Flask+Celery+Blueprint

其他博主已经有成套的博客，这里就不赘述，仅记录遇到的问题。

遇到1个问题：任务写入了broker，但是celery执行任务时报错拒绝访问句柄6错误

解决方法：
pip install gevent

celery -A my_shop.task.tasks worker -l info -P gevent

 

Flask+VUE3课程B站上有成套的。

核心代码结构如下：

__init__py 代码如下：

from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from config import config_map
from flask_migrate import Migrate

db = SQLAlchemy()

def create_app(config_name):
    app = Flask(__name__)
    print('config_name:' + config_name)
    obj = config_map.get(config_name if config_name else 'develop')
    # 将配置应用到app 有三种方式
    app.config.from_object(obj)
    # 初始化数据库
    db.init_app(app)
    # migrate = Migrate(app, db)
    migrate = Migrate()
    migrate.init_app(app=app,db=db)
    # 引入蓝图，需要放在内部import，初始化db后再导入蓝图
    from my_shop.user import user
    app.register_blueprint(user)
    from my_shop.menu import menu
    app.register_blueprint(menu)
    from my_shop.role import role
    app.register_blueprint(role)
    from my_shop.category import category
    app.register_blueprint(category)
    from my_shop.category import attribute
    app.register_blueprint(attribute)
    # 注册task的蓝图
    from my_shop.task import task
    app.register_blueprint(task)
    return app

tasks.py代码如下：

from celery import Celery
import time

celery = Celery("tasks",
                broker="redis://localhost:6379/3",
                backend="redis://localhost:6379/4")

@celery.task
def send_mail():
    print('测试异步任务开始....')
    time.sleep(3)
    print('测试异步任务结束')
    return 'OK'

task/__init__.py代码如下:

from flask import Blueprint

task = Blueprint('task', __name__)

from my_shop.task import view

task/view.py代码如下：

from my_shop.task import task
from my_shop.task.tasks import send_mail

@task.route('/add_task',methods=['GET'])
def add_task():
    """
    添加任务
    :return: 
    """
    send_mail.delay()
    return '添加成功 ！！！'