在POST成功后，您应始终进行重定向，以避免两次提交的任何问题(例如，如果用户按下Refresh).但是没有什么能阻止您重定向回同一页面.

You should always redirect after a successful POST, to avoid any issues with double submissions (if the user presses Refresh, for example). But there's nothing to stop you redirecting back to the same page.