【发布时间】:2013-05-01 08:56:54
【问题描述】:
我有以下代码:
<h:commandButton type="submit" action="#{clController.getPaymentByMonth(clController.type)}" id="stateInfo" value="Show Monthly " >
<f:actionListener binding="#{clController.getTotal(clController.type)}" />
</h:commandButton>
当我添加 <f:actionListener binding=" 时,它会出现以下错误:
at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:114)
at com.sun.faces.facelets.tag.jsf.core.ActionListenerHandler$LazyActionListener.processAction(ActionListenerHandler.java:112)
at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88)
at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:769)
这是我的 getTotal 函数:
List<CustomerPayment> total = null;
try {
org.hibernate.Transaction tx = session.beginTransaction();
Query q = session.createQuery("SELECT SUM(amount) from CustomerPayment where DATE like '%"+year+"' GROUP BY type");
total = (List<CustomerPayment>) q.list();
} catch (Exception e) {
e.printStackTrace();
}
return totalDataTable = new ListDataModel(total);
可能是什么问题?
【问题讨论】:
-
我想要的是当我点击commandButton时调用两个方法
-
您错过了堆栈跟踪的顶部。 “... at ...”行位于描述异常的最重要的第一行之后。