<ul class="list-group"><li class="list-group-item" ><a  class="author" href="">{{ user }}</a><br><a class="title"  href="">标题</a><br><span >发布时间 </span><p class="abstract">文章内容 </p></li></ul>

from flask import Flask, render_template,redirect,url_for,request,session
from flask_sqlalchemy import SQLAlchemy
from functools import wraps
from datetime import datetimeimport configapp = 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)create_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 index():#用字典向index.html传递参数context={'questions':'Why so lonely'}return render_template('index.html',**context)@app.route('/login/',methods=['GET','POST'])
def login():if request.method == "GET":return render_template("login.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'] = usernamereturn redirect(url_for('login'))else:return '密码错误'else:return '用户名不存在'@app.context_processor
def mycontext():username = session.get('user')if username:return{'username':username}else:return{}@app.route('/logout/')
def logout():session.clear()return redirect(url_for('base'))@app.route('/regist/',methods=['GET','POST'])
def regist():if request.method == 'GET':return render_template("regist.html")else:username = request.form.get("username")password = request.form.get("password")user = User.query.filter(User.username == username).first()if user:return 'username existed.'else:user = User(username=username, password=password)db.session.add(user) #数据库，添加操作
            db.session.commit()return redirect(url_for('login'))#发布前需要登录，定义装饰器
def loginFirst(func):@wraps(func)def wrapper(*args,**kwargs):if session.get('user'):return func(*args,**kwargs)else:return redirect(url_for('login'))return wrapper@app.route('/question/',methods=['GET','POST'])
@loginFirst
def question():if request.methof=='GET':return render_template('question.html')else:title=request.form.get('title')detail=request.form.get('detail')author_id=User.query.filter(User.username==session.get('user')).first().idquestion=Question(title=title,detail=detail,author_id=author_id)db.session.ass(question)db.session.commit()return redirect(url_for('index'))if __name__ == '__main__':app.run(debug=True)import osSQLALCHEMY_DATABASE_URI = 'mysql+pymysql://root:@127.0.0.1:3306/mis1201?charset=utf8'
SQLALCHEMY_TRACK_MODIFICATIONS = FalseSECRET_KEY = os.urandom(24)