* Redirect features: redirect
1. address bar changes
2. redirect resources can access other sites (servers)
3. Redirection requests. You can not use the request object to share data
* forwarding features: Forward
1. forwarding address bar path unchanged
2. Forwarding can only access resources in the current server
3. The forward was a request, the request object can be used to share data
Redirect pages load relatively more than the traffic forwarding, so the user experience is relatively little faster forward