How to Pass Parameters to p:remoteCommand in JavaScript (PrimeFaces 3.3 )

Passing Parameters to p:remoteCommand from JavaScript

PrimeFaces 3.3 or Newer

PrimeFaces 3.3 introduces a new syntax for passing parameters to p:remoteCommand:

<code class="javascript">increment([{name:'x', value:10}, {name:'y', value:20}]);</code>

This syntax allows you to pass multiple values for the same parameter name. For example, you could have the following JavaScript code:

<code class="javascript">functionName([{name:'foo', value:'one'}, {name:'foo', value:'two'}, {name:'foo', value:'three'}]);</code>

In your backing bean, you could access these parameters using the following annotations:

<code class="java">@ManagedProperty("#{paramValues.foo}")
private String[] foos;</code>

PrimeFaces 3.2 or Older

For PrimeFaces 3.2 and older, the syntax for passing parameters to p:remoteCommand is as follows:

<code class="javascript">increment({param1:'val1', param2:'val2'});</code>

In your backing bean, you could access these parameters using the following annotations:

<code class="java">@ManagedProperty("#{param.param1}")
private String param1;

@ManagedProperty("#{param.param2}")
private String param2;</code>

Note

In all cases, you can also access the parameters using the FacesContext object:

<code class="java">Map<String, String> params = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap();
String param1 = params.get("param1");
String param2 = params.get("param2");</code>

Related Articles

• [Dependency Inject Request Parameter with CDI and JSF2](https://www.primefaces.org/docs/javascript/dependency_injection.html)
• [How to Invoke a JSF Managed Bean on a HTML DOM Event Using Native JavaScript?](https://www.primefaces.org/docs/javascript/jsf_behavior_in_js.html)

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