flsk如何加载静态页面和初始化session:
在自己创建的App目录下的初始化文件init.py文件里:
session要导入的模块:(1)pip install flask_session (2)pip install redis
import os
from flask import Flask
# 在虚拟环境中:pip install flask_session
from flask_session import Session
from APP.views import blue
def create_app():
BASE_DIR=os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
#结果: BASE_DIR = D:\\project\\flaskproject3
template_dir = os.path.join(BASE_DIR,'templates')
#结果: template_dir = D:\\project\\flaskproject3\\templates
static_dir = os.path.join(BASE_DIR,'static')
#结果: static_dir = D:\\project\\flaskproject3\\static
# 初始化 app
app = Flask(__name__,template_folder = template_dir,static_folder = static_dir )
#注册蓝图
app.register_blueprint(blueprint=blue,url_prefix='/app')
# session部分
# 密钥
app.config['SECRET_KEY'] = 'secret_key'
# 用来存储信息,保存在redis数据库里,默认访问了redis,127.0.0.1:6379
app.config['SESSION_TYPE'] = 'redis'
# 还可以设置session前缀
app.config['SECRET_KEY_PREFIX'] = 'flask'
# session第一种初始化app
Session(app)
# 第二种方式
#se = Session()
#se.inint.app(app)
return app
session相应的方法(view)
方法在App目录下的views.py文件里:
import random
from flask import Blueprint
from flask import request,redirect,url_for,render_template,session,make_response
# 初始化蓝图
blue = Blueprint('app',__name__)
# 实现session的方法
@blue.route('/login/',methods=['GET','POST'])
def login():
if request.method == 'GET':
# 获取名字叫username的session的值
username = session.get('username')
return render_template('login.html',username=username)
else:
# 获取表单的值
username = request.form.get('username')
# 创建session
session['username'] = username
return redirect(url_for('app.login'))
# flask实现cookie的方法
@blue.route('/getresponse/')
def get_response():
response = make_response('<h2>你是个snb<h2>')
ticket = ''
s = 'abcdefghijklmnopqrstuv'
for i in range(20):
ticket += random.choice(s)
response.set_cookie('ticket',ticket)
return response
# flask 删除cookie的方法
@blue.route('/delcookie/')
def del_cookie():
response = make_response('<h2>你是<h2>')
response.delete_cookie('ticket')
return response