Basic Struts question

[RamRod]

Assuming I have the following lines in a JSP

<td>
<html:submit property="AProperty" value="AValue"/>
<html:submit property="BProperty" value="BValue"/>
</td>

I now wish to discern, in my one Action class, whether the button
associated with AValue or the Button associated with BValue was
pressed. How is this accomplished?

I assumed that one of the 4 elements passed to the Action class would
reveal this value - most likely the -form- object or the -mapping-
object - this does not appear to be the case ...

public ActionForward execute(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)

Any ideas ?

Thanks.

 

[Andreas Wollschlaeger]

Assuming I have the following lines in a JSP

<td>
<html:submit property="AProperty" value="AValue"/>
<html:submit property="BProperty" value="BValue"/>
</td>

I now wish to discern, in my one Action class, whether the button
associated with AValue or the Button associated with BValue was
pressed. How is this accomplished?

I assumed that one of the 4 elements passed to the Action class would
reveal this value - most likely the -form- object or the -mapping-
object - this does not appear to be the case ...

public ActionForward execute(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)

Any ideas ?

Thanks.

The forms AProperty resp. BProperty value should be set to "AValue"
resp. "BValue".

I used several <html:submit>'s referring the _same_ property and then
something like this in execute();

if("AValue".equals(getAProperty())
{

}
else if ("BValue".equals(getAProperty())
{

}
....



HTH
Andreas

 

[Matt Parker]

The forms AProperty resp. BProperty value should be set to "AValue"
resp. "BValue".

I used several <html:submit>'s referring the _same_ property and then
something like this in execute();

if("AValue".equals(getAProperty())
{

}
else if ("BValue".equals(getAProperty())
{

}
...

Really you should give the button a name attribute for this because the
value of the button will change with internationalization:-

<html:submit name="AButton" property="AProperty" value="AValue"/>
<html:submit name="BButton" property="BProperty" value="BValue"/>

The name will appear as a request parameter so:-

if (request.getParameter("AButton") != null)
{
System.out.println("AButton pressed");
}
else if (request.getParameter("BButton") != null)
{
System.out.println("BButton pressed");
}

Matt