Flask URL Route: Route Several URLs to the same function

问题

I am working with Flask 0.9.

Now I want to route three urls to the same function:

/item/<int:appitemid>
/item/<int:appitemid>/ 
/item/<int:appitemid>/<anything can be here>

The <anything can be here> part will never be used in the function.

I have to copy the same function twice to achieve this goal:

@app.route('/item/<int:appitemid>/')
def show_item(appitemid):

@app.route('/item/<int:appitemid>/<path:anythingcanbehere>')
def show_item(appitemid, anythingcanbehere):

Will there be a better solution?

回答1:

Why not just use a parameter that can potentially be empty, with a default value of None?

@app.route('/item/<int:appitemid>/')
@app.route('/item/<int:appitemid>/<path:anythingcanbehere>')
def show_item(appitemid, anythingcanbehere=None):

回答2:

Yes - you use the following construct:

@app.route('/item/<int:appitemid>/<path:path>')
@app.route('/item/<int:appitemid>', defaults={'path': ''})

See the snippet at http://flask.pocoo.org/snippets/57/

来源：https://stackoverflow.com/questions/14023664/flask-url-route-route-several-urls-to-the-same-function