我有以下addService.xhtml如何从selectOneMenu组件中获取所选项目的值?
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui">
<h:head><title>Add Service</title></h:head>
<h:body>
<h:form>
<p:outputLabel for="name" value="Service Name" />
<p:inputText id="name" value="#{serviceMB.name}"></p:inputText>
<p:outputLabel for="categoryCompId" value="Service Category" />
<p:selectOneMenu id="categoryCompId" value="#{serviceMB.selectedCategory}" >
<f:selectItem itemLabel="Select Category" itemValue="" noSelectionOption="true" />
<f:selectItems value="#{serviceMB.categories}" var="category" itemLabel="#{category.name}" itemValue="#{category}"/>
</p:selectOneMenu>
<p:commandButton id="saveService" value="Save" action="#{serviceMB.saveServiceAndExit}"/>
</h:form>
</h:body>
而下面的托管bean
@Component
@Controller
@Scope(value = "request")
@ManagedBean(name="serviceMB")
@RequestScoped
public class ServicesManagedBean implements Serializable {
private Category selectedCategory;
private String name;
public Category getSelectedCategory() {
return selectedCategory;
}
public void setSelectedCategory(Category selectedCategory) {
this.selectedCategory = selectedCategory;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public List<Category> getCategories() {
return categoryService.getCategories();
}
}
的setSelectedCategory()
方法不会被调用,selectedCategory
场总是null,尽管我在<p:selectOneMenu
中使用它。我的代码有什么问题吗?
我已经添加了一个转换器,但是当我使用Object selectedObject = ((HtmlSelectOneMenu) arg1).getValue();
时,它也会返回null。
您对管理bean类多余的注释。他们为什么在那里? – Tiny 2014-11-08 08:14:54
我需要在托管bean中注入一个Spring服务bean。所以,我需要这个托管bean在Spring容器中可见。 – user3377708 2014-11-08 08:58:23