python-邮件提醒功能

当scrapy爬取完成以后会发送详细信息到邮箱

1.首先编写邮件发送模块

#!usr/bin/env python
# -*- coding:utf-8 -*-
"""
@file: emailHandler.py
@time: 2018/04/21
"""
# 邮件服务封装

import smtplib
from email.mime.text import MIMEText
from email.utils import formataddr

status = {}   # 状态码
pipeline_item = {"item": 0,        # 成功item项
                 "item_error": 0,  # 失败item项
                 "error_info": ""  # 失败原因
                 }

spider_time = {"start": "", "end": ""}   # 开始结束时间

class EmailHandler(object):

    def __init__(self, user, password, type_=0):
        """
        :param user:str 发送人邮箱地址（用户名）
        :param password:str 发送人申请的授权码
        :param type_:int 0 为QQ邮箱 1 为163邮箱
        """
        self.__QQ = {'smtp': 'smtp.qq.com', 'port': 465}
        self.__163 = {'smtp': 'smtp.163.com', 'port': 25}
        self.user = user
        self.password = password
        if type_ == 0:
            self.server = smtplib.SMTP_SSL(self.__QQ['smtp'], self.__QQ['port'])
            self.server.login(self.user, self.password)
        elif type_ == 1:
            self.server = smtplib.SMTP_SSL(self.__163['smtp'], self.__163['port'])
            self.server.login(self.user, self.password)

    def send_mail(self, to, subject, content=None):
        """
        :param to:str 接收人邮箱地址
        :param subject:str 邮件标题
        :param content:str 邮件内容
        :return:bool True 成功 False 失败
        """
        try:
            if not content:
                content = "\r\n"
                for key in status.keys():
                    content += "状态码%s：%s次\r\n" % (key, status.get(key))
                content += "\r\n"
                content += "存入数据库成功条数：%s 条\r\n存入数据库失败条数：%s 条\r\n" % (pipeline_item.get("item"),
                                                                     pipeline_item.get('item_error'))

                if pipeline_item.get('item_error') > 0:
                    content += "失败原因：%s" % pipeline_item.get('error_info')
                content += "\r\n"

                content += "爬虫启动时间：%s \r\n爬虫结束时间：%s" % (spider_time.get("start"), spider_time.get("end"))
            msg = MIMEText(content, 'plain', 'utf-8')
            msg['From'] = formataddr(['', self.user])
            msg['To'] = formataddr(['', to])
            msg['Subject'] = subject

            self.server.sendmail(self.user, to, msg.as_string())
            print("【%s】邮件发送成功" % subject)
            return True
        except Exception as f:
            print("【%s】邮件发送失败,请检查信息" % subject)
            return False

　　

2.提供邮件提示所有数据

2.1在下载中间件中添加如下代码

from xxx.emailHandler import *
def process_response(self, request, response, spider):
    # Called with the response returned from the downloader.

    # Must either;
    # - return a Response object
    # - return a Request object
    # - or raise IgnoreRequest
     if response.status in status.keys():
          status[response.status] += 1
     else:
          status[response.status] = 0
     return response

2.2 在管道中加入如下代码

from xxx.middlewares import pipeline_item
def process_item(self, item, spider):
        client = MongoClient(self.host, self.port)
        db_auth = client.xiaosidb
        db_auth.authenticate(self.user, self.passwd)
        db = client[self.db]
        table = db[self.table]
        # data = dict(item)
        try:
            table.insert(dict(item))
            pipeline_item['item'] += 1
        except Exception as e:
            pipeline_item['item_error'] += 0
            pipeline_item['error_info'] = e
        return item

2.3在spiders 爬虫程序中加入如下代码

from xxx.middlewares import *
    def start_requests(self):
        spider_time['start'] = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
    def close(spider, reason):
        spider_time['end'] = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time()))
        to_sender = 'xxxx' # 要发送的邮箱
        mail = EmailHandler(user='xxxx', password='xxx')
        mail.send_mail(to_sender, '邮件标题')

3. 当爬虫运行完毕以后会发送邮件