Python Scrapy输出JSON或CSV
我正在使用此代码settings.py尝试web抓取Python Scrapy输出JSON或CSV,python,json,excel,csv,scrapy,Python,Json,Excel,Csv,Scrapy,我正在使用此代码settings.py尝试web抓取 FEED_EXPORT_ENCODING = 'utf-8' import datetime now = datetime.datetime.now () formatted = now.strftime ("%Y%m%d_%H%M") FEED_URI = f'\\C:\\Users\\Acer\\Desktop\\{formatted}.csv' FEED_TYPE = 'csv' 有了这个特别的_offers.py # -*- co
FEED_EXPORT_ENCODING = 'utf-8'
import datetime
now = datetime.datetime.now ()
formatted = now.strftime ("%Y%m%d_%H%M")
FEED_URI = f'\\C:\\Users\\Acer\\Desktop\\{formatted}.csv'
FEED_TYPE = 'csv'
有了这个特别的_offers.py
# -*- coding: utf-8 -*-
import scrapy
import datetime
class SpecialOffersSpider(scrapy.Spider):
name = 'special_offers'
allowed_domains = ['www.tinydeal.com']
def start_requests(self):
yield scrapy.Request(url='https://www.tinydeal.com/specials.html', callback=self.parse, headers={
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36'
})
def parse(self, response):
for product in response.xpath("//ul[@class='productlisting-ul']/div/li"):
yield {
'title': product.xpath(".//a[@class='p_box_title']/text()").get(),
'url': response.urljoin(product.xpath(".//a[@class='p_box_title']/@href").get()),
'discounted_price': product.xpath(".//div[@class='p_box_price']/span[1]/text()").get(),
'original_price': product.xpath(".//div[@class='p_box_price']/span[2]/text()").get(),
'User-Agent': response.request.headers['User-Agent'].decode('utf-8'),
'datetime': datetime.datetime.now().strftime("%Y%m%d %H%M")
}
next_page = response.xpath("//a[@class='nextPage']/@href").get()
if next_page:
yield scrapy.Request(url=next_page, callback=self.parse, headers={
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36'
})
然后我打开终端并使用
scrapy crawl special_offers
问题是,当我导出JSON时,数据在}{之间没有逗号。例如,使我的文件不被Power BI读取
当我导出CSV时,数据与我使用EXCEL打开时预期的不同
CSV数据示例
{“标题”:“用于覆盆子皮3 B型和覆盆子皮2 E-524988的ABS塑料外壳”,“url”:“折扣价”:“R$12.74”,“原价”:“R$13.66”,“用户代理”:“Mozilla/5.0(Windows NT 10.0;Win64;x64)ApplbKewit/537.36(KHTML,如Gecko)Chrome/76.0.3809.100 Safari/537.36”,“日期时间”:“20200420 2330”}
{“标题”:“3M 9001 KN90防尘口罩呼吸器防尘PM2.5工业建筑Polle RTH-562440”,“url”:“折扣价”:“R$10.29”,“原价”:“R$12.40”,“用户代理”:“Mozilla/5.0(Windows NT 10.0;Win64;x64)AppleWebKit/537.36(KHTML,如壁虎)Chrome/76.0.3809.100 Safari/537.36”,“日期时间”:“20200420 2330”}
{“标题”:“二合一复古蓝色莱茵石项链+耳环首饰套装DJA-562974”,“url”:“折扣价”:“R$11.77”,“原价”:“R$30.77”,“用户代理”:“Mozilla/5.0(Windows NT 10.0;Win64;x64)ApplbKewit/537.36(KHTML,像Gecko)Chrome/76.0.3809.100 Safari/537.36”,“日期时间”:“20200420 2330”}
{“标题”:“64GB USB 2.0闪存驱动器USB笔驱动器U盘EFM-561923”,“url”:“折扣价”:“34.83雷亚尔”,“原价”:“99.43雷亚尔”,“用户代理”:“Mozilla/5.0(Windows NT 10.0;Win64;x64)AppleWebKit/537.36(KHTML,如Gecko)Chrome/76.0.3809.100 Safari/537.36”,“日期时间”:“20200420 2330”}
JSON数据示例
{
“标题”:“B型覆盆子皮3和E-524988覆盆子皮2 ABS塑料外壳”,
“url”:“,
“折扣价”:“12.74雷亚尔”,
“原价”:“13.66雷亚尔”,
“用户代理”:“Mozilla/5.0(Windows NT 10.0;Win64;x64)AppleWebKit/537.36(KHTML,类似Gecko)Chrome/76.0.3809.100 Safari/537.36”,
“日期时间”:“20200420 2329”
}
{
“标题”:“3M 9001 KN90防尘口罩呼吸器防尘PM2.5工业建筑Polle RTH-562440”,
“url”:“,
“折扣价”:“10.29雷亚尔”,
“原价”:“12.40雷亚尔”,
“用户代理”:“Mozilla/5.0(Windows NT 10.0;Win64;x64)AppleWebKit/537.36(KHTML,类似Gecko)Chrome/76.0.3809.100 Safari/537.36”,
“日期时间”:“20200420 2329”
}
{
“标题”:“2合1复古蓝色莱茵石项链+耳环首饰套装DJA-562974”,
“url”:“,
“折扣价”:“11.77雷亚尔”,
“原价”:“30.77雷亚尔”,
“用户代理”:“Mozilla/5.0(Windows NT 10.0;Win64;x64)AppleWebKit/537.36(KHTML,类似Gecko)Chrome/76.0.3809.100 Safari/537.36”,
“日期时间”:“20200420 2329”
}
有人能告诉我这些输出中哪里出了问题吗?你是如何获得这些数据的?从你显示的内容中,我怀疑你是从终端复制的。是吗?如果是,有一种方法可以使用以下命令将其直接保存到文件中:
scrapy crawl特价商品-o/special\u offers.json
希望这能解决您的问题。请告诉我。您可以使用自己的管道写入json