标签:direct 特殊 auto 登录 als handle imp fir bar
before_request、after_request
from flask import Flask,render_template,redirect app = Flask(__name__) """ before_reuqest = [xxxxxxxxxx1,xxxxxxxxxx2] """ @app.before_request def xxxxxxxxxx1(): print(‘前1‘) @app.before_request def xxxxxxxxxx2(): print(‘前2‘) """ after_request = [oooooooo1,oooooooo2] [oooooooo2,oooooooo1,] reversed(after_request) """ @app.after_request def oooooooo1(response): print(‘后1‘) return response @app.after_request def oooooooo2(response): print(‘后2‘) return response @app.route(‘/x1‘,methods=[‘GET‘,‘POST‘]) def x1(): print(‘视图函数x1‘) return "视图函数x1" @app.route(‘/x2‘,methods=[‘GET‘,‘POST‘]) def x2(): print(‘视图函数x2‘) return "视图函数x2" if __name__ == ‘__main__‘: app.__call__ app.run()
before_request返回
from flask import Flask,render_template,redirect app = Flask(__name__) @app.before_request def xxxxxxxxxx1(): print(‘前1‘) return "不要再来烦我了" @app.before_request def xxxxxxxxxx2(): print(‘前2‘) @app.after_request def oooooooo1(response): print(‘后1‘) return response @app.after_request def oooooooo2(response): print(‘后2‘) return response @app.route(‘/x1‘,methods=[‘GET‘,‘POST‘]) def x1(): print(‘视图函数x1‘) return "视图函数x1" @app.route(‘/x2‘,methods=[‘GET‘,‘POST‘]) def x2(): print(‘视图函数x2‘) return "视图函数x2" if __name__ == ‘__main__‘: app.__call__ app.run()
before_request实现用户登录
from flask import Flask,render_template,redirect,request,session app = Flask(__name__) app.secret_key = ‘asdfasdfasdf‘ @app.before_request def check_login(): if request.path == ‘/login‘: return None user = session.get(‘user_info‘) if not user: return redirect(‘/login‘) @app.route(‘/login‘,methods=[‘GET‘,‘POST‘]) def login(): return "视图函数x1" @app.route(‘/index‘,methods=[‘GET‘,‘POST‘]) def index(): print(‘视图函数x2‘) return "视图函数x2" if __name__ == ‘__main__‘: app.run()
errorhandler() 报错返回友好界面
@app.errorhandler(404) def error404(args): print(args) return "您访问的页面不存在或者走丢了,,,,,,%s" % (args)
标签:direct 特殊 auto 登录 als handle imp fir bar
原文地址:https://www.cnblogs.com/wuyuan2011woaini/p/14862462.html