Python实战作业-day5
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作业需求：
用户登录注册页面
首页、注册页面、登录页面；后端存储数据是mysql数据库
作业代码:
1 [email protected]~/reboot15/day5/homework$cat app.py 2 #!/usr/bin/env python 3 #coding:utf-8 4 ‘‘‘ 5 作业需求： 6 基于mysql数据库实现用户登录模块，并实现针对于用户信息的增删改查 7 ‘‘‘ 8 9 10 from flask import Flask,render_template,request,redirect 11 import MySQLdb as mysql 12 13 app = Flask(__name__) 14 15 # 连接数据库的固定用语 16 conn = mysql.connect(host=‘127.0.0.1‘,user=‘root‘,passwd=‘123456‘,db=‘rebootye‘,port=3306) 17 conn.autocommit(True) 18 cursor = conn.cursor() 19 20 # 主页并显示当前用户所有的信息 21 @app.route(‘/‘) 22 @app.route(‘/index/‘) 23 def index(): 24 welcome = "Welcome to the page!" 25 sql = "select * from user" 26 cursor.execute(sql) 27 res = cursor.fetchall() 28 return render_template("index.html",welcome=welcome,res=res) 29 30 # 用户登录认证页面 31 @app.route(‘/login/‘,methods=[‘GET‘,‘POST‘]) 32 def login(): 33 if request.method == ‘POST‘: 34 username = request.form.get(‘yourname‘,‘None‘) 35 password = request.form.get(‘yourpasswd‘,‘None‘) 36 sql = ‘select * from user where username=%s and password=%s‘ 37 if cursor.execute(sql,(username,password)): 38 res = "Welcome to login." 39 return render_template("success.html",res=res) 40 else: 41 res = ‘Your username and password is wrong.‘ 42 return render_template("success.html",res=res) 43 else: 44 return render_template("login.html") 45 46 # 用户注册插入数据页面 47 @app.route(‘/register/‘, methods=["GET","POST"]) 48 def register(): 49 if request.method == ‘POST‘: 50 username = request.form.get(‘yourname‘) 51 password = request.form.get(‘yourpasswd‘) 52 repassword = request.form.get(‘reyourpasswd‘) 53 sex = request.form.get(‘sex‘) 54 age = request.form.get(‘age‘) 55 phone = request.form.get(‘phone‘) 56 email = request.form.get(‘email‘) 57 role = request.form.get(‘role‘) 58 if password == repassword: 59 sql = ‘insert into user (username,password,sex,age,phone,email,role) values ("%s","%s","%s","%s","%s","%s","%s")‘ % (username, password,sex,age,phone,email,role) 60 cursor.execute(sql) 61 res = "Congratulations on your registration is success. %s" % username 62 return render_template("success.html",res=res) 63 else: 64 res = "Your username or password is worong." 65 return render_template("success.html",res=res) 66 return render_template("register.html") 67 68 # 用户删除信息页面 69 @app.route(‘/del/‘,methods=[‘GET‘,‘POST‘]) 70 def del_user(): 71 if request.method == ‘GET‘: 72 user_id = int(request.args.get(‘id‘)) 73 sql = ‘delete from user where id =%d‘ % user_id 74 cursor.execute(sql) 75 return redirect(‘/index/‘) 76 77 78 # 用户更新信息页面 79 @app.route(‘/update/‘,methods=[‘GET‘,‘POST‘]) 80 def update_user(): 81 if request.method == ‘GET‘: 82 user_id = int(request.args.get(‘id‘)) 83 return render_template(‘update.html‘,user_id=user_id) 84 if request.method == ‘POST‘: 85 username = request.form.get(‘yourname‘) 86 password = request.form.get(‘yourpasswd‘) 87 repassword = request.form.get(‘reyourpasswd‘) 88 user_id = request.form.get(‘id‘) 89 if password == repassword: 90 sql = ‘update user set password=%s where id =%s‘ %(password,user_id) 91 cursor.execute(sql) 92 return redirect(‘/index/‘) 93 else: 94 return render_template(‘success.html‘,res=‘Your update is failed‘) 95 96 if __name__ == ‘__main__‘: 97 app.run(host=‘0.0.0.0‘,port=1234,debug=True)
前端简单的HTML表单代码:
1 [email protected]~/reboot15/day5/homework/templates$ll 2 total 40 3 -rw-r--r-- 1 guanqing staff 2.1K 8 26 16:09 index.html 4 -rw-r--r-- 1 guanqing staff 501B 8 26 16:09 login.html 5 -rw-r--r-- 1 guanqing staff 958B 8 26 16:09 register.html 6 -rw-r--r-- 1 guanqing staff 203B 8 26 16:09 success.html 7 -rw-r--r-- 1 guanqing staff 412B 8 26 16:09 update.html 8 [email protected]~/reboot15/day5/homework/templates$cat index.html 9 <html> 10 <tittle></tittle> 11 <body> 12 <table align="center" border="1px"> 13 <tr> 14 <td align="center" style="width:120px; height: 21px;" valign="middle">ID</td> 15 <td align="center" style="width:120px; height: 21px;" valign="middle">username</td> 16 <td align="center" style="width:120px; height: 21px;" valign="middle">password</td> 17 <td