How to handle the situation after prehandle returns false?

After prehandle returns false, the following processing steps can be carried out:

1. Depending on the specific business requirements, determine whether error handling is needed or if redirection to another page is necessary.
2. If error handling is needed, relevant error handling logic can be implemented in the prehandle method, such as sending error messages to the front end or logging error messages.
3. If you need to navigate to a different page, you can use the response.sendRedirect() method to redirect the request to the specified page.
4. If there is no need for error handling or redirection to another page, you can simply return false and handle the corresponding logic in the controller method.
5. You can return specific error messages or perform other actions in the controller method.
6. Note: If preHandle returns false, postHandle and afterCompletion methods will not be executed.

It is necessary to determine how to handle the case of prehandle returning false based on specific business requirements and code logic.