我有一个带有两个对话框的表，一个用于删除，另一个用于添加新帐户。当我始终单击两个按钮时，会显示一个对话框。我做错了什么？这是我的前端代码
<ui:composition template="/WEB-INF/templates/default.xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html">
<ui:param name="hideHeaderAndFooter" value="false" />
<ui:param name="navigationAndMain" value="false" />
<ui:param name="login" value="false" />
<ui:define name="mainContent">
<div xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui">
<h:form id="form">
<p:growl id="messages" showDetail="true" />
<p:growl id="growl" showDetail="true" />
<p:growl id="messageyesno" />
<p:growl id="messageadd" />
<p:dataTable var="account"
value="#{accountManagedBeanTran.accountDataModel}"
sortMode="multiple" paginator="true" rows="10"
paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
rowsPerPageTemplate="5,10,15" editable="true"
resizableColumns="true" draggableColumns="true"
selection="#{accountManagedBeanTran.selectedAccounts}">
<f:facet name="header">List of Users</f:facet>
<p:ajax event="rowEdit" listener="#{accountManagedBeanTran.onEdit}"
update=":form:messages"></p:ajax>
<p:ajax event="rowEditCancel"
listener="#{accountManagedBeanTran.onCancel}"
update=":form:messages"></p:ajax>
<p:ajax event="colResize" update=":form:growl"
listener="#{accountManagedBeanTran.onResize}"></p:ajax>
<p:column selectionMode="multiple" style="width:2%" />
<p:column sortBy="#{account.username}" headerText="User Name"
filterBy="#{account.username}" filterMatchMode="contains"
style="width:30%">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{account.username}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{account.username}" style="width:100%" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column sortBy="#{account.firstName}" headerText="First Name"
filterBy="#{account.firstName}" filterMatchMode="contains"
style="width:20%">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{account.firstName}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{account.firstName}" style="width:100%"
label="First Name" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column sortBy="#{account.lastName}" headerText="Surname"
filterBy="#{account.lastName}" filterMatchMode="contains">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{account.lastName}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{account.lastName}" style="width:100%"
label="Last Name" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column sortBy="#{account.email}" headerText="Email"
filterBy="#{account.email}" filterMatchMode="contains">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{account.email}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{account.email}" style="width:100%"
label="Email" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column style="width:6%">
<p:rowEditor />
</p:column>
<f:facet name="footer">
<div>
<p:commandButton id="delete" value="Delete"
onclick="confirmation.show()" type="button" />
<p:confirmDialog id="deleteConfirmDialog" message="Queres borrar el usuario?"
showEffect="drop" hideEffect="drop"
header="Delete" severity="alert"
widgetVar="confirmation" modal="true">
<p:commandButton value="Yes" update=":form:messageyesno"
oncomplete="confirmation.hide()"
actionListener="#{accountManagedBeanTran.onDelete}" />
<p:commandButton value="Not" onclick="confirmation.hide()"
type="button" />
</p:confirmDialog>
<p:commandButton id="add" value="Add"
onclick="confirmation.show()" type="button" />
<p:confirmDialog id="addConfirmDialog" message="Queres agregar un usuario?"
showEffect="drop" hideEffect="drop"
header="Add" severity="alert"
widgetVar="confirmation" modal="true">
<h:form id="messageAddForm">
<h:panelGrid columns="2" style="margin-bottom:10px">
<h:outputLabel for="username" value="User Name:" />
<p:inputText id="unsername" value="#{accountManagedBeanTran.newAccount.username}" />
<h:outputLabel for="password" value="Password:" />
<p:inputText id="password" value="#{accountManagedBeanTran.newAccount.password}" />
<h:outputLabel for="firstName" value="First Name" />
<p:inputText id="firstName" value="#{accountManagedBeanTran.newAccount.firstName}" />
<h:outputLabel for="lastName" value="Surname" />
<p:inputText id="lastName" value="#{accountManagedBeanTran.newAccount.lastName}" />
<h:outputLabel for="email" value="Email" />
<p:inputText id="email" value="#{accountManagedBeanTran.newAccount.email}" />
<h:outputText value="Enabled:" />
<p:selectBooleanCheckbox value="#{accountManagedBeanTran.newAccount.enabled}" />
</h:panelGrid>
</h:form>
<p:commandButton value="Save" update=":form:messageadd"
oncomplete="confirmation.hide()"
actionListener="#{accountManagedBeanTran.onCreate}" />
<p:commandButton value="Cancel" onclick="confirmation.hide()"
type="button" />
</p:confirmDialog>
</div>
</f:facet>
</p:dataTable>
</h:form>
</div>
</ui:define>
提前致谢。