普通結構

— application.py 全局變量
— common
— libs
— models
— config 配置文件
—controllers
— index.py
— manger.py 文件入口
—requirement.txt 擴展列表
— static 靜態文件夾
— templates 模板存放文件夾
— common
— index.html
— www.py 路由

application.py 全局變量

from flask import Flask
from flask_cors import CORS
from flask_sqlalchemy import SQLAlchemy
from config.dev_setting import AppConfig
def creat_abb(config):
    app = Flask(__name__)
    app.config.from_object(config)
    return app
app = creat_abb(AppConfig)
cors = CORS(app)
db = SQLAlchemy(app)
@app.route('/')
def hello():
    return "hello, home page"

common

libs

models

models.py

# coding: utf-8
from sqlalchemy import BigInteger, Column, Date, Integer, Numeric, String, Table
from application import db
class User(db.Model):
    __tablename__ = 'user'
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(255))
    password = db.Column(db.String(255))

config 配置文件

dev_setting.py

class AppConfig():
    SQLALCHEMY_DATABASE_URI='mysql+pymysql://juha:123@10.202.0.201/tranfer_data'
    SQLALCHEMY_TRACK_MODIFICATIONS = True

controllers

blueprints.py

from flask import Blueprint,make_response,jsonify,request
from applog import logger
from flask_sqlalchemy import SQLAlchemy
from common.models import User,db
import random
user = Blueprint("user",__name__)
@user.route('/login',methods=['POST'])
def index():
    logger.debug(db.session.query(User.name,User.password).all())
    logger.debug(request)
    req = request.values
    logger.debug(req)
    login_name = req.get("username")
    token = 7788
    userinfo = {"name":"tom","age":25,"token":token}
    response = make_response(jsonify(userinfo))
    return response
@user.route('/logout',methods=['POST'])
def hello():
    return "logout page"

manger.py 文件入口

將自定義的命令寫道這個文件中

from application import app,db
from router import *
import click
##web server 使用flask runserver即可啓動
@app.cli.command("runserver")
def runserver():
    app.run(host="0.0.0.0",port=7755,debug=True)
def main():
    runserver()
if __name__ == '__main__':
    try:
        import sys
        sys.exit(main())
    except Exception as e:
        import traceback
        traceback.print_exc()

requirement.txt 擴展列表

static 靜態文件夾

templates 模板存放文件夾

— common
— index.html

router.py 路由

from application import app
from controllers.blueprints import user
app.register_blueprint(user,url_prefix='/user')

這裏還整了一個日志記錄

import logging
# create logger
logger = logging.getLogger('controllers.blueprints.py')
logger.setLevel(logging.DEBUG)
# create file handler and set level to debug
handler = logging.FileHandler('log.txt', 'a')
handler.setLevel(logging.DEBUG)
# create formatter
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
# add formatter to handler
handler.setFormatter(formatter)
# add handler to logger
logger.addHandler(handler)

更好的結構

自定义启动命令

需要pip install flask_script

使用這個工具，可以使用自定義命令來啓動項目。
但是這個作者說，flask官方的Command Line Interface更好用。官方的cli是依賴click庫的。

import click
from flask import Flask
app = Flask(__name__)
@app.cli.command("create-user")
@click.argument("name")
def create_user(name):
    ...

多环境配置文件

Debug工具flask_debugtoolbar

正常安装后，是右侧这个样子的，但是不知道为什么一开始并没有成功。

请求拦截器

错误处理器