我遇到了一些问题,想通过一个commandButton更新datatable。以下是xhtml文件:
<div class="grid_16">
<h:form id="list">
<p:messages></p:messages>
<p:dataTable styleClass="result-table" var="user" id="usersList"
value="#{listUsersController.users}" widgetVar="userTable"
paginator="true" rows="10" paginatorAlwaysVisible="false">
<f:facet name="header">
Listado de usuarios
</f:facet>
<p:column>
<f:facet name="header">
<h:outputText value="#{cms['users.username']}" />
</f:facet>
#{user.username}
</p:column>
<p:column>
<f:facet name="header">
<h:outputText value="#{cms['users.name']}" />
</f:facet>
#{user.name}
</p:column>
<p:column>
<f:facet name="header">
<h:outputText value="#{cms['users.lastname']}" />
</f:facet>
#{user.lastname}
</p:column>
<p:column>
<f:facet name="header">
<h:outputText value="#{cms['users.active']}" />
</f:facet>
#{user.active}
</p:column>
<p:column>
<f:facet name="header">
<h:outputText value="#{cms['general.actions']}" />
</f:facet>
<p:commandButton value="Eliminar" image="ui-icon-trash"
actionListener="#{listUsersController.deleteUser}"
update="list:usersList">
<f:param name="user" value="#{user.id}" />
</p:commandButton>
</p:column>
</p:dataTable>
</h:form>
</div>
问题在于单击执行listUsersController.deleteUser操作的commandButton时。该方法已成功执行并删除用户。但是datatable未更新。我希望使用ajax将已删除的记录从列表中移除。
我已经尝试使用
update="@form"
、update="@parent"
、update="@all"
、update="usersList"
、update=":list:usersList"
进行测试,但均无效。以下是managedBean中的方法:
public String deleteUser() {
try {
FacesContext fc = FacesContext.getCurrentInstance();
Map<String, String> params = fc.getExternalContext().getRequestParameterMap();
int id = Integer.parseInt(params.get("user"));
userService.removeUserById(id);
FacesContext.getCurrentInstance().addMessage
(null,new FacesMessage(FacesMessage.SEVERITY_INFO,MessageProvider.getMessageProvider()
.getValue("cms","users.error.userDoesNotExist"),""));
return SUCCESS;
} catch (EntityNotFoundException e) {
FacesContext.getCurrentInstance().addMessage(null,new FacesMessage(FacesMessage.SEVERITY_ERROR,MessageProvider
.getMessageProvider().getValue("cms","users.error.userDoesNotExist"),""));
return ERROR;
}
}