FacesContext redirect with POST parameters

Question

I need to redirect page into external site with POST parameters, but I cannot use vanilla HTML

like it is explained here:

JSF co

Answer 1

Try something like this:

JAVASCRIPT:

function redirect() {
    document.getElementById("mySubmitButton").submit();
}

XHTML:

<h:form>
     <span onclick="javascript:redirect()" class="linkClass">REDIRECT</span>
</h:form>

<div style="display:none:"> <!-- If you want it hidden -->
    <form action="http://external/myplace.html" method="post"> 
        <input type="hidden" value="value1"></input>
        <input type="submit" id="mySubmitButton"</input>
    </form>
</div>

EDIT: Added another test.

PASSING DYNAMIC PARAMETER:

In this example we assume that we are always going to send a value.

JAVASCRIPT:

function redirect(dynamicValue) {
    document.getElementById("dynamicField").value = dynamicValue;
    document.getElementById("mySubmitButton").submit();
}

XHTML:

<h:form>
     <span onclick="javascript:redirect('myValue')" class="linkClass">REDIRECT</span>
</h:form>

<div style="display:none:"> <!-- If you want it hidden -->
    <form action="http://external/myplace.html" method="post"> 
        <input id="dynamicField" type="hidden" value=""></input>
        <input type="hidden" value="value1"></input>
        <input type="submit" id="mySubmitButton"</input>
    </form>
</div>