keyword in self.information_wordlist:                        if title.find(keyword)>-1:                            url = ‘http://news.znds.com‘+ str(sel.xpath(‘.//h3/a/@href‘)[0].extract())                            yield SplashRequest(url                                        , self.parse_item                                        , args={‘wait‘: ‘1‘},                                        meta={‘date‘: date, ‘url‘: url,                                                  ‘keyword‘: keyword,‘title‘:title}                                            )    def parse_item(self, response):        site = Selector(response)        it = SplashTestItem()        it[‘title‘] = response.meta[‘title‘]        it[‘url‘] = response.meta[‘url‘]        it[‘date‘] = response.meta[‘date‘]        it[‘keyword‘] = response.meta[‘keyword‘]        sources = site.xpath(‘//span[@class="spanimg2"]/text()‘)        if len(sources)>0:            source =str(sources[0].extract()).replace(u‘来源： ‘,‘‘)            it[‘source‘] = source        return it