CODE EXAMPLE FOR PYTHON

scrapy itemloader example

def parse_item(self, response):

        loader = ItemLoader(GaokaopaiZhiyeItem(), response)
        loader.add_value('url', response.url)
        loader.add_value('code', response.url, re=ur'-([^-]+).html')
        loader.add_css('name', u'.modTitle>h1::text')

        def parse_category():
            for e in response.css(u'.catType>a'):
                yield {
                    'url': e.css('::attr(href)').extract_first(),
                    'code': e.css('::attr(href)').re_first(ur'-([^-]+).html'),
                    'name': e.css('::text').extract_first(),
                }

        loader.add_value('category', list(parse_category()))
        loader.add_css('detail', u'.zhiyeShow')

        item = loader.load_item()

        return FormRequest(
            url='http://www.gaokaopai.com/ajax-career-getRelateMajor.html',
            formdata={'code': item['code'][0]},
            meta={'item': item},
            dont_filter=True,
            callback=self.parse_majors
        )