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sending sling model values to servlet in aem 6.5

Forum|Forum|4 years ago
December 1, 2021
5 replies
4783 views

Can you please share the suggestion for the below scenario:

Have created sling model to read multifield values, need to send these values to a servlet kindly suggest

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Best answer by Kiran_Vedantam

Hi All,

There are certain use-cases where we would like to access the values stored in particular components in servlet. This might or might not be the use case for @kattakiran1990

@kattakiran1990 to achieve this, use the below code

Resource resource = resourceResolver.getResource("/content/we-retail/language-masters/en/user/jcr:content/root/responsivegrid/user");
UserModel model = resource.adaptTo(UserModel.class);

Hope this helps!

Thanks,

Kiran Vedantam.

manikanthar1295

Level 5

Hi @kattakiran1990

In Sling servlet you can use below code and try

Model model =resourceResolver.adaptTo(model.class)

then u use the getter method as you need.

Regards

Manikantha R

Siva_Sogalapalli

Community Advisor

@kattakiran1990 What is the reason you want to pass values from sling model to servlet ?

If you really want to use servlet, as @manikanthar1295 suggested, you can try below using request / resource resolver.

SlingModel model = request.adaptTo(SlingModel.class);

Or

SlingModel model = resourceResolver.adaptTo(SlingModel.class);

K

kattakiran1990Author

I am using sling model to get a multifield values. Now i need to send those as parameters to my servlet.

kindly suggest

Siva_Sogalapalli

Community Advisor

Still it's not clear to me the reason why you want to use servlet, but you can simply try with osgi service and achieve similar:

1. Create Interface:

public interface ISampleService {
     testMethod(Strig args);
}

2. Create service:

@Component(service = ISampleService.class,immediate=true)

public class SampleService {
testMethod(Strig args){

//write logic

}
}

3. Call OSGI service from sling model:

public class SlingModel{

@OSGiService
private ISammpleService sampleService;

@PostConstruct
protected void init() {

     sampleService.testMethod(pass required arguments here);

}

}

Hope this helps you.

Anmol_Bhardwaj

Community Advisor

I would do something like this:

HTL:

 <div data-sly-list.pathlist="${resource.getChildren}">
		<div data-sly-test="${pathlist.name == 'multiField'}">   
			<div data-sly-list.multiplePathList= "${pathlist.getChildren}">
				<input type="hidden" id="multiplePathList" value="${multiplePathList.propName}"></input>
			</div>		
		</div>
	</div>

JS:

let multiFieldValue = document.QuerySelector("#multiplePathList").value;
var url = "servletPath?" + "multiplePathList=" + multiplePathList;

Java:

String[] multiplePathList = StringUtils.isNotBlank(request.getParameter("multiplePathList")) ? request.getParameter("multiplePathList").split(",") : null;

arunpatidar

Community Advisor

Hi,

you need to get all param in javascript and then you can sepaarte them and send to servlet, I would suggest use post request to send all as a single param with multivalues

const pathItems = userList.querySelectorAll("#multiplePathlist");
let values = "";

pathItems.forEach(function(userItem) { 
  values = values + item.value + ","; 
});

Arun Patidar

VeenaVikraman

Community Advisor

@kattakiran1990 ,

Could you please help me understand what is the usecase you are trying to achieve ? I am not understanding the requirement to send the values from a Sling Model to Servlet ?

Kiran_Vedantam

Accepted solution

Community Advisor

Hi All,

There are certain use-cases where we would like to access the values stored in particular components in servlet. This might or might not be the use case for @kattakiran1990

@kattakiran1990 to achieve this, use the below code

Resource resource = resourceResolver.getResource("/content/we-retail/language-masters/en/user/jcr:content/root/responsivegrid/user");
UserModel model = resource.adaptTo(UserModel.class);

Hope this helps!

Thanks,

Kiran Vedantam.

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