PyCharm新建一个项目

创建一个app_1的package包

进行MVT拆分

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views.py里面创建蓝图，写入路由

from flask import Blueprint

blue = Blueprint('app_1', __name__)

app.py里面注册路由

from flask import Flask

from app_1.views import blue_1

app = Flask(__name__)


app.register_blueprint(blueprint=blue_1)


if __name__ == '__main__':
    app.run()

开启debug模式

Pycharm2018之后的版本

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app.run(debug=True)

配置数据库定义模型

这里我用SQLAlchemy+Sqlite3

app.py里面配置数据库

# 配置数据库
# 数据库地址
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///db.db'
# 关闭数据跟踪修改
app.config['SQLALCHEMY_TRACE_MODIFICATIONS'] = False
# 设置密钥
app.config['SECRET_KEY'] = '123'

models.py里面定义模型

from flask_sqlalchemy import SQLAlchemy

db_1 = SQLAlchemy()


# 通过函数传入app
def init_models(app):
    db_1.init_app(app=app)


class Person(db_1.Model):
    # 表名
    __tablename__ = 'Person'
    p_id = db_1.Column(db_1.Integer, primary_key=True, autoincrement=True)
    p_name = db_1.Column(db_1.String(16), unique=True)

    def __repr__(self):
        return 'Person:{}{}'.format(self.name, self.p_id)

views.py里面

from app_1.models import db_1

@blue_1.route('/createdb1/')
def createdb1():
    db_1.create_all()
    return '数据库创建成功！'

注意：网页地址不能用下划线

完整的代码：

目录结构

image.png

app.py

from flask import Flask
from app_1.models import init_models
from app_1.views import blue_1

app = Flask(__name__)
# 配置数据库
# 数据库地址
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///db.db'
# 关闭数据跟踪修改
app.config['SQLALCHEMY_TRACE_MODIFICATIONS'] = False
# 设置密钥
app.config['SECRET_KEY'] = '123'
app.register_blueprint(blueprint=blue_1)
init_models(app)
if __name__ == '__main__':
    app.run()

views.py

from flask import Blueprint
from app_1.models import db_1

blue_1 = Blueprint('app_1', __name__)


@blue_1.route('/')
def index():
    return 'hello'


@blue_1.route('/createdb1/')
def createdb1():
    db_1.create_all()
    return '数据库创建成功！'

models.py

from flask_sqlalchemy import SQLAlchemy

db_1 = SQLAlchemy()


# 通过函数传入app
def init_models(app):
    db_1.init_app(app=app)


class Person(db_1.Model):
    # 表名
    __tablename__ = 'Person'
    p_id = db_1.Column(db_1.Integer, primary_key=True, autoincrement=True)
    p_name = db_1.Column(db_1.String(16), unique=True)

    def __repr__(self):
        return 'Person:{}{}'.format(self.name, self.p_id)

这样一个MVT拆分的网站结构就搭建出来了

接下来尽情happy吧！