235.11.flask-蓝图

1.目录结构

2.代码包

• manage.py

from src import app
if __name__ == '__main__':
    app.run(debug=True)

• main.py

from flask import Flask

app = Flask(__name__)
app.config.from_object("settings.DevelopmentConfig")


@app.route("/index", methods=["POST", "GET"])
def index():
    pass

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

• src/__init__py

# coding=utf-8
"""
蓝图作用:
1.模块划分
2.某个模块路由加前缀
3.蓝图中的before_request装饰器只对当前模块生效
4.蓝图可以实现静态目录 template_folder="", static_folder=""设置
"""
from flask import Flask
app = Flask(__name__)

from views import account
from views import user
from views import admin


app.register_blueprint(account.ac)
app.register_blueprint(user.us)
app.register_blueprint(admin.ad)

• views/init.py

空的

• account.py

from flask import Blueprint

ac = Blueprint('account', __name__)


@ac.route("/login")
def login():
    return "login"


@ac.route("/logout")
def logout():
    return "logout"

• admin.py

from flask import Blueprint

ad = Blueprint('ac', __name__, url_prefix="/admin", template_folder="", static_folder="")


@ad.before_request
def bf():
    print("before request")


@ad.route("/admin")
def admin():
    return "admin"


@ad.route("/app")
def app():
    return "app"

• user.py

from flask import Blueprint

us = Blueprint('us', __name__)


@us.route("/info")
def info():
    return "info"


@us.route("/user")
def user():
    return "user"

其他目录文件都是空的

3.项目依赖环境生成

# coding=utf-8
"""
补充:
    - 项目依赖 pip3 install pipreqs;
        生成依赖文件: pipreqs ./ --force
        安装依赖文件: pip3 install -r requirements.txt
    - 什么是函数? 什么时方法?
        通过对象调用一个函数是他是方法, 方法一般会有一个参数由调用对象传入, 比如self

"""