Flask 项目目录结构(0)

flask 目录架构

git地址

https://github.com/Hughendman/flask-program

目录结构

| - projectName
	| - app  //程序包
		| - templates //jinjia2模板
		|- static //css,js 图片等静态文件
		| - main  //py程序包 ，可以有多个这种包，每个对应不同的功能
			| - __init__.py
			|- errors.py
		|- __init__.py
		| - models  //数据库模型
			| - __init__.py
			|- models.py
	| - tests  //单元测试
		|- __init__.py
		|- test*.py //单元测试程序，可以包含多个对应不同的功能点测试
	|- venv  //虚拟环境
	|- requirements.txt //列出了所有依赖包以及版本号，方便在其他位置生成相同的虚拟环境以及依赖
	|- config.py //全局配置文件，配置全局变量
	|- manage.py //启动程序

启动命令

python manage.py runserver -p 9033

自动生成Sqlalchemy的models文件

安装sqlacodegen

pip install sqlacodegen

使用

sqlacodegen mysql://root:abcd234@localhost:3306/superset_board?charset=utf8mb4 > models.py

开发文档

开发接口

| - projectName
	| - app
		| - templates
		|- static
		| - main
			| - __init__.py
			|- errors.py
        | - auth //接口文件
			| - __init__.py
			|- users.py
		|- __init__.py
		| - models
			| - __init__.py
			|- models.py
	| - tests
		|- __init__.py
		|- test*.py
	|- requirements.txt
	|- config.py
	|- manage.py

auth/init.py

from flask import Blueprint

auth = Blueprint('auth', __name__)

from .users import *

auth/users.py

from flask import jsonify
from app.models import *
from app.auth import auth

@auth.route('/user', methods=['GET', 'POST'])
def user():
    jsonResponse = dict(name="yinxs", auth="admin")
    response = jsonify(jsonResponse)
    return response

@auth.route('/module', methods=['GET', 'POST'])
def module():
    authPermission = AuthPermission.query.all()
    auth = json.dumps(authPermission, cls=AlchemyEncoder)
    return auth

app/init.py

# 增加auth蓝本
    from .auth import auth as auth_blueprint
    app.register_blueprint(auth_blueprint, url_prefix='/auth')

数据库配置

config.py

class DevelopmentConfig(Config):
    DEBUG = True
    SQLALCHEMY_DATABASE_URI = 'mysql://root:abcd234@localhost:3306/superset_board?charset=utf8mb4'
    SQLALCHEMY_TRACK_MODIFICATIONS = True

采用的SQLAlchemy，
处理json
models/models.py

def default(self, obj):
    if isinstance(obj.__class__, DeclarativeMeta):
        # an SQLAlchemy class
        fields = {}
        for field in [x for x in dir(obj) if not x.startswith('_') and x != 'metadata']:
            data = obj.__getattribute__(field)
            try:
                json.dumps(data)  # this will fail on non-encodable values, like other classes
                fields[field] = data
            except TypeError:
                if isinstance(data, datetime.datetime):
                    fields[field] = data.isoformat()
                elif isinstance(data, datetime.date):
                    fields[field] = data.isoformat()
                elif isinstance(data, datetime.timedelta):
                    fields[field] = (datetime.datetime.min + data).time().isoformat()
                else:
                    fields[field] = None
            if "query" in fields:
                del fields["query"]
            if "query_class" in fields:
                del fields["query_class"]
        # a json-encodable dict
        return fields
    return json.JSONEncoder.default(self, obj)

跨域处理

安装

使用

from flask_cors import CORS
CORS(app,supports_credentials=True)

集成前端

app = Flask(__name__,
                static_folder = "./dist/static",
                template_folder = "./dist")
@app.route('/')
def index():
    return render_template("index.html")

自动生成依赖包

pip freeze > requirements.txt

安装依赖包

pip install -r Requirements.txt

版本

10-18 first commit
10-22 mysqldb commit