scrapy框架post请求

# -*- coding: utf-8 -*-
import scrapy

class PostSpider(scrapy.Spider):
    name = 'post'
    # allowed_domains = ['www.xxx.com']
    start_urls = ['https://fanyi.baidu.com/sug']

    def start_requests(self):   # 重写该方法，发送的是post请求，scrapy.FormRequest()
        data = {
            'kw':'dog'
        }
        for url in self.start_urls:
            # yield scrapy.Request(url=url,callback=self.parse)  #本来该函数封装的是对url的get请求,scrapy.Request()
            yield scrapy.FormRequest(url=url,callback=self.parse,formdata=data)    #这里重写,

    def parse(self, response):
        print(response.text)