使用藍圖時未找到燒瓶URL

Question

這真的很奇怪，但我正面臨着這個問題。一切正常，我幾乎完成了應用程序，但突然間它停了下來。我已經隔離了代碼，我意識到，當我註冊藍圖並在路線上使用它時，它無法返回說找不到URL。以下是隔離代碼：

from flask import Flask, render_template, Blueprint 

app = Flask(__name__) 

home = Blueprint('home', __name__, static_folder='static', template_folder='template') 
app.register_blueprint(home) 


@home.route('/') #<---This one does not work 
# @app.route('/') <--- This one works 
def index(): 
    return "This is the index route." 
    # return render_template('layer.html') 


if __name__ == '__main__': 
    app.run() 

Answer 1

在定義路由後移動app.register_blueprint(home)。

from flask import Flask, Blueprint 

app = Flask(__name__) 

home = Blueprint('home', __name__, static_folder='static', template_folder='template') 

@home.route('/') 
def index(): 
    return "This is the index route." 

app.register_blueprint(home) 

if __name__ == '__main__': 
    app.run()