How to explain struts work flow
Answer Posted / madhu
1) A request comes in from a Java Server Page into the
ActionServlet.
2) The ActionServlet having already read the
struts-config.xml file, knows which form bean
relates to this JSP, and delegates work to the validate
method of that form bean.
3) The form bean performs the validate method to determine
if all required fields have been entered, and performs
whatever other types of field validations that need to be
performed.
4) If any required field has not been entered, or any field
does not pass validation, the form bean generates
ActionErrors, and after checking all fields returns back to
the ActionServlet.
5) The ActionServlet checks the ActionErrors that were
returned from the form bean’s validate method to determine
if any errors have occurred. If errors have occurred, it
returns to the originating JSP displaying the appropriate
errors.
6) If no errors occurred in the validate method of the form
bean, the ActionServlet passes control to the appropriate
Action class.
7) The Action class performs any necessary business logic,
and then forwards to the next appropriate action (probably
another JSP).
Is This Answer Correct ? | 167 Yes | 14 No |
Post New Answer View All Answers
What is the use of interceptor?
What is the use of struts config xml file?
What are construction struts?
How do struts work?
What are apache struts?
Is there a particularly good ide to use with struts?
What is actioninvocation?
What is a custom tag?
Explain the difference between plain-validator and field-validator in struts?
Which interceptor is responsible for file upload support?
Which library is provided by struts for form elements like check boxes, text boxes etc?
What is actionservlet?
What are the steps required for setting up validator framework in struts?
List some struts tag libraries?
What is the purpose of @conversion?