I would like to have a user's name as a part of a URL, e.g. mysite.com/username. This should redirect to the user profile. I use Profile 2 and Pathauto, but I am not sure how to do this.
With pathauto, you just have to configure user paths with a user token, e.g. [user:name].
Pathauto pattern of [user:name] under User paths should do the trick.
来源：https://stackoverflow.com/questions/5961990/username-as-a-path