1
我想使用Event Admin Handlers。使用Apache Felix iPOJO事件管理處理程序
我試圖運行下面的代碼:
import org.apache.felix.ipojo.handlers.event.Publishes;
import org.apache.felix.ipojo.handlers.