无法使用 JSF2 捕获 RichFaces 4 a4j:commandButton 的会话超时错误

Question

我在我的 xhtml page.It 中使用了 a4j:commandButton，工作正常。但是在会话超时之后，我可以单击按钮，但它不会触发支持 bean 操作方法。我想向用户显示会话已过期。我关注了 richfaces 站点中的 material，但不知道为什么它不起作用。我将会话超时设置为 1 分钟以测试场景。

web.xml:

<servlet>
    <servlet-name>Faces Servlet</servlet-name>
    <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>Faces Servlet</servlet-name>
    <url-pattern>/faces/*</url-pattern>
</servlet-mapping>
    <context-param>
        <param-name>org.ajax4jsf.handleViewExpiredOnClient</param-name>
        <param-value>true</param-value>
    </context-param>
<session-config>
    <session-timeout>1</session-timeout>
</session-config>

Javascript:

<h:head>
    <!-- (...) -->
    <script type="text/javascript">
        A4J.AJAX.onError = function(req, status, message){
            window.alert("Custom onError handler "+message);
    }
    </script>
</h:head>

xhtml:

<a4j:commandButton id="submitButton"
        value="Remediate Data" 
        action="#{addressManagedBean.submit}"
        onclick="return confirm('Are You Sure?')"
        styleClass="button-style" render="successMessage failureMessage infoMessage validationTMPMessage validationBOMessage">
</a4j:commandButton>
<a4j:log></a4j:log>

日志：

info [01:16:08.428]: Received 'begin' event from <input id=form12:submitButton class=button-style ...>
info [01:16:08.740]: Received 'beforedomupdate' event from <input id=form12:submitButton class=button-style ...>
info [01:16:08.740]: Element error
<error><error-name>class javax.faces.application.ViewExpiredException</error-name><error-message><![CDATA[viewId:/remediateData.xhtml - View /remediateData.xhtml could not be restored.]]></error-message></error>
error[01:16:08.740]: Received 'error@serverError' event from <input id=form12:submitButton class=button-style ...>
error[01:16:08.740]: [200] class javax.faces.application.ViewExpiredException: viewId:/remediateData.xhtml - View /remediateData.xhtml could not be restored.
info [01:16:08.740]: Received 'complete' event from <input id=form12:submitButton class=button-style ...>

我怎样才能实现我的目标？

Answer 1

这适用于 JSF 2.1.28

<h:body>
<script language="javascript">
    jsf.ajax.addOnError(function(data) {
         alert('Error');
    });
</script>

[...]

我已将脚本放在正文部分。

Answer 2

此问题已解决。我使用了 jsf onError 和 onEvent javascript 方法。

http://javaevangelist.blogspot.in/2014/01/jsf-2x-tip-of-day-custom-jsf-ajax-error.html

无法使用 JSF2 捕获 RichFaces 4 a4j:commandButton 的会话超时错误

Not able to capture the session timeout error for RichFaces 4 a4j:commandButton with JSF2

ajax

richfaces

session-timeout

jsf-2