无法将Dash 1.4.0正确部署到CentOS Apache服务器，网页保持上传状态，为什么? [英] Can’t correctly deploy Dash 1.4.0 to CentOS Apache server, webpage stays in uploading state, why?
问题描述
我使用Dash 1.4.0和Flask 1.0.2创建以下小型应用程序，请在下面找到它.我能够将其部署到Centos Apache服务器，它启动了，但是我得到的唯一东西是一个加载页面，在浏览器控制台中，我看到某些组件不存在，请参见printscreen(我在图中删除了我服务器的ip)，我应该怎么做才能解决这个问题?它可以在我的PC上正常工作
I create the following small app with Dash 1.4.0 and Flask 1.0.2, please find it below. I was able to deploy it to Centos Apache server, it starts but the only stuff I get is a loading page, in browser console I see that some components are absent, please see printscreen (I deleted ip of my server in the picture), what should I do to solve the issue? It works in my PC with no problems
Chrome浏览器中的控制台:
Console in Chrome browser:
WebApp代码:
from libs.initsetup import InitSetup
import libs.dbops as dbops
import os
import dash
import dash_core_components as dcc
import dash_html_components as html
from flask_caching import Cache
from flask import Flask
on_server = True
if not on_server:
WORKDIR = ""
else:
WORKDIR = "/var/www/mosregwebsite_dash_plot"
external_stylesheets = ['https://codepen.io/chriddyp/pen/bWLwgP.css']
server = Flask(__name__)
dash_app = dash.Dash(__name__, server=server)
dash_app.scripts.config.serve_locally = True
dash_app.css.config.serve_locally = True
cache = Cache(dash_app.server, config={
'CACHE_TYPE': 'filesystem',
'CACHE_DIR': WORKDIR + os.path.join(os.getcwd(), 'cache-directory')
})
TIMEOUT = 1800 # plots are updated every 30 minutes
@cache.memoize(timeout=TIMEOUT)
def return_layout():
clients = InitSetup.read_initfile_json(WORKDIR + os.path.join(os.getcwd(), "jsons", "clients.json"))
HOST, DBUSER, DBPASSWORD, AUTH_PLUGIN, *rest = InitSetup.read_mysql_init_config_file(WORKDIR +
os.path.join(os.getcwd(), "mosregwebsite_dash_plot.config.txt"))
conn, curs = dbops.create_mysql_connection(HOST, DBUSER, DBPASSWORD, AUTH_PLUGIN)
graphs = []
for k, v in clients.items():
x, y = dbops.select_data_for_pictures(curs, k)
graphs.append({'x': x, 'y': y, 'type': 'lineplot', 'name': v})
return html.Div(children=[
dcc.Graph(
style={
'textAlign': 'center',
'height': '900px',
},
id='example-graph',
figure={
'data': graphs,
'layout': {
}
}
)
])
dash_app.layout = return_layout
if __name__ == '__main__':
os.mkdir("numbeo")
if not on_server:
dash_app.run_server(host='127.0.0.107', port=8999, debug=False)
else:
HOST, PORT = InitSetup.read_website_settings_from_config_file(
WORKDIR + os.path.join(os.getcwd(),
"mosregwebsite_dash_plot.config.txt"))
dash_app.run_server(host=HOST, port=int(PORT), debug=False)
######### WSGI FILE: ##################
import sys
import os
activate_this = '/var/www/mosregwebsite_dash_plot/env/bin/activate_this.py'
with open(activate_this) as file_:
exec(file_.read(), dict(__file__=activate_this))
sys.path.insert(0, '/var/www/mosregwebsite_dash_plot/')
from mosregwebsite_dash_plot import server as application
####### SETUP.PY ##############
from setuptools import setup
setup(
name='mosreg_webscrap_website',
version='1.0.0',
packages=[''],
url='',
license='',
author='kozyrev.av',
author_email='kozirev8@gmail.com',
description='This is website which display processed information from
mosreg website',
install_requires=[
'dash==1.4.0',
'Flask-Caching==1.7.2',
'mysql-connector==2.2.9',
'mysql-connector-python==8.0.16',
'flask==1.0.2'
]
)
推荐答案
https://dash.plot.ly/react-for-python-developers 检查一切是否正确安装.
https://dash.plot.ly/react-for-python-developers check everything is installed correctly.
要安装Node.js，请访问Node.js网站以下载最新版本 版本.我们建议安装LTS版本.
Node.js将 自动在您的计算机上安装Node Package Manager npm
通过运行以下命令验证是否已安装节点:node -v
验证npm是 通过运行安装:npm -v
To install Node.js, go to the Node.js website to download the latest version. We recommend installing the LTS version.
Node.js will automatically install the Node Package Manager npm on your machine
Verify that node is installed by running: node -v
Verify that npm is installed by running: npm -v
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