Struts notes 02-action and action classes

1. Action

The action represents a STRUTS2 request!

2. Action Class

The class that can handle the STRUTS2 request.

(1) The name of the attribute needs to be consistent with the JavaBeans attribute.

The type of the property can be any type. Data conversions from string to non-string (base data type) can occur automatically.

(2) must have a constructor with no parameters

(3) Provide at least one method for struts to invoke when executing this action

(4) The same action class can contain more than one action method.

(5) Struts2 will create a new action instance for each HTTP request, that is, the action is not singleton and is thread safe.

Struts notes 02-action and action classes