如何在primefaces中获取标签<p:menu>的值

<p:menu>
    <p:menuitem id="item1" value="菜单项1" />
    <p:menuitem id="item2" value="菜单项2" />
    <p:menuitem id="item3" value="菜单项3" />
</p:menu>

@ManagedBean
@RequestScoped
public class MyBean {
    @ManagedProperty("#{requestContext}")
    private RequestContext requestContext;

    // getter and setter for requestContext

    // other methods
}

public void getMenuValue() {
    String item1Value = (String) requestContext.getComponent("item1").getAttributes().get("value");
    String item2Value = (String) requestContext.getComponent("item2").getAttributes().get("value");
    String item3Value = (String) requestContext.getComponent("item3").getAttributes().get("value");

    // Do something with the menu item values
}