我有两个包含4个按钮的表单，每个按钮都有一个actionListener属性设置，用于调用请求范围bean中的单个方法。此方法检查以确定执行操作的按钮，然后根据该信息（创建，读取，更新或删除）执行一些操作。问题是，在这四个按钮中，有三个工作。最后一个（更新）按钮未调用该操作。
This问题有点帮助，因为在阅读之后，我设法让第四个按钮工作一次（断点和变量观察确定） - 但后来我停止了程序，做了一个小改动因为页面无法呈现页面的一部分（取决于'编辑'变量），看着它再次失败，然后忘记我做了什么让它工作。我已经确定问题不是嵌套表单，我正在导入正确的事件类，没有验证错误，没有迭代标记，按钮正在渲染但未被禁用，或任何@BalusC在回答这个问题时提到的其他问题除了一个 - 当我使用<h:commandLink>时，JS会在返回false的页面上呈现，尽管更改为<h:commandButton>仍然无法调用{ {1}}。但奇怪的是，曾经有一次工作并且调用了行动我使用的是actionListener。
有谁看到我做错了什么？
表格1（创建;作品）：
<h:commandLink>表单2（阅读（从重定向到此列表的列表页面中单击的详细信息按钮）可用，更新;不起作用，删除;工作）：
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:c="http://xmlns.jcp.org/jsp/jstl/core"
xmlns:f="http://xmlns.jcp.org/jsf/core">
<h:head></h:head>
<h:body>
<ui:composition template="../../template.xhtml">
<ui:define name="top">
New Location View
</ui:define>
<ui:define name="left"></ui:define>
<ui:define name="content">
<f:view>
<h:form>
<h2><h:outputText value="Create a Location"/></h2>
<h:panelGrid columns="2">
<h:outputLabel for="locationName" value="Name:"/>
<h:inputText id="locationName" value="#{locationBean.locationName}"/>
<h:outputLabel for="locationDesc" value="Description:"/>
<h:inputText id="locationDesc" value="#{locationBean.locationDescription}"/>
<h:commandButton value="Add Location" id="createact" actionListener="#{locationBean.doAction}"/>
</h:panelGrid>
</h:form>
</f:view>
</ui:define>
</ui:composition>
</h:body>
</html>
doAction方法（从所有四个按钮调用）：
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:c="http://xmlns.jcp.org/jsp/jstl/core"
xmlns:f="http://xmlns.jcp.org/jsf/core">
<h:head>
</h:head>
<h:body>
<ui:composition template="../../../template.xhtml">
<ui:define name="top">
Location Details View
</ui:define>
<ui:define name="left">
</ui:define>
<ui:define name="content">
<c:set var="location" value="#{locationBean.l}"/>
<h:form>
<h:panelGrid columns="2" rendered="#{not locationBean.editing}" >
<h:outputLabel value="Name:"/>
<h:outputText id="nameout" value="#{location.locationname}"/>
<h:outputLabel value="Description:" />
<h:outputText id="descout" value="#{location.description}"/>
<h:commandButton id="delact" actionListener="#{locationBean.doAction}" value="Delete"/>
<h:commandButton id="editact" actionListener="#{locationBean.doAction}" value="Edit"/>
</h:panelGrid>
<h:panelGrid columns="2" rendered="#{locationBean.editing}">
<h:outputLabel value="Name:" />
<h:inputText id="namein" value="#{location.locationname}" required="true" requiredMessage="There must be a name."/>
<h:outputLabel value="Description:" />
<h:inputText id="descin" value="#{location.description}" required="true" requiredMessage="There must be a description."/>
<h:commandLink id="cancelact" actionListener="#{locationBean.doAction}" value="Cancel"/>
<h:commandLink id="saveact" actionListener="#{locationBean.doAction}" value="Save"/>
</h:panelGrid>
<h:inputHidden value="#{location.identifier}" id="viewid" />
<c:catch var="error">
<h:outputLabel value="#{error.message}" />
</c:catch>
</h:form>
<h:outputText value="will also show location hours and days open and employees at this location."/>
</ui:define>
</ui:composition>
</h:body>
</html>
模板文件：
public void doAction(ActionEvent e) {
String callingID = e.getComponent().getId();
try {
if (callingID.isEmpty()) {//id is empty
FacesContext.getCurrentInstance().addMessage(callingID, new FacesMessage(
"What are you doing wrong? Actions must have a valid id.",
"Empty Strings are not a valid id."));
} else if (callingID.endsWith("delact")) {//component id is delete
this.l = lsb.getLocationToView();
lsb.delete(l);
FacesContext.getCurrentInstance().getExternalContext().redirect("/EmployeeScheduler-war/webpages/view/locations.xhtml");
} else if (callingID.endsWith("editact")) {//component id is edit
this.editing = true;
this.l = lsb.getLocationToView();
} else if (callingID.endsWith("saveact")) {//component id is save, usually after an edit action
this.editing = false;
lsb.edit(l);
} else if (callingID.endsWith("cancelact")) {//component id is cancel. usuallys after edit action
this.editing = false;
} else if (callingID.endsWith("createact")) {//component id is create. always create a new location
FacesContext.getCurrentInstance().getExternalContext().redirect("/EmployeeScheduler-war/webpages/view/locations.xhtml");
lsb.create(l);
} else if (callingID.endsWith("detailsact")) {//component id is details. alwas from list view
this.l = lsb.getLocationToView();
} else {
FacesContext.getCurrentInstance().addMessage(callingID, new FacesMessage(
"What are you doing wrong? Actions must have a valid id.",
callingID + " is not not valid."));
}
//catch any failures
} catch (RollbackFailureException ex) {
FacesContext.getCurrentInstance().addMessage(callingID, new FacesMessage(
"An error occured trying to rollback the deletion of the location: " + ex.getMessage(),
"Details: " + ex.getCause().getMessage()));
} catch (Exception ex) {
FacesContext.getCurrentInstance().addMessage(callingID, new FacesMessage(
"An error occured trying to delete the location: " + ex.getMessage(),
"Details: " + (ex.getCause() == null ? "none" : ex.getCause().getMessage())));
}
}