Question

您好我对flask和python是新手，我尝试重定向我的脚本转到something.html，因为它是一个404我决定运行一个hello world并且没有工作。

未找到

在服务器上找不到请求的URL。如果您手动输入了URL，请检查拼写，然后重试。

from flask import Flask
from flask import request
from flask import url_for
from flask import redirect
from flask_sqlalchemy import SQLAlchemy

app = Flask(__name__)
app.debug = True
app.config['SQLALCHEMY_DATABASE_URI']=         'postgre://postgres:*****@localhost/web'
db = SQLAlchemy(app)

class Rent(db.Model):
id = db.Column(db.Integer, primary_key=True)
email = db.Column(db.String(200) , unique=True)
sug1 = db.Column(db.String(200) , unique =True)
sug2 = db.Column(db.String(200) , unique = True)
sug3 = db.Column(db.String(200), unique = True)



def __init__ (self,email,sug1,sug2,sug3):
    self.email = email
    self.sug1 = sug1
    self.sug2 = sug2
    self.sug3 = sug3


def __repr__(self):
    return '<User %>' % self.email


    @app.route('/hello')
    def index():
        return "Hello"



@app.route('/resumo', methods=['POST'])
def pesquisa():
    rent = Rent(request.form['email'],request.form['sug1'],request.form['sug2'],request.form['sug3'])
    db.session.add(rent)
    db.session.commit()
    return redirect(url_for('index')) 

if __name__ == "__main__":
        app.run(port=5500)

Answer 1

如果您的代码类似于显示代码缩进问题的代码，则代码应如下所示。

from flask import Flask
from flask import request
from flask import url_for
from flask import redirect
from flask_sqlalchemy import SQLAlchemy

app = Flask(__name__)
app.debug = True
app.config['SQLALCHEMY_DATABASE_URI'] = 'postgre://postgres:*****@localhost/web'
db = SQLAlchemy(app)

class Rent(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(200) , unique=True)
    sug1 = db.Column(db.String(200) , unique =True)
    sug2 = db.Column(db.String(200) , unique = True)
    sug3 = db.Column(db.String(200), unique = True)


    def __init__ (self,email,sug1,sug2,sug3):
        self.email = email
        self.sug1 = sug1
        self.sug2 = sug2
        self.sug3 = sug3

    def __repr__(self):
        return '<User %>' % self.email


@app.route('/hello')
def index():
    return "Hello"


@app.route('/resumo', methods=['POST'])
def pesquisa():
    rent = Rent(request.form['email'],request.form['sug1'],request.form['sug2'],request.form['sug3'])
    db.session.add(rent)
    db.session.commit()
    return redirect(url_for('index')) 

if __name__ == "__main__":
        app.run(port=5500)

Flask没有找到/ -404的根

1 个答案: