flask使用子域名

https://www.geeksforgeeks.org/subdomain-in-flask-python/

使用子域名需要首先修改hosts文件

##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting.  Do not change this entry.
##
127.0.0.1   localhost
255.255.255.255 broadcasthost
::1             localhost 
127.0.0.1 example.com
127.0.0.1 public.example.com   
127.0.0.1 api.example.com

之后再使用

from flask import Flask, render_template, Blueprint

app = Flask(__name__)
website_url = 'example.com:5000'
app.config['SERVER_NAME'] = website_url

public = Blueprint('public', __name__)

api = Blueprint('api', __name__, url_prefix='/api')



@public.route('/helloflask')
def home():
    return 'hello flask'

@api.route('/api')
def apihome():
    return 'API'

app.register_blueprint(public, subdomain='public')
app.register_blueprint(api, subdomain='api')

@app.route('/')
def index():
    #return '<h1>Hello Flask!</h1>'
    mkd = '''# header
    ## header2
    [picture](http://www.example.com)
    * 1
    * 2
    * 3
    **bold**
    '''
    return  render_template('test_1.html', mkd=mkd)


@app.route('/greet', defaults={'name': 'Programmer'})
@app.route('/greet/<name>')
def greet(name):
    return '<h1>Hello, %s!</h1>' % name