有时,使用时<h:commandLink>,<h:commandButton>或者<f:ajax>,在action,actionListener或listener与标签相关的方法根本不被调用.或者,bean属性不会使用提交的UIInput值进行更新.
有什么可能的原因和解决方案？
所以我正在努力让一个示例应用程序工作.我正在使用Primefaces 3.3M4-SNAPSHOT,JBOSS 7 web profile(CDI和JSF Mojarra).
我有我的支持bean:
@Named
@ViewScoped
@URLMapping(id = "viewEditor", pattern = "/editor/e", viewId = "/editor/editor.jsf")
public class ViewEditor implements Serializable {
public void deleteNode() {
selectedNode.getChildren().clear();
selectedNode.getParent().getChildren().remove(selectedNode);
selectedNode.setParent(null);
selectedNode = null;
}
}
我的xhtml:
<p:contextMenu for="docs">
<p:menuitem value="View" update="documentPanel"
icon="ui-icon ui-icon-search" oncomplete="documentDialog.show()" />
<p:menuitem value="Delete"
actionListener="#{viewEditor.deleteNode}" update="docs"
icon="ui-icon ui-icon-close" />
</p:contextMenu>
当我运行我的应用程序时,这是我得到的例外:
javax.el.ELException: /editor/editor.xhtml: The class 'application.ViewEditor$Proxy$_$$_WeldClientProxy' does not have the property 'deleteNode'.
com.sun.faces.facelets.compiler.AttributeInstruction.write(AttributeInstruction.java:94)
com.sun.faces.facelets.compiler.UIInstructions.encodeBegin(UIInstructions.java:82)
com.sun.faces.facelets.compiler.UILeaf.encodeAll(UILeaf.java:183)
javax.faces.render.Renderer.encodeChildren(Renderer.java:168)
有没有人像我一样遇到同样的问题？
在给定的情况下，我想将Facelet与不同的ManagedBeans一起使用，因此About操作bean作为参数给出：
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html" >
<h:body>
<ui:include src="ratings.xhtml" >
<ui:param name="createAction" value="#{myOneCreateAction}" />
<ui:param name="ratings" value="#{context.ratings}" />
</ui:include>
</h:body>
</html>
我给create动作作为参数value="#{myOneCreateAction}"。
在该构面中，一个组件也在其他页面上多次使用-因此，我尝试在复合组件中对其进行重构。
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:io="http://java.sun.com/jsf/composite/inoutComponents">
<ui:composition>
<rich:dataTable id="ratingTblId"
value="#{ratings}"
var="rating">
<rich:column>
<io:removeButton
id="removeButton"
actionMethod="#{createAction.removeRating}"
immediate="true"
render=":#{rich:clientId('ratingTblId')}" />
<h:commandButton
id="removeButton2"
actionListener="#{createAction.removeRating}"
immediate="true" >
<f:ajax render="ratingTblId" />
</h:commandButton>
</rich:column>
</rich:dataTable>
</ui:composition>
</html>
参见，如何actionMethod="#{createAction.removeRating}"针对组件给出方法。该组件本身如下所示：
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:cc="http://java.sun.com/jsf/composite">
<!-- INTERFACE --> …