从javaBean获取属性

Question

我有一个applicationScoped bean，我在其中初始化我的Store。

@ManagedBean(name="applicationBean", eager=true)
    @ApplicationScoped
    public class applicationBean implements Serializable {
     private Store store;
        public applicationBean() {
            store = new Store();
        }
        public Store getStore() {
            return store;
        }  
    }

现在我想让我的商店在我的另一个Bean。

@ManagedBean(name="productsBean")
@RequestScoped
public class ProductsBean implements Serializable {
    private List <Product> products;
    public ProductsBean(){
    }
}

我如何从我的applicationScoped Bean调用getter ?

Answer 1

只需将您的@ApplicationScoped bean作为托管属性注入ProductsBean。然后，您将能够访问Store属性。

@ManagedBean(name="productsBean")
@RequestScoped
public class ProductsBean implements Serializable {
private List <Product> products;
@ManagedProperty(value="#{applicationBean}")
private applicationBean appBean;
public ProductsBean(){
}
}

记得为属性编写一个setter，以便JSF能够设置它。并且告诉您，在Java语言中不鼓励以小写字母开头的类名(applicationBean)。