1用意
flask灵活的文件组织结构让很多新手玩家痛苦万分,网上的相关教程也是良莠不齐,本人也是在几近崩溃的边缘疯狂试探
,坚持即时胜利,终于被我摸索出一个较为适用的简单文件组织结构. 本文从单文件结构,逐步拆分成多个部分,至于其中
各个步骤拆分的用意,还请恕在下才疏学浅,难以用文字形容,各位看官请自行体会.
2.简单示例
目录结构
app.py
from flask import Flask, render_template, request, redirect, url_for
from flask_sqlalchemy import SQLAlchemy
import config
app = Flask(__name__)
app.config.from_object(config)
db = SQLAlchemy(app)
class Record(db.Model):
__tablename__ = 'record'
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
name = db.Column(db.String(100), nullable=False)
content = db.Column(db.Text, nullable=False)
@app.route('/')
def index():
return render_template('index.html')
@app.route('/sign_up', methods=['GET', 'POST'])
def add_user():
if request.method == 'GET':
return render_template('sign_up.html')
else:
for i in request.args:
print(i)
# print(request.args.get('username')) #None
name = request.form.get('name')
print("name={}".format(name))
content = request.form.get('content')
print("content={}".format(content))
record = Record(name=name, content=content)
db.session.add(record)
db.session.commit()
return redirect(url_for('index'))
if __name__ == '__main__':
db.init_app(app)
app.run()
config.py
SQLALCHEMY_TRACK_MODIFICATIONS=True
DIALECT = 'mysql'
DRIVER = 'pymysql'
USERNAME = 'root'
PASSWORD = 'hujin666..'
HOST = '127.0.0.1'
PORT = '3306'
DATABASE = 'socketio_test'
SQLALCHEMY_DATABASE_URI = "{}+{}://{}:{}@{}:{}/{}?charset=utf8".format(DIALECT, DRIVER, USERNAME, PASSWORD, HOST, PORT,
DATABASE)
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>首页</title>
</head>
<body>
<a href="/sign_up">注册</a>
</body>
</html>sign_up.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>注册</title>
</head>
<body>
<form action="/sign_up" method="post">
<label for="name">用户名</label><input type="text" name="name" id="name">
<label for="content">密 码</label><input type="text" name="content" id="content">
<input type="submit" value="提交">
</form>
</body>
</html>
2.开始拆分
首先我们在根目录中新建一个extensions.py,将app.py中的头部部分拿进去extensions.py
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
import config
app = Flask(__name__)
app.config.from_object(config)
db = SQLAlchemy(app)然后在根目录中新建models包,并在models里面新建record.py文件record.py
from extensions import db
class Record(db.Model):
__tablename__ = 'record'
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
name = db.Column(db.String(100), nullable=False)
content = db.Column(db.Text, nullable=False)接着在根目录下新建routes包,并在routes里面新建record.py的路由文件
from extensions import app,db
from flask import render_template, request, redirect, url_for
from models.record import Record
@app.route('/')
def index():
return render_template('index.html')
@app.route('/sign_up', methods=['GET', 'POST'])
def add_user():
if request.method == 'GET':
return render_template('sign_up.html')
else:
for i in request.args:
print(i)
# print(request.args.get('username')) #None
name = request.form.get('name')
print("name={}".format(name))
content = request.form.get('content')
print("content={}".format(content))
record = Record(name=name, content=content)
db.session.add(record)
db.session.commit()
return redirect(url_for('index'))最后在根目录中新建一个入口文件run.py
run.py
from extensions import db
from routes.record import app
if __name__ == '__main__':
db.init_app(app)
app.run()
目录结构
数据库初始化比较简单,请自行建库建表,修改连接配置
自此大功告成,迈过flask的第一大坑
python
mysql
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