228.4.flask试图

1.试图

# coding=utf-8
from flask import Flask, views
from functools import wraps
app = Flask(__name__)
app.config.from_object("settings.DevelopmentConfig")


# 直接使用装饰器是FBC
def wapper(func):
    @wapper(func)
    def inner(*arg,**kwargs):
        print("before")
        return func(*arg, **kwargs)
    return inner


@app.route("/index", methods=["POST", "GET"])
@wapper  # 装饰器需要写到route装饰器的下面
def index():
    pass


# 下面通过类给请求加上装饰器是CBV

class IndexView(views.View):
    methods = ['GET']
    decorators = [wapper, ]

    def dispatch_request(self):
        print('Index')
        return 'Index!'


app.add_url_rule('/index', view_func=IndexView.as_view(name='index'))  # name=endpoint


class IndexView(views.MethodView):
    methods = ['GET']
    decorators = [wapper, ]  # 给所有的请求加装饰器

    def get(self):
        return 'Index.GET'

    def post(self):
        return 'Index.POST'


app.add_url_rule('/index', view_func=IndexView.as_view(name='index'))  # name=endpoint


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