擅长:python、mysql、java
<p>推荐的解决方案是DNS级重定向(参见<a href="https://devcenter.heroku.com/articles/avoiding-naked-domains-dns-arecords#subdomain_redirection" rel="noreferrer">heroku help</a>)。在</p>
<p>或者,您可以注册<code>before_request</code>函数:</p>
<pre><code>from urlparse import urlparse, urlunparse
@app.before_request
def redirect_www():
"""Redirect www requests to non-www."""
urlparts = urlparse(request.url)
if urlparts.netloc == 'www.stef.io':
urlparts_list = list(urlparts)
urlparts_list[1] = 'stef.io'
return redirect(urlunparse(urlparts_list), code=301)
</code></pre>
<p>这将使用“http301永久移动”响应将所有www请求重定向到非www。在</p>