(1). 安装第三方库
pip install flask==2.3.2 -i https://pypi.tuna.tsinghua.edu.cn/simple/
pip install pymysql -i https://pypi.tuna.tsinghua.edu.cn/simple/
pip3 install jinja2==3.1.2 -i https://pypi.tuna.tsinghua.edu.cn/simple/
pip install flask-script==2.0.5 -i https://pypi.tuna.tsinghua.edu.cn/simple/
pip install flask-sqlalchemy==3.0.3 -i https://pypi.tuna.tsinghua.edu.cn/simple/
pip install flask-migrate==2.7.0 -i https://pypi.tuna.tsinghua.edu.cn/simple/
pip install flask-bootstrap(2). 配置settings.py 全局配置文件
# 前提:新建数据库
# create database flaskyyds(库名) charset = utf8;# 配置文件
class Config: # 公共配置DEBUG = True# mysql + pymysql ://user:password@hostip:port/databasename# 链接数据库SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://root:root@127.0.0.1:3306/flaskyyds'SQLALCHEMY_TRACK_MODIFICATIONS = False # 忽略警告SQLALCHEMY_ECHO = True # 开发调试class DevelopmentConfig(Config): # 开发环境ENV = "development"class ProductionConfig(Config): # 生产环境ENV = 'production'DEBUG = False
(3). 新建包文件 ext 包 / apps 包
(4). ext.__init__.py创建对象
# 创建映射对象
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()# 创建bootstrap对象
from flask_bootstrap import Bootstrap
bootstrap = Bootstrap()
(5). apps / __init__.py 初始化对象
import settings
from flask import Flask
from ext import db, bootstrapdef create_app():app = Flask(__name__, template_folder="../templates", static_folder="../static")# 导入settings.py文件app.config.from_object(settings.DevelopmentConfig)# 初始化配置dbdb.init_app(app=app)# 初始化bootstrapbootstrap.init_app(app)return app(6). apps / user / views.py 定义蓝图
from flask import Blueprint# url_prefix='/user': 前导航: xxxx/user/xxx
user_bp = Blueprint("user", __name__, url_prefix='/user')@user_bp.route("/register", methods=["GET", "POST"])
def register():return "泰裤辣"(7). apps / __init__.py 注册蓝图
from apps.user.view import user_bpdef create_app():........# 注册蓝图app.register_blueprint(user_bp)return app(8). 编辑app.py启动文件
from flask_migrate import Migrate, MigrateCommand
from flask_script import Manager
from apps import create_app
from ext import dbapp = create_app()manager = Manager(app=app)migrate = Migrate(app=app, db=db)
manager.add_command("db", MigrateCommand)if __name__ == '__main__':manager.run()(9). 终端启动项目
python app.py runserver# 浏览器访问:http://127.0.0.1:5000/user/register ;出现 泰裤辣 表示配置成功
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