制作首页的显示列表。
1. 在首页添加显示问答的列表，并定义好相应的样式。
无序列表
<ul >
<li>Coffee</li>
<li>Tea</li>
<li>Milk</li>
</ul>
2. 用字典向index.html传递参数。
index.py
import config from flask import Flask, render_template, url_for, redirect, request,session from flask_sqlalchemy import SQLAlchemy from functools import wraps from datetime import datetime app = Flask(__name__) app.config.from_object(config) db = SQLAlchemy(app) class User(db.Model): __tablename__ = 'user' id = db.Column(db.Integer, primary_key=True, autoincrement=True) username = db.Column(db.String(20), nullable=False) password = db.Column(db.String(20), nullable=False) nickname = db.Column(db.String(20)) class Question(db.Model): __tablename__='question' id=db.Column(db.Integer,primary_key=True,autoincrement=True) title=db.Column(db.String(100),nullable=False) detail=db.Column(db.Text,nullable=False) creat_time=db.Column(db.DateTime,default=datetime.now) author_id=db.Column(db.Integer,db.ForeignKey('user.id')) author=db.relationship('User',backref=db.backref('question')) #db.create_all() @app.route('/') def shouye(): context={ 'question':'hahahahahahahahahaa' } return render_template('shouye.html',**context) @app.route('/zhuce',methods=['GET','POST']) def zhuce(): if request.method == 'GET': return render_template('zhuce.html') else: username = request.form.get('username') password = request.form.get('password') nickname = request.form.get('nickname') user1 = User.query.filter(User.username == username).first() if user1: return 'username existed' else: user1 = User(username=username, password=password, nickname=nickname) db.session.add(user1) db.session.commit() return redirect(url_for('denglu')) @app.route('/denglu',methods=['GET','POST']) def denglu(): if request.method == 'GET': return render_template('denglu.html') else: username = request.form.get('username') password = request.form.get('password') user=User.query.filter(User.username == username).first() if user: if user.password == password: session['user'] = username session.permanent = True return redirect(url_for('shouye')) else: return 'password error' else: return 'username is not existed' @app.route('/logout/') def logout(): session.clear() return redirect(url_for('shouye')) def log(func): @wraps(func) def wrapper(*args,**kwargs): if session.get('user'): return func(*args,**kwargs) else: return render_template('denglu.html') return wrapper @app.route('/neirong',methods=['GET','POST']) @log def fankui(): if request.method=='GET': return render_template('fankui.html') else: title=request.form.get('title') detail=request.form.get('detail') author_id=User.query.filter(User.username==session.get('user')).first().id question=Question(title=title,detail=detail,author_id=author_id) db.session.add(question) db.session.commit() return redirect(url_for('shouye')) @app.context_processor def mycontext(): usern=session.get('user') if usern: return {'username':usern} else: return {} if __name__ == '__main__': app.run(debug='True')
shouye.html
<!DOCTYPE html> <html lang="en"> <head> {% extends "text.html" %} <meta charset="UTF-8"> <link href="https://cdn.bootcss.com/bootstrap/4.0.0-beta/css/bootstrap.css" rel="stylesheet"> <link href="https://cdn.bootcss.com/font-awesome/4.7.0/css/font-awesome.css" rel="stylesheet"> <title>首页</title> </head> <body> {% block shouye %} <form class=""> <ul class="list-group list-group-item-light p-3 border border-secondary rounded-top" style="margin-top: 6.2% ; margin-left: 25%;width: 50%; "> <li class="list-group-item rounded m-1" style="height: 10ch"> <span> <a href="#">username</a> <a href="#">title</a> <span class="">creat_time</span> <p>detail{{ question }}</p> </span> </li> </ul> </form> {% endblock %} </body> </html>
