0401自學web後端之——Flask配置文件

• 輸出默認config

from flask import Flask, current_app
app = Flask(__name__)
with app.app_context():
	print(dict(current_app.config))
	
{'ENV': 'production',
 'DEBUG': False,
 'TESTING': False,
 'PROPAGATE_EXCEPTIONS': None,
 'PRESERVE_CONTEXT_ON_EXCEPTION': None,
 'SECRET_KEY': None,
 'PERMANENT_SESSION_LIFETIME': datetime.timedelta(31),
 'USE_X_SENDFILE': False,
 'SERVER_NAME': None,
 'APPLICATION_ROOT': '/',
 'SESSION_COOKIE_NAME': 'session',
 'SESSION_COOKIE_DOMAIN': None,
 'SESSION_COOKIE_PATH': None,
 'SESSION_COOKIE_HTTPONLY': True,
 'SESSION_COOKIE_SECURE': False,
 'SESSION_COOKIE_SAMESITE': None,
 'SESSION_REFRESH_EACH_REQUEST': True,
 'MAX_CONTENT_LENGTH': None,
 'SEND_FILE_MAX_AGE_DEFAULT': datetime.timedelta(0, 43200),
 'TRAP_BAD_REQUEST_ERRORS': None,
 'TRAP_HTTP_EXCEPTIONS': False,
 'EXPLAIN_TEMPLATE_LOADING': False,
 'PREFERRED_URL_SCHEME': 'http',
 'JSON_AS_ASCII': True,
 'JSON_SORT_KEYS': True,
 'JSONIFY_PRETTYPRINT_REGULAR': False,
 'JSONIFY_MIMETYPE': 'application/json',
 'TEMPLATES_AUTO_RELOAD': None,
 'MAX_COOKIE_SIZE': 4093}

• 導入配置

# 設置配置文件
>>> vim settings.py
class BaseConfig(object):
    # 基礎配置
    NNN = 1
    AAA = 0

class TestConfig(BaseConfig):
    # 測試環境配置
    AAA = 111

class DevConfig(BaseConfig):
    # 開發環境配置
    AAA = 222

class ProConfig(BaseConfig):
    # 線上環境配置
    AAA = 333

import settings
from flask import Flask, current_app
app = Flask(__name__)
# 導入配置
app.config.from_object(settings.ProConfig)
with app.app_context():
	print(current_app.config['AAA'])

333

參考：https://www.jianshu.com/p/6b9a77f1c0cf