Primefaces p:remoteCommand parameter always null

Question

I am trying to pass a parameters with

p:remoteCommand

Unfortunately when I retrieve the paramer in my bean method I always get null.

Is there anything wrong with my code?

Here is my page code:

<a href="#" onclick="rc([{'d':'01'}])">01</a>

<p:remoteCommand name="rc" update=":myform:messages" actionListener="#{mybean.changedaybar}" />

and this is the bean method:

public void changedaybar() {
            Map<String, String> params = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap();
            String param = params.get("d");

            FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_INFO, "Executed"+param, "Using RemoteCommand."));
    }

score 3 · Accepted Answer · edited Jun 20 '20 at 09:12

3

Which PrimeFaces version are you using? It's important because the way to pass parameters from a JavaScript function to a p:remoteCommand has changed in PrimeFaces 3.3.

You will see the correct syntax in the following post: https://stackoverflow.com/a/18510102/2118909 but for your convenience here is the summary.

From PrimeFaces 3.3

Passing Parameters

Remote command can send dynamic parameters in the following way;

increment([{name:'x', value:10}, {name:'y', value:20}]);

<a href="#" onclick="rc([{name: 'd', value:'01'}])">01</a>

Before PrimeFaces 3.3

Passing Parameters

Remote command can send dynamic parameters in the following way;

increment({param1:'val1', param2:'val2'});

<a href="#" onclick="rc({d:'01'})">01</a>

edited Jun 20 '20 at 09:12

Community

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answered Jun 11 '15 at 08:18

Mathieu Castets

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I am using 5.2. Anyway your example was useful. – Gyonder Jun 11 '15 at 08:33
Please just mark it as a duplicate if it is... – Kukeltje Jun 11 '15 at 09:01
I don't think it is. My question was referrred to a particular case. The answered really helped me contrary to the other one, which I had seen but didn't find useful. – Gyonder Jun 11 '15 at 13:54
Hmmmm imo it contians all relevant information. Maybe you did not understand the relation. As posted in the answer, it is a summary of that other post, but yes in the context of your question. – Kukeltje Jun 11 '15 at 15:02

Primefaces p:remoteCommand parameter always null

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