myspider.py 文件源码

def _extract_item(self, response):
        #???????
        l = ItemLoader(response=response, item=MyspiderItem(), type='html')
        l.add_xpath('movie_name', '//h1/span[@property="v:itemreviewed"]/text()')
        l.add_xpath('movie_year', '//span[@property="v:initialReleaseDate"]/text()')
        l.add_xpath('movie_type', '//span[@property="v:genre"]/text()')
        l.add_xpath('movie_rate', '//strong[@class="ll rating_num"]/text()')
        l.add_value('url', response.url)
        #????????????load_item()????scrapy.Item??
        #?scrapy-redis????json?item???????redis?item???
        #??json?????python?????????????item?????
        return dict(l.load_item())