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cn_spider.py
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cn_spider.py
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# -*- coding: utf-8 -*-
import jieba
import os
from lxml import etree
import requests
import time
from wordcloud import WordCloud
import threading as td
max_req = 5 # 最大重试次数
DIR_NAME = time.strftime("%Y-%m-%d %H_%M_%S", time.localtime())
try:
os.mkdir(DIR_NAME)
except Exception as e:
print(e)
pass
class GetHtml(object):
num = 0
def get_one_page(self, url, headers, timeout=5):
if self.num < max_req:
try:
response = requests.get(url=url, headers=headers, timeout=timeout)
if response.status_code == 200:
self.num = 0
return response
except TimeoutError:
print("Time Out", url)
self.num += 1
time.sleep(self.num)
return self.get_one_page(url=url, headers=headers, timeout=timeout + self.num * 3)
except Exception as e:
print(e, url)
self.num += 1
time.sleep(self.num)
return self.get_one_page(url=url, headers=headers, timeout=timeout + self.num * 3)
class BaseClass(GetHtml):
def __init__(self, url, name):
self.url = url
self.name = name
self.headers = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) "
"Chrome/67.0.3396.62 Safari/537.36"
}
self.timeout = 5
pass
def get_html(self):
return self.get_one_page(url=self.url, headers=self.headers, timeout=self.timeout).content.decode()
def parse(self, html):
pass
def save(self, info):
with open(".\\{}\\{}.txt".format(DIR_NAME, self.name), "a", encoding="utf-8") as f:
f.write(info)
f.write("\n")
def run(self):
s = time.time()
html = self.get_html()
for info in self.parse(html):
self.save(info)
self.wordc(self.name)
e = time.time()
print("{}完成,用时:".format(self.name), e - s)
def wordc(self, file_name, font_path="msyh.ttc"):
with open(".\\{}\\{}.txt".format(DIR_NAME, file_name), encoding="utf-8") as f:
seg_list = jieba.cut(f.read(), cut_all=False)
a = " ".join(seg_list)
word_coulds = WordCloud(
font_path=font_path, # 字体
background_color='white', # 背景颜色
max_words=5000, # 要显示的词的最大个数
min_font_size=9, # 显示的最小的字体大小
width=1100, # 输出的画布宽度,默认为400像素
height=650, # 输出的画布高度,默认为400像素
relative_scaling=1, # 词频和字体大小的关联性
random_state=20 # 可以有多少种随机配色
)
a = word_coulds.generate(a)
a.to_file(".\\{}\\{}.jpg".format(DIR_NAME, file_name))
class RenminRibao(BaseClass): # 人民日报
def __init__(self):
url = "http://paper.people.com.cn/rmrb/html/{}/nbs.D110000renmrb_01.htm".format(time.strftime("%Y-%m/%d"))
super().__init__(url, "人民日报")
def parse(self, html):
try:
ele = etree.HTML(html)
for i in ele.xpath('//div[@id="pageList"]/ul/div'):
if i.xpath('.//text()')[1][-2:] == "要闻":
nbs = i.xpath('.//a[@id="pageLink"]/@href')
qz_url = "http://paper.people.com.cn/rmrb/html/{}/".format(time.strftime("%Y-%m/%d"))
if nbs[0][:3] == "nbs":
info_html = self.get_one_page(qz_url + nbs[0], headers=self.headers).content.decode()
else:
info_html = self.get_one_page(qz_url + nbs[0][2:], headers=self.headers).content.decode()
elee = etree.HTML(info_html)
for ii in elee.xpath('//div[@id="titleList"]/ul//li'):
data_html = self.get_one_page(qz_url + ii.xpath('./a/@href')[0],
headers=self.headers).content.decode()
etr = etree.HTML(data_html)
yield "".join(etr.xpath('//div[@id="ozoom"]//p//text()'))
except IndexError as e:
print("人民日报", e)
class XinhuaRibao(BaseClass): # 新华日报
def __init__(self):
url = "http://xh.xhby.net/mp3/pc/layout/{}/".format(time.strftime("%Y%m/%d"))
super().__init__(url, "新华日报")
def get_html(self):
return self.get_one_page(url=self.url + "l1.html", headers=self.headers, timeout=self.timeout).content.decode()
def parse(self, html):
try:
ele = etree.HTML(html)
for i in ele.xpath('//ul[@class="page-num"]//li'):
if i.xpath('./a/text()')[0][4:] in ["要闻", "重要新闻"]:
info_url = self.url + i.xpath('./a/@href')[0]
info_html = self.get_one_page(info_url, headers=self.headers).content.decode()
elee = etree.HTML(info_html)
for ii in elee.xpath('//ul[@id="articlelist"]//li'):
data_url = ii.xpath('./a/@href')[0].replace("../../..", "http://xh.xhby.net/mp3/pc")
data_html = self.get_one_page(data_url, headers=self.headers).content.decode()
el = etree.HTML(data_html)
yield "".join(el.xpath('//div[@id="ozoom"]//p//text()'))
except IndexError as e:
print("新华日报", e)
except:
pass
class ChinaDaily(BaseClass): # 中国日报,海外
def __init__(self):
url = "http://www.chinadaily.com.cn/china/governmentandpolicy"
super().__init__(url, "中国日报")
def parse(self, html): # 提取每篇新闻的url,交由get_doc方法处理
try:
ele = etree.HTML(html)
blo = ele.xpath('//div[@id="lft-art"]//div[contains(@class, "mb10")]')
for i in blo:
yield "http:" + i.xpath('.//a/@href')[0]
except IndexError as e:
print("中国日报", e)
def get_doc(self, url): # 获取新闻正文
html = self.get_one_page(url, headers=self.headers).text
ele = etree.HTML(html)
for i in ele.xpath('//div[@id="Content"]'):
yield ''.join(i.xpath('.//p/text()'))
def run(self):
s = time.time()
html = self.get_html()
for url in self.parse(html):
for info in self.get_doc(url):
self.save(info)
self.wordc(self.name)
e = time.time()
print("中国日报完成,用时:", e - s)
class GMDaily(BaseClass): # 光明日报
def __init__(self):
url = "http://www.gmw.cn/"
super().__init__(url, "光明日报")
def parse(self, html): # 提取每篇新闻的url,交由get_doc方法处理
try:
ele = etree.HTML(html)
blo = ele.xpath('//div[contains(@class, "focusAreaM")]')
for i in blo:
lists = i.xpath('.//a[@target="_blank"]/@href')
for ii in lists:
if ii[:4] == "http":
yield ii
except IndexError as e:
print("光明日报", e)
def get_doc(self, url): # 获取新闻正文
html = self.get_one_page(url, headers=self.headers)
if html:
ele = etree.HTML(html.content.decode())
for i in ele.xpath('//div[@id="contentMain"]'):
yield ''.join(i.xpath('.//p//text()'))
def run(self):
s = time.time()
html = self.get_html()
for url in self.parse(html):
for info in self.get_doc(url):
# print(info)
self.save(info)
self.wordc(self.name)
e = time.time()
print("光明日报完成,用时:", e - s)
class ChinaGov(BaseClass): # 中国政府网,首页 > 新闻 > 要闻
# Add China Government Network News
def __init__(self):
url = "http://www.gov.cn/xinwen/yaowen.htm"
super().__init__(url, "中国政府网")
def get_html(self):
return self.get_one_page(url=self.url, headers=self.headers, timeout=8)
def parse(self, html):
try:
ele = etree.HTML(html)
blo = ele.xpath('//div[@class="news_box"]//ul//li')
for i in blo:
lists = i.xpath('.//h4/a/@href')
for ii in lists:
if i.xpath('.//h4/span/text()')[0].strip()[-2:] == time.strftime('%d'):
if ii[:4] == 'http':
yield ii
else:
yield 'http://www.gov.cn' + ii
except IndexError as e:
print("中国政府网", e)
except Exception as r:
print('中国政府网', r)
def get_doc(self, url):
html = self.get_one_page(url, headers=self.headers).content.decode()
ele = etree.HTML(html)
doc = ele.xpath('//div[@class="pages_content"]//p//text()')
return ''.join([i.strip() for i in doc if i])
def run(self):
s = time.time()
html = self.get_one_page(url=self.url, headers=self.headers, timeout=8).text
for url in self.parse(html):
info = self.get_doc(url)
self.save(info)
self.wordc(self.name)
e = time.time()
print("中国政府网完成,用时:", e - s)
if __name__ == '__main__':
s = time.time()
renminribao = RenminRibao()
xinhuaribao = XinhuaRibao()
chinadaily = ChinaDaily()
gmdaily = GMDaily()
chinagov = ChinaGov()
td.Thread(target=renminribao.run).start()
td.Thread(target=xinhuaribao.run).start()
td.Thread(target=chinadaily.run).start()
td.Thread(target=gmdaily.run).start()
td.Thread(target=chinagov.run).start()
print("用时:", time.time() - s)
os.startfile(DIR_NAME)