重新渲染

Question

Lets assume i have next graphic image tag inside a form

<p:lightBox styleClass="imagebox " id="imageLightBox" rendered="true">
   <h:outputLink value="http://..../center/#{myBean.centerId}/picture" title="Bla bla bla">
       <h:graphicImage value="http://..../center/#{myBean.centerId}/picture" />
   </h:outputLink>
</p:lightBox>

and i have next primefaces command button

<p:commandButton icon="fa fa-save" value="Save" title="Save" actionListener="#{myBean.saveCenterImage()}" update="@form" >

So how can i re-render graphicImage when i click on commandButton .

Answer 1

我认为您需要使用p:graphicImage而不是h:graphicImage并设置属性cache = false，以便浏览器不会缓存图像。