Passing Parameter from servlet to html

[sakshi_rawat]

I need to create two components fro registration. On first component I should enter email address in textbox. If this email is already registered, I have to give already exists message. Otherwise it should go to second component and let the user fill his complete detail and the value of email should be taken from first component. Can anyone please help me on this.

[stevec2515680]

This requirement can be solved using JQuery: 

https://www.formget.com/jquery-registration-form/

You can easily use JQuery with AEM. See: 

https://helpx.adobe.com/experience-manager/using/integrating-jquery-framework-cq.html

[kautuk_sahni · Accepted solution]

Hi, 

You can pass the data from servlet to JSP/Sightly (not HTML). 

OSGI as Service

Link:- https://helpx.adobe.com/experience-manager/using/first-osgi.html

// Here we are calling the function on OSGI Service from JSP

    <% 
    com.adobe.cq.KeyService keyService = sling.getService(com.adobe.cq.KeyService.class);
    keyService.setKey(10) ; 
    String ff = keyService.getKey();  
    %>

Link:- https://helpx.adobe.com/experience-manager/using/sightly_multifield.html

//Sightly fetching information from the OSGI

    <div data-sly-use.mbeanObj="com.aem.core.services.TouchMultiComponent">

        <p>

            <div data-sly-test="${!mbeanObj.mBean}">Add values in Dialog</div>

            <div data-sly-test="${mbeanObj.mBean}" data-sly-list.items="${mbeanObj.mBean}">

                <h3>${items.dashboard}</h3>

                <div data-sly-list.itemsList="${items.items}">

                    <p><b>page:</b> ${itemsList.page}</p>

                    <p><b>path:</b> ${itemsList.path}</p>

                </div>

              </div>

        </p>

    </div>

Link:- https://helpx.adobe.com/experience-manager/using/using-ajax-requests-display-cq.html

//Ajex

How can we achieve it:-

1. Calling OSGi fucntion directally.

2. AJEX call (doGet/doPost)

3.Using JS to get value.

Can you exactly tell us what would you like to do ?

I hope this would be of some help to you.

Thanks and Regards

Kautuk Sahni