[support] I would like to be able within a Drupal module's hook do an ajax call to a Java Servlet.

[John Mitchell]

I am trying to make this as simple as possible:

As an example (listed below) I have a javascript ajax call to a java
servlet within my existing Apache Tomcat web application not Drupal.
All that would need to be modified would that the URL have to be the
full path.

Is their a way within Drupal to embed a javascript call similar to the
one listed below?

Thanks,

John

<script type = "text/javascript">
function download(link){
      var email = document.getElementById('email');
      var xmlHttpReq = new XMLHttpRequest();
      var url = 'ecommerce?command=serve&name=' + link + '&email=' +
email.value;
      xmlHttpReq.open('post', url, true);
      xmlHttpReq.onreadystatechange = function() {
            if (xmlHttpReq.readyState != 4)  {
                  return;
            }
            else {
                  var responseText = xmlHttpReq.responseText;
                  return false;
            }
      }
      xmlHttpReq.send(null);
}
</script>



On 4/15/10, sumeet pareek <positivecharge at gmail.com> wrote:
> Does this help - http://drupal.org/node/44895 ?
>
> On Thu, Apr 15, 2010 at 3:43 PM, John Mitchell <mitchelljj98 at gmail.com>
> wrote:
>> Let me rephrase my question: I currently within the same server have
>> Apache/Drupal and Apache Tomcat/Java.  I would like to be able within
>> a Drupal module's hook do an ajax call to a Java Servlet.
>>
>> How would I do this within Drupal version 6?
>>
>> For future reference how would I do this within Drupal version 7?
>>
>> Thanks,
>>
>> John
>>
>> On 4/14/10, Seth Freach <sfreach at gmail.com> wrote:
>>> John Mitchell wrote:
>>>> How would I do an ajax call within my own custom module?
>>>>
>>>> Thanks,
>>>>
>>>> John
>>>>
>>>>
>>> You will probably need 2 menu items:
>>>  - The first to define the page that will be the ajax client.  Ie, the
>>> url of the page that this all happens on, a regular drupal page that has
>>> called drupal_add_js() to add some JS code that will do a $.ajax({...});
>>> call (or other jquery asynchronous call).  This menu item might not be
>>> needed though if the JS is added in a block, or inserted via
>>> hook_form_alter or hook_nodeapi, etc.
>>>  - The second menu item will define the ajax server.  It should be
>>> 'type'=>MENU_CALLBACK and have the appropriate access checks defined as
>>> well.  The callback function associated with this path should, instead
>>> of returning themed output, end with: drupal_json(array(...)); exit();
>>> where the array(...) is an associative array that you want to hand back
>>> to the calling page in JSON format.
>>>
>>> If you're doing this for D7, look at:
>>> http://api.drupal.org/api/drupal/developer--examples--ajax_example--ajax_example.module/7
>>>
>>> Seth
>>> --
>>> [ Drupal support list | http://lists.drupal.org/ ]
>>>
>>
>>
>> --
>> John J. Mitchell
>> --
>> [ Drupal support list | http://lists.drupal.org/ ]
>>
>
>
>
> --
> Cheers
> Sumeet Pareek
> --
> [ Drupal support list | http://lists.drupal.org/ ]
>


-- 
John J. Mitchell