【Flask微电影】03.安装mysql数据库及配置

## 安装数据库连接依赖包 安装包`flask-sqlalchemy` ```python pip install flask-sqlalchemy pip list Package Version ---------------- ------- Click 7.0 Flask 1.0.2 Flask-SQLAlchemy 2.3.2 itsdangerous 0.24 Jinja2 2.10 MarkupSafe 1.0 pip 18.1 setuptools 40.4.3 SQLAlchemy 1.2.12 Werkzeug 0.14.1 wheel 0.32.1 ``` 中文文档 http://www.pythondoc.com/flask-sqlalchemy/index.html 查看配置键： http://www.pythondoc.com/flask-sqlalchemy/config.html#id2  连接格式 MySQL: `mysql://username:password@localhost/mydatabase` ## 创建mysql数据库 ### 下载mysql https://dev.mysql.com/downloads/mysql/ 这儿直接用的最新版**8.0** **MySQL Community Server** 学习使用下载社区版就可以 ### 安装mysql    打开开始菜单的`MySQL 8.0 Command Line Client`验证是否正常安装 ```bat Enter password: root Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 11 Server version: 8.0.12 MySQL Community Server - GPL Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> \s -------------- C:\Program Files\MySQL\MySQL Server 8.0\bin\mysql.exe Ver 8.0.12 for Win64 on x86_64 (MySQL Community Server - GPL) Connection id: 11 Current database: Current user: root@localhost SSL: Cipher in use is DHE-RSA-AES128-GCM-SHA256 Using delimiter: ; Server version: 8.0.12 MySQL Community Server - GPL Protocol version: 10 Connection: localhost via TCP/IP Server characterset: utf8mb4 Db characterset: utf8mb4 Client characterset: gbk Conn. characterset: gbk TCP port: 3306 Uptime: 2 min 20 sec Threads: 2 Questions: 23 Slow queries: 0 Opens: 147 Flush tables: 2 Open tables: 123 Queries per second avg: 0.164 -------------- ``` 如果cmd中`mysql`命令不管用，需要添加环境变量，在`Path`中添加`C:\Program Files\MySQL\MySQL Server 8.0\bin\`，也就是mysql的安装目录 然后就通过以下命令可以登录了 ```bat mysql -uroot -p Enter password: root ```

明人不说暗话 领红包就是支持！！！ 来都来了，再到页面底部看下呗~ ↓ ↓ ↓

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