java - 用于在 Spring 和 JSF 中检索 session bean 的静态类

Question

我需要一个可用于服务和数据访问层的 session bean，但我不想将它注入(inject)到每个对象中。

我不想要这个:

 <!-- a HTTP Session-scoped bean exposed as a proxy -->
    <bean id="userPreferences" class="com.foo.UserPreferences" scope="session">

          <!-- this next element effects the proxying of the surrounding bean -->
          <aop:scoped-proxy/>
    </bean>

    <!-- a singleton-scoped bean injected with a proxy to the above bean -->
    <bean id="userService" class="com.foo.SimpleUserService">

        <!-- a reference to the proxied 'userPreferences' bean -->
        <property name="userPreferences" ref="userPreferences"/>

    </bean>

是否可以创建一个静态类来检索当前请求的 session bean？

像这样:

 <!-- a HTTP Session-scoped bean exposed as a proxy -->
        <bean id="userPreferences" class="com.foo.UserPreferences" scope="session">

              <!-- this next element effects the proxying of the surrounding bean -->
              <aop:scoped-proxy/>
        </bean>

Public Class sessionResolver{

  public static UserPreferences getUserPreferences(){

  //Not real code!!!
  return (UserPreferences)WebApplicationContex.getBean("userPreferences")
  }

}

Answer 1

我不确定这是否有效，我现在也没有办法尝试，但是这个怎么样:

public static UserPreferences getUserPreferences(){

    return (UserPreferences) ContextLoader.getCurrentWebapplicationContext()
                                            .getBean("userPreferences");
}