Jsonify似乎无法在应用程序上下文之外工作,有什么解决方法吗?
我正在使用websocket替换一些ajax请求,因为需要提高性能和解决网络问题。我在我的env中使用pip安装了Flask-WebSocket。现在我遇到一个错误:
RuntimeError: working outside of application context
我的应用程序框架如下所示:
app/
├── forms
├── static
│ ├── css
│ ├── img
│ │ └── DefaultIcon
│ │ ├── eps
│ │ └── png
│ └── js
├── templates
├── ups
└── views
Websockets的python文件位于views/ajax.py中:
# -*- coding: utf-8 -*-
# OS Imports
import time
# Flask Imports
from flask import jsonify
from .. import sockets
from app.functions import get_cpu_load, get_disk_usage, get_vmem
# Local Imports
from app import app
from app.views.constants import info, globalsettings
@sockets.route('/_system')
def _system(ws):
"""
Returns the system informations, JSON Format
CPU, RAM, and Disk Usage
"""
while True:
message = ws.receive()
if message == "update":
cpu = round(get_cpu_load())
ram = round(get_vmem())
disk = round(get_disk_usage())
ws.send(jsonify(cpu=cpu, ram=ram, disk=disk)
我使用以下命令启动我的应用程序:
gunicorn -k flask_sockets.worker app:app
这是我在app/文件夹中的__init__.py
:
# -*- coding: utf-8 -*-
from flask import Flask
from flask_sockets import Sockets
app = Flask(__name__)
sockets = Sockets(app)
app.config.from_object('config')
from app import views as application
为什么 jsonify 不起作用,有什么替代方法可用?