我刚开始与Celery合作完成我最新的工作项目;我在异步执行任务时遇到了一些麻烦。
所有代码均来自Miguel Grinbergs 'Using Celery with Flask'
在不执行任务的情况下发送邮件时,它发送完全正常。虽然当我尝试延迟发送邮件时,但它没有给出如下错误。
smtplib.SMTPSenderRefused: (530, b'5.5.1 Authentication Required. Learn more at\n5.5.1 https://support.google.com/mail/answer/14257 h19sm960819igq.6 - gsmtp', 'email-removed@gmail.com')
这是我在Flask应用中使用的代码。
import os
import time
from flask import Flask, request, render_template, session, flash, redirect, url_for, jsonify
from flask.ext.mail import Mail, Message
from celery import Celery
app = Flask(__name__)
app.config['SECRET_KEY'] = 'super-duper-secret'
# Celery Configuration
app.config['CELERY_BROKER_URL'] = 'redis://localhost:6379/0'
app.config['CELERY_RESULT_BACKEND'] = 'redis://localhost:6379/0'
# Configuration for Flask-Mail
app.config['MAIL_SERVER'] = "smtp.gmail.com"
app.config['MAIL_PORT'] = 465
app.config['MAIL_USE_SSL'] = True
app.config['MAIL_USE_TLS'] = False
app.config['MAIL_USERNAME'] = 'email-removed@gmail.com'
app.config['MAIL_PASSWORD'] = 'password-removed'
app.config['MAIL_DEFAULT_SENDER'] = 'email-removed@gmail.com'
celery = Celery(app.name, broker=app.config['CELERY_BROKER_URL'])
celery.conf.update(app.config)
mail = Mail(app)
@app.route('/', methods=['GET', 'POST'])
def index():
if request.method == 'GET':
return render_template('index.html', email=session.get('email', ''))
email = request.form['email']
session['email'] = email
msg = Message("Hello from Flask", recipients=[email])
msg.body = "This is a test message from the flask application!"
if request.form['submit'] == "Send":
send_async_email(msg)
flash('Sending email to {0}'.format(email))
else:
send_async_email.apply_async(args=[msg], countdown=20)
flash('An email to {0} will be sent in a minute.'.format(email))
return redirect(url_for('index'))
@celery.task()
def send_async_email(msg):
with app.app_context():
mail.send(msg)
if __name__ == "__main__":
app.run(debug=True)
我很欣赏一些见解,也许是对如何使这项工作的解释,以及为什么它不起作用。
我还在这里查看了其他主题,并为我的Google帐户启用了不安全的应用访问权限,并按照错误返回网址中的建议清空了验证码。