Myh:form包含一个p:selectOneMenu组件，它有两个值 single 和 multiple。h:form还包含一个默认p:inputText值。p:inputText我的目标是仅在选择值倍数时添加多个组件。请参阅随附的屏幕截图-
下面是我的视图，假设ajax在单击图标按钮时发送请求-
<h:form>
<p:panel header="Dynamically Add textbox">
<p:selectOneMenu id="runType" value="#{repeateRun.runType}">
<f:selectItems value="#{repeateRun.runList}" var="runType" itemLabel="#{runType}" itemValue="#{runType}" />
<p:ajax update="outPanel" listener="#{repeateRun.renderComponent}" />
</p:selectOneMenu>
<h:panelGrid id="runList">
<ui:repeat value="#{repeateRun.runs}" var="run">
<p:inputText value="#{run.runValue}" />
</ui:repeat>
</h:panelGrid>
<p:outputPanel id="outPanel">
<p:commandButton update="runList" icon="ui-icon-plusthick" title="Add more" rendered="#{repeateRun.showAddButton}">
<f:ajax render="runList" listener="#{repeateRun.addRun}" />
</p:commandButton>
</p:outputPanel>
</p:panel>
</h:form>
RepeateRun@ViewScoped @ManagedBean如下-
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.event.ActionEvent;
@ManagedBean
@ViewScoped
public class RepeateRun implements Serializable {
private static final long serialVersionUID = 1L;
private List<String> runList;
private List<Run> runs;
private int runValue;
private String runType;
private boolean showAddButton = false;
private static final String SINGLE = "Single";
private static final String MULTIPLE = "Multiple";
//Note : Getters Setters are removed while putting here
@PostConstruct
public void initBean() {
this.setRunList(this.populateRunList());
this.setRuns(this.populateRuns());
}
public void addRun() {
if (this.runs == null) {
this.setRuns(this.populateRuns());
} else {
this.runs.add(this.defaultRun());
}
}
public void renderComponent() {
if (this.getRunType().equals(SINGLE)) {
this.setShowAddButton(false);
} else {
this.setShowAddButton(true);
}
}
private List<String> populateRunList() {
List<String> runList = new ArrayList<String>();
runList.add(SINGLE);
runList.add(MULTIPLE);
return runList;
}
private Run defaultRun() {
Run defaultRun = new Run();
defaultRun.setRunValue(1);
return defaultRun;
}
private List<Run> populateRuns() {
List<Run> runs = new ArrayList<Run>();
runs.add(this.defaultRun());
return runs;
}
}
因此，在加号图标按钮中选择值 Multiple 后f:selectItems，按钮未调用附加方法，即addRun. 为了确认addRun点击后的方法调用，我在method.xml中放了一些sysout语句addRun。我看到了，sysout没有脸红。与此同时，我xml在萤火虫中看到了一些反应。
哪里有问题？