74 lines
2.9 KiB
Python
74 lines
2.9 KiB
Python
import scrapy
|
||
from selenium import webdriver
|
||
from dagongwangPro.items import DagongwangproItem
|
||
import re
|
||
|
||
|
||
class DagongSpider(scrapy.Spider):
|
||
name = 'dagong'
|
||
# allowed_domains = ['www.xxx.com']
|
||
start_urls = ['http://www.takungpao.com/news/index.html']
|
||
models_urls = [] # 存放5个板块的url
|
||
|
||
# 解析五大板块对应的详情页url数据
|
||
# 实例化浏览器对象
|
||
def __init__(self):
|
||
self.bro = webdriver.Chrome(executable_path='D:\pythondemo\crawler\chromedriver.exe')
|
||
|
||
def parse(self, response):
|
||
li_list = response.xpath('/html/body/div[2]/div/div[2]/ul[2]/li[2]/div/ul/li')
|
||
alist = [0, 2, 4, 6, 8] # [0内地, 2香港, 4两岸, 6国际, 8军事]
|
||
for index in alist:
|
||
model_url = li_list[index].xpath('./a/@href').extract_first()
|
||
self.models_urls.append(model_url)
|
||
|
||
# 依次对每个板块对应的Url发送请求
|
||
for url in self.models_urls:
|
||
# 4.11新增：新闻板块代码index
|
||
yield scrapy.Request(url, callback=self.parse_model, meta={'index': index})
|
||
|
||
# 解析每个板块中新闻标题对应的详情页内容
|
||
def parse_model(self, response):
|
||
div_list = response.xpath('//div[@class="wrapper clearfix"]/div[1]/dl')
|
||
for div in div_list:
|
||
name = div.xpath('./dd[1]/a/text()').extract_first()
|
||
# 图片对应的地址
|
||
src = div.xpath('./dt/a/img/@src').extract_first()
|
||
|
||
# 取出标题中的特殊字符
|
||
title = re.sub(u"\\(.*?\\)|\\{.*?}|\\[.*?]|\\*.*?|\\:.*?|\\/.*?|\\\".*?|\\\\.*?|\\?.*?\\|.*?", "", name)
|
||
|
||
new_detail_url = div.xpath('./dd[1]/a/@href').extract_first()
|
||
news_id = 'newsid'+(new_detail_url.split('/')[-1]).split('.')[0]
|
||
|
||
item = DagongwangproItem()
|
||
item['title'] = title
|
||
item['src'] = src
|
||
item['news_id'] = news_id
|
||
# 4.11新增：新闻板块代码index
|
||
item['index'] = response.meta['index']
|
||
|
||
# 对新闻详情页url发起请求
|
||
yield scrapy.Request(url=new_detail_url, callback=self.parse_detail, meta={'item': item})
|
||
|
||
# 解析新闻内容
|
||
def parse_detail(self, response):
|
||
title = response.xpath('//div[@class="wrap_left"]/h2/text()').extract_first()
|
||
|
||
content = response.xpath('//div[@class="wrap_left"]/div[3]//text()').extract()
|
||
content = ''.join(content)
|
||
|
||
date = response.xpath('//div[@class="wrap_left"]/div[1]/div[1]/span[1]/text()').extract_first()
|
||
|
||
author = response.xpath('//div[@class="wrap_left"]/div[1]/div[1]/span[2]/text() | //div[@class="wrap_left"]/div[1]/div[1]/span[2]/a/text()').extract_first()
|
||
|
||
item = response.meta['item']
|
||
item['content'] = content
|
||
item['date'] = date
|
||
item['author'] = author
|
||
|
||
yield item
|
||
|
||
def close(self, spider):
|
||
self.bro.quit()
|