Different INPUT.jsp in DispatchAction

[vicky kumar]

Hi All,
How can I have different INPUT parameter value for my Dispatch action. As DispatchAction can contain multiple methods, I want to connect various methods to different input JSP (especially for errors). Please advice.

Cheers
Vicky

[Nicholas Cheung]

In DispatchAction, the methods called will be depends on the Form parameter *method*.

For example, if you have a form parameter *method* with value *xxx*, you will then need to have a method:

public ActionForward xxx(ActionMapping mapping, Form form, HttpServletRequest request, HttpServletResponse response)

And this method will be called whenever the method value equals to "xxx".

In the JSP, you can use JavaScript to check, when the form is submitted, what are your input values, and set the method value by:

function submit() {
  if (input == 'aaa') {
      document.form.method.value="xxx";
  } else if (input == 'bbb') {
      document.form.method.value="yyy";
  } else {
      document.form.method.value="zzz";
  }
 
  document.form.submit();
}

And the corresponding methods xxx, yyy and zzz will be called accordingly.

Nick

[ May 19, 2004: Message edited by: Nicholas Cheung ]
[ May 19, 2004: Message edited by: Nicholas Cheung ]

[vicky kumar]

Hi Nicholos,
May be you got me wrongly. I need to direct the user to differenr error pages depending on the method executed in DispatchAction. I believe "input" parameter in action element works as error JSP also. But I want the JSP, that belongs to the method executed" to work as Input JSP also. Is it conceptually good to have different Input jsps for a given Dispatch action.

Vicky

[Nicholas Cheung]

I need to direct the user to differenr error pages depending on the method executed in DispatchAction.

You can define various *forward* actions inside the struts.xml and use the method findForward() to forward the request to various *error handling* actions.

public ActionForward method(.....) {
  ...
  if (XXX error) {
    return mapping.findForward("xxx_error");
  } else if (YYY error) {
    return mapping.findForward("yyy_error");
  }
}

And the struts.xml looks like:

  <action path="/xxxAction" 
          type="abc.xxxAction" 
          parameter="success"
          name="xxxForm" 
          validate="true" 
          input="/xxx.jsp" 
          scope="request">
      <forward name="success" path="/success.jsp"/>
      <forward name="xxx_error" path="/xxx_error.jsp"/>
      <forward name="yyy_error" path="/yyy_error.jsp"/>
  </action>

Is it conceptually good to have different Input jsps for a given Dispatch action.

It depends, but I am not sure whether it really needs to have such configuration.

Nick

[sreenath reddy]

Hi
See why r u so bothered .....in ur different methods give differernt forward strings and give jsps what u need in ur action tag with multiple forwards

is there any issue in doing this ??

[vicky kumar]

No Sreeni. That's a simple and best solution I think.

Thanks Srini and Nicolas..

Cheers
Upen