我正在创建一个向用户添加手机的页面。
xhtml页面:
<h:form id="form1">
<p:growl id="messages" showDetail="true"/>
<p:panel header="Phone" style="width: 400px;">
<p:panelGrid columns="2">
<h:outputLabel for="number" value="Number: " />
<p:inputText id="number" value="#{addUserBean.phone.number}"/>
<h:outputLabel for="name" value="Country: " />
<p:inputText id="name" value="#{addUserBean.phone.country.name}"/>
<f:facet name="footer">
<h:commandButton value="Add Phone" action="#{addUserBean.Add}"/>
</f:facet>
</p:panelGrid>
<p:spacer height="30px;"/>
<p:dataTable value="#{AddUserBean.user.phones}" var="phonex" editable="true">
<f:facet name="header">
Phone List
</f:facet>
<p:ajax event="rowEdit" listener="#{AddUserBean.onEdit}" update=":form1:messages" />
<p:ajax event="rowEditCancel" listener="#{AddUserBean.onCancel}" update=":form1:messages" />
<p:column>
<f:facet name="header">
<h:outputText value="Number" />
</f:facet>
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{phonex.number}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{phonex.number}" style="width:100%"/>
</f:facet>
</p:cellEditor>
</p:column>
<p:column>
<f:facet name="header">
<h:outputText value="Country:" />
</f:facet>
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{phonex.country.name}" />
</f:facet>
<f:facet name="input">
<p:inputText value="#{phonex.country.name}" style="width:100%"/>
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="Options" style="width:50px">
<p:rowEditor />
</p:column>
</p:dataTable>
</p:panel>
</h:form>
支持bean:
@Named
@RequestScoped
public class AddUserBean {
private Phone phone;
private Country country;
private User user;
@Inject
UserBeanLocal userBean;
public AddUserBean(){
phone= new Phone();
phone.setCountry(new Country());
user= new User();
user.setPhones(new ArrayList<Phone>());
country= new Country();
}
public Phone getPhone() {
return phone;
}
public void setPhone(Phone phone) {
this.phone = phone;
}
public Country getCountry() {
return country;
}
public void setCountry(Country country) {
this.country = country;
}
public void Add(){
phone.getCountry().setName(country.getName());
user.getPhones().add(phone);
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
}
当我点击提交按钮时,它应该在其列表中为用户添加新手机并刷新数据表。我的问题是,当它提交时,用户变量没有更新(它被更新但在刷新它清除变量),这可能是由于构造函数引起的,但如果我删除了初始化Null指针异常引发。
看到这篇文章但没有奏效。 尝试将bean属性更改为SessionScoped(javax.enterprise.context.SessionScoped)
,但此异常会引发org.jboss.weld.exceptions.DeploymentException: WELD-000072: Bean declaring a passivating scope must be passivation capable. Bean: Managed Bean [class com.totempool.admin.beans.AddUserBean] with qualifiers [@Default @Any @Named]
答案 0 :(得分:0)
如果必须更新inputText,则必须在组件中使用
<p:inputText .. widgetVar="myInput" />
然后,在你的命令按钮中写下
<p:commandButton ... process="@widgetVar(myInput)" />
如果您要将更新应用于面板中的所有组件,请使用&#34; widgetVar&#34;面板的属性&#34;。
祝你好运