Flask项目之login提交

 #!/usr/bin/env python

 # -*- coding: utf-8 -*-

 # @Time    : 2019/11/2 20:53

 # @Author  : zoulixiang

 # @Site    :

 # @File    : s2.py

 # @Software: PyCharm

 from flask import Flask,render_template,request,redirect,session,url_for

 app = Flask(__name__)

 #自动重启和检测，调试模式

 app.debug = True

 USERS = {

     1:{'name':'z','age':12,'gender':'男','text':'ssssssss'},

     2:{'name':'z1','age':13,'gender':'男','text':'xxxxxxxx'},

     3:{'name':'z1','age':14,'gender':'女','text':'hhhhhhhh'}

 }

 @app.route('/detail/<int:nid>',methods=['GET'])

 def detail(nid):

     # 当你登录成功之后，session是有值，有值之后上面每个登录都需要重新判断

     user = session.get('user_info')

     if not user:

         return redirect('/login')

     info = USERS.get(nid)

     return render_template('detail.html',info=info)

 @app.route('/index',methods=['GET'])

 def index():

     #session #当你登录成功之后，session是有值，有值之后上面每个登录都需要重新判断

     user = session.get('user_info')

     if not user:

         #反向生成url

         url = url_for('l1')

         return redirect(url)

     return render_template('index.html',user_dict=USERS)

 @app.route('/login',methods=['GET','POST'],endpoint='l1') #endpoin 别名

 def login():

     if request.method == "GET":

         return render_template('login.html')

     else:

         user = request.form.get('user')

         pwd = request.form.get('pwd')

         if user == 'alex' and pwd == '':

             #当你登录成功之后，session是有值，有值之后上面每个登录都需要重新判断

             session['user_info'] = user

             print(session['user_info'])

             return redirect('https://www.baidu.com')

         return render_template('login.html',error = '用户名或密码错误')

 if __name__ == '__main__':

     app.run()


2.tmplates目录
login.html

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

</head>

<body>

    <h1>用户登录</h1>

    <form method="post">

        <input type="text" name="user">

        <input type="text" name="pwd">

        <input type="submit" name="登录">{{error}}

    </form>

</body>

</html>

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

</head>

<body>

    <h1>用户列表</h1>

    <table>

        {% for k,v in user_dict.items() %}

        <tr>

            <td>{{k}}</td>

            <td>{{v.name}} {{v['name']}} {{v.get('name')}} </td>

            <td><a href="/detail/{{k}}">查看详细</a></td>

        </tr>

        {% endfor %}

    </table>

</body>

</html>

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

</head>

<body>

    <h1>详细信息</h1>

    <div>

        {{ info.name }}

        {{ info.text }}

    </div>

</body>

</html>

巴特西

Flask项目之login提交

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