HOW TO SPECIFY AN ACTION WITH A PARAMETER

["Danieleippoliti@libero.it" <Da...@libero.it>]

hello everybody,
my need would be to click a link in my web page,
and to associate a variable parameter to it, 
giving the possibility to the action java code to
recognize the parameter string and compute a logic
depending on its value; to be more clear, i visualize
a dinamyc number of links, one for each  id reflecting a
DB query computed before to obtain the id value  list, and thus, i would like to use this id as a parameter for the same  action for every link; tha action should use the id parameter to compute a second query, with the id used as a key-field.

How to specify the invocation of an action passing a parameter? i mean, how to invoke it via html, and how to
read the parameter via action java code? 

Thanks a lot for every answer,
Marco and Daniele


---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org

Re: HOW TO SPECIFY AN ACTION WITH A PARAMETER

[Ralf Fischer <th...@googlemail.com>]

On Tue, Apr 15, 2008 at 11:33 AM, Danieleippoliti@libero.it
<Da...@libero.it> wrote:
> hello everybody,
>  my need would be to click a link in my web page,
>  and to associate a variable parameter to it,
>  giving the possibility to the action java code to
>  recognize the parameter string and compute a logic
>  depending on its value; to be more clear, i visualize
>  a dinamyc number of links, one for each  id reflecting a
>  DB query computed before to obtain the id value  list, and thus, i would like to use this id as a parameter for the same  action for every link; tha action should use the id parameter to compute a second query, with the id used as a key-field.

This is all what web applications are about, don't you think? :-)

>  How to specify the invocation of an action passing a parameter? i mean, how to invoke it via html, and how to
>  read the parameter via action java code?

You don't need to "read" parameters passed like in plain servlets,
they're injected into your action when it has the appropriate
properties (setter/getter). Take a look at the bootstrap section[1]
from the struts tutorials[2] on the homepage as a starting point, and
take a look at the showcase app, it should have tons of examples for
this.

Cheers,
-Ralf

[1] http://struts.apache.org/2.0.11.1/docs/bootstrap.html
[2] http://struts.apache.org/2.0.11.1/docs/tutorials.html

---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org