align="center" style="width:120px; height: 21px;" valign="middle">sex</td> 18 <td align="center" style="width:120px; height: 21px;" valign="middle">age</td> 19 <td align="center" style="width:120px; height: 21px;" valign="middle">phone</td> 20 <td align="center" style="width:120px; height: 21px;" valign="middle">email</td> 21 <td align="center" style="width:120px; height: 21px;" valign="middle">role</td> 22 <td align="center" style="width:120px; height: 21px;" valign="middle">actions1</td> 23 <td align="center" style="width:120px; height: 21px;" valign="middle">actions2</td> 24 </tr> 25 {% for user in res %} 26 <tr> 27 <td align="center" style="width:120px; height: 21px;" valign="middle">{{user[0]}}</td> 28 <td align="center" style="width:120px; height: 21px;" valign="middle">{{user[1]}}</td> 29 <td align="center" style="width:120px; height: 21px;" valign="middle">{{user[2]}}</td> 30 <td align="center" style="width:120px; height: 21px;" valign="middle">{{user[3]}}</td> 31 <td align="center" style="width:120px; height: 21px;" valign="middle">{{user[4]}}</td> 32 <td align="center" style="width:120px; height: 21px;" valign="middle">{{user[5]}}</td> 33 <td align="center" style="width:120px; height: 21px;" valign="middle">{{user[6]}}</td> 34 <td align="center" style="width:120px; height: 21px;" valign="middle">{{user[7]}}</td> 35 <td align="center" style="width:120px; height: 21px;" valign="middle"><a href="/update/?id={{user[0]}}">update</a></td> 36 <td align="center" style="width:120px; height: 21px;" valign="middle"><a href="/del/?id={{user[0]}}">delete</a></td> 37 </tr> 38 {% endfor %} 39 </table> 40 <h1 style="text-align:center">{{welcome}}</h1> 41 <h2 style="text-align:center"><a href="/register/">注册</a>   <a href="/login/">登录</a></h2> 42 </body> 43 </html> 44 [email protected]~/reboot15/day5/homework/templates$cat login.html 45 <html> 46 <tittle></tittle> 47 <body style="text-align:center"> 48 <h1>欢迎登陆</h1> 49 <form action="/login/" accept-charset="UTF-8" method="post"> 50 姓名：<input placeholder="请输入名称" type="text" name="yourname"><br> 51 密码：<input placeholder="请输入密码" type="password" name="yourpasswd"><br> 52 <input type="submit" name="commit" value="登陆"> 53 54 </form> 55 {% if error %} 56 <h3 style="color:red">{{res}} </h3> 57 {% else %} 58 <h3 style="color:red"></h3> 59 {% endif %} 60 </body> 61 62 </html> 63 [email protected]~/reboot15/day5/homework/templates$cat register.html 64 <html> 65 <tittle></tittle> 66 <body style="text-align:center"> 67 <h1>欢迎注册</h1> 68 <form action="/register/" accept-charset="UTF-8" method="post"> 69 姓名：<input placeholder="注册名称" type="text" name="yourname"><br> 70 密码：<input placeholder="设置密码" type="password" name="yourpasswd"><br> 71 密码：<input placeholder="设置密码" type="password" name="reyourpasswd"><br> 72 性别：<input placeholder="填写性别" type="text" name="sex"><br> 73 年龄：<input placeholder="填写年龄" type="text" name="age"><br> 74 手机：<input placeholder="填写手机" type="text" name="phone"><br> 75 邮件：<input placeholder="填写邮件" type="text" name="email"><br> 76 权限：<input placeholder="填写权限" type="text" name="role"><br> 77 <input type="submit" name="commit" value="注册"> 78 79 </form> 80 {% if error %} 81 <h3 style="color:blue">{{error}} </h3> 82 {% else %} 83 <h3 style="color:blue"></h3> 84 {% endif %} 85 </body> 86 87 </html> 88 [email protected]~/reboot15/day5/homework/templates$cat success.html 89 <html> 90 <tittle></tittle> 91 <body style="text-align:center"> 92 <h1 style="color:red">{{res}} </h1> 93 <h2 style="text-align:center"><a href="/index">返回首页</a></h2> 94 </html> 95 [email protected]~/reboot15/day5/homework/templates$cat update.html 96 <html> 97 <title></title> 98 <body style="text-align:center"> 99 <form action="/update/" accept-charset="UTF-8" method="POST"> 100 <input type="hidden" name="id" value="{{user_id}}"> 101 <li>姓名: <input type="text" name="yourname"> </li> 102 <li>密码: <input type="password" name="yourpasswd"> </li> 103 <li>密码: <input type="password" name="reyourpasswd"></li> 104 <input type="submit" value="更新"> 105 </form> 106 </body>
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