技術標籤：Flask框架python

flask框架之資料庫配置問題

config配置檔案下報錯，程式碼如下：

# -*- coding: utf-8 -*-
# @Author: Small-J
# @Date  : 2020/12/22

# 該檔案存放資料庫配置項

USERNAME = 'root'
PASSWORD = 'root'
HOST = '127.0.0.1'
PORT = '3306'
DATABASE = 'JobData'

DB_URL = 'MySQL+pyMySQL://{}:{}@{}:{}/{}?charset=utf8'.format(USERNAME, PASSWORD,
 
 HOST, PORT, DATABASE)

SQLALCHEMY_DATABASE_URI = DB_URL

# 動態追蹤修改設定，如未設定只會提示警告
SQLALCHEMY_TRACK_MODIFICATIONS = False

# 查詢時會顯示原始sql語句
SQLALCHEMY_ECHO = True

報錯如下：

sqlalchemy.exc.NoSuchModuleError: Can't load plugin: sqlalchemy.dialects:MySQL.pyMySQL

• 意思是找不到相對應的外掛

解決方案如下

• 將DB_URL的路徑改成小寫形式

# -*- coding: utf-8 -*-
 

# @Author: Small-J
# @Date  : 2020/12/22

# 該檔案存放資料庫配置項

USERNAME = 'root'
PASSWORD = 'root'
HOST = '127.0.0.1'
PORT = '3306'
DATABASE = 'JobData'

DB_URL = 'mysql+pymysql://{}:{}@{}:{}/{}?charset=utf8'.format(USERNAME, PASSWORD, HOST, PORT, DATABASE)

SQLALCHEMY_DATABASE_URI = DB_URL

# 動態追蹤修改設定，如未設定只會提示警告
SQLALCHEMY_TRACK_MODIFICATIONS =
 
 False

# 查詢時會顯示原始sql語句
SQLALCHEMY_ECHO = True