一、背景

因业务需要获取风险经济事件并采取应对措施，但因为种种原因又疏忽于每天去查看财经日历，于是通过爬取金十数据网站并自动推送到微信查看。

二、目标实现

image

三、环境与工具

1、pycharm：python开发IDE

四、实现思路

爬虫获取风险事件，然后python通过句柄定位到微信窗口，模拟键鼠操作本机微信客户端发给好友(自己)，最开始本来使用微信itchat库，但是这个是基于微信网页版，登录几次后微信提示：为了你的帐号安全,此微信号已不允许登录网页微信。你可以使用Windows微信或Mac。

五、主要代码

# -*- coding: utf-8 -*-

import scrapy

from selenium import webdriver

from scrapy import signals

import win32con,win32gui,time,win32api

import win32clipboard as w

import re

from datetime import datetime

hwnd = 394916 #微信窗口句柄，使用句柄工具获取

class JinshiSpider(scrapy.Spider):

name = 'jinshirili'

allowed_domains = ['jinshi.com']

start_urls = ['https://rili.jin10.com/']

@classmethod

def from_crawler(cls, crawler, *args, **kwargs):

spider = super(JinshiSpider, cls).from_crawler(crawler, *args, **kwargs)

options = webdriver.ChromeOptions()

options.add_argument('--headless')

spider.chrome = webdriver.Chrome(chrome_options=options)

crawler.signals.connect(spider.spider_closed, signal=signals.spider_closed)

return spider

def spider_closed(self, spider):

spider.chrome.quit()

print('一次爬取结束-----等待下次循环爬取')

def parse(self, response):

#获取风险事件列表

contents = response.xpath('//div[@class="jin-rili_content J_rili_content"]//tr')

# print(len(contents))

for i,content in enumerate(contents):

searchObj = re.search(r'', content.extract(),re.I)

lljd = content.extract().__contains__("利率决")

if searchObj or lljd:

if int(searchObj.group(1)) >= 80 or lljd: #风险等级达到4星或者是利率决定

# print("searchObj.group(1) : ", searchObj.group(1))

#

美国至3月20日美联储利率决定(上限)

searchObj = re.search(r'

[\s\r\n]+([\u4e00-\u9fa50-9a-zA-Z]+)', content.extract(), re.I)

event = ""

timeS = ""

if searchObj :

event = searchObj.group(1)

# print("event : ", event)

#

02:00

searchObj = re.search(r'time.*>([0-9:]+)

if searchObj:

timeS = searchObj.group(1)

# print("time : ", time)

msg = event+" "+timeS

# self.sendMsgToWX(msg)

#8 12 19点推送到微信

if datetime.now().hour == 8 or datetime.now().hour == 12 or datetime.now().hour == 19 :

self.sendMsgToWX(msg)

print(msg)

def sendMsgToWX(self, msg):

# 将微信放在前台

win32gui.SetForegroundWindow(hwnd)

time.sleep(2)

# 将鼠标移到(750, 700)

win32api.SetCursorPos((750, 700))

# 单击左键获取焦点

win32api.mouse_event(win32con.MOUSEEVENTF_LEFTDOWN, 750, 700, 0, 0)

win32api.mouse_event(win32con.MOUSEEVENTF_LEFTUP, 750, 700, 0, 0)

time.sleep(1)

# 将内容写入到粘贴板

w.OpenClipboard()

w.EmptyClipboard()

w.SetClipboardData(win32con.CF_TEXT, msg.encode(encoding='gbk'))

w.CloseClipboard()

time.sleep(1)

# 单击鼠标右键弹出上下文菜单

win32api.mouse_event(win32con.MOUSEEVENTF_RIGHTDOWN, 750, 700, 0, 0)

win32api.mouse_event(win32con.MOUSEEVENTF_RIGHTUP, 750, 700, 0, 0)

time.sleep(1)

# 单击鼠标左键点击粘贴

win32api.SetCursorPos((770, 720))

win32api.mouse_event(win32con.MOUSEEVENTF_LEFTDOWN, 770, 720, 0, 0)

win32api.mouse_event(win32con.MOUSEEVENTF_LEFTUP, 770, 720, 0, 0)

time.sleep(1)

# 按回车键发送

win32gui.PostMessage(hwnd, win32con.WM_KEYDOWN, win32con.VK_RETURN, 0)

win32gui.PostMessage(hwnd, win32con.WM_KEYUP, win32con.VK_RETURN, 0)