在jsf中使用f：ajax时如何删除ajax

Question

I use ajax in my web page, then I remove it.

My code:

<h:commandButton type="submit" value="Test">
    <f:ajax listener="#{connectionController.testConnect()}" execute="@form" render="msgCon"/>
</h:commandButton>
<h:commandButton id="btnCreate" type="submit" value="Create" action="#{connectionController.insertConnection(accountController.accLogin.id)}"/>
<h:commandLink styleClass="cmdLink" value="Cancel" onclick="clearConn()"/>

But when I run page again, generated code:

<input id="form:j_idt49" type="submit" name="form:j_idt49" value="Test" onclick="mojarra.ab(this,event,'action','@form','form:msgCon');return false">
<input id="form:btnCreate" type="submit" name="form:btnCreate" value="Create">
<a href="#" onclick="jsf.util.chain(this,event,'clearConn()','mojarra.jsfcljs(document.getElementById(\'form\'),{\'form:j_idt50\':\'form:j_idt50\'},\'\')');return false" class="cmdLink">Cancel</a>

Why does the cancel button still have ajax? How to fix it?

Answer 1

That's not ajax. You're confusing "JavaScript" with "Ajax". You're probably also confusing the HTML representation of <h:commandButton> with <h:commandLink> . Those jsf.util.chain() and mojarra.jsfcljs() have got nothing to do with ajax. They just make it possible to submit a POST form using a plain link instead of a submit button. In plain HTML it's not possible to submit a POST form using a plain link. That's why those helper scripts are all there.

To experiment further, add <f:ajax> inside the <h:commandLink> . You'll see that it get a mojarra.ab() function call in the generated HTML. This will in turn indeed use ajax. Or, replace <h:commandLink> by <h:commandButton> . You'll see that there are no helper scripts anymore to submit a form using a plain link.