How to refresh page in JSF on selectOneMenu selection?

问题

I have a page containing a PrimeFaces (2.2.1) Editor component, a Refresh button and a selectOneMenu, whose selection affects the contents of the Editor, as follows:

<p:editor id="uploadedText" value="#{facilityDataUploadBean.uploadedText}"
          width="600" height="180" disabled="true" controls="" />
<h:commandButton value="Refresh" immediate="true" />
<h:selectOneMenu id="skipLines" styleClass="dropdown"
                 value="#{facilityDataUploadBean.skipLines}">
    <f:selectItems value="#{facilityDataUploadBean.skipLinesList}" />
    <f:ajax listener="#{facilityDataUploadBean.importParameterChanged}" />
</h:selectOneMenu>

facilityDataUploadBean.importParameterChanged updates facilityDataUploadBean.uploadedText. After changing the selectOneMenu value, the operator presses the Refresh button to refresh the page, including the contents of the p:editor. (I cannot simply refresh the p:editor using AJAX, because it doesn't re-render correctly, at least in PF 2.2.1.)

It seems like I ought to be able to accomplish the page refresh automatically when the selectOneMenu value is changed, but I've been unable to come up with a combination of attributes and events that will do that. I've tried various combinations of onchange="submit();", immediate="true" and valueChangeListener on the selectOneMenu, as well as execute="@all/@form", render="@all/@form" on the f:ajax event, all to no avail. My current workaround is to display a message asking the user to press the Refresh button whenever they change the selectOneMenu selection - pretty hokey.

回答1:

Invoke window.location.replace(window.location.href) rather than submit() in the onchange event, as in:

<h:selectOneMenu id="skipLines" ... onchange="window.location.replace(window.location.href);">
    <f:selectItems ... />
    <f:ajax ... />
</h:selectOneMenu>

回答2:

please try the onchange="window.location.reload();" approach like:

<h:selectOneMenu id="skipLines" ... onchange="window.location.reload();">
    <f:selectItems ... />
    <f:ajax ... />
</h:selectOneMenu>

This works just fine in my environment (GF 3.1.1, PF 3.2) but please be aware that there is the possibility of interrupting some ajax functinality.

Hope this helpes, have Fun!

来源：https://stackoverflow.com/questions/11126837/how-to-refresh-page-in-jsf-on-selectonemenu-selection

标签

jsf-2

primefaces