The working mechanism of the action class in struts

The action class in struts   All action classes are org.apache.struts.action.Action subclasses. The action subclass should overwrite the Execute () method of the parent class. When the Actionform Bean is created and the form validation passes, the struts framework invokes the Execute () method of the action class. The Execute () method is defined as follows:    public Actionforward execute (actionmapping mapping                         Actionform form,                         HttpServletRequest request,                         HttpServletResponse response) throws IOException, servletexception;    Execute () method contains parameters:   Actionmapping: Contains the configuration information for this action, and corresponds to the      <action> element in the Struts-config.xml file.   Actionform: Contains the user's form data when the struts framework calls the Execute () method,     ActionfoThe data in RM has been validated by the form.   HttpServletRequest: The current HTTP request object.   HttpServletResponse: The current HTTP response object. The Execute () method of the   action class returns the Actionforward object, which contains the request forwarding path information.