a4j:status是ajax请求的指示器,它有start和stop两种状态,a4j:status的for属性,用来指示ajax请求区域,如果不使用,就是整个页面
<a4j:commandButton id="button1"/>
<a4j:status id="status" for="button1">
<f:facet name="start" >
设置a4j:status的for属性为组件a4j:commandButton的id时,出现异常
Target pointed Attribute for of AjaxStatus component with id status not is AjaxContainer
原因:
a4j:commandButton不是AjaxContainer
AjaxContainer是一个接口,该接口描述了在Ajax请求中应该被解码(decoded)的JSF页面中的一个区域,
AjaxViewRoot 和 AjaxRegion 实现了该接口.
修改后代码
<a4j:region id="region1">
<a4j:status id="status" for="region1">
<f:facet name="start" >
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