Python Flask异步发送邮件实现方法解析

第一步，修改工厂函数，配置邮件参数

from flask import flask
from config import config
from flask_sqlalchemy import sqlalchemy
from flask_mail import mail

db = sqlalchemy()
mail = mail()

def create_app():
  app = flask(__name__)
  app.config.from_object(config)
  db.init_app(app)
  mail.init_app(app)   from .controller import controller
  app.register_blueprint(controller)

  return app

第二步，新建一个线程来发送邮件

from flask import current_app, render_template
from flask_mail import message
from threading import thread
from main import mail

def send_async_email(app, msg):
  with app.app_context():
    mail.send(msg)

def send_email(to, subject, template = 'index', **kwargs):
  app = current_app._get_current_object()
  msg = message(subject, sender = app.config['mail_username'], recipients = [to])
  msg.html = render_template('{}.html'.format(template), **kwargs)
  thr = thread(target = send_async_email, args = [app, msg])
  thr.start()
  return thr

从current_app的_get_current_object()方法拿到应用程序上下文。特此记录一下

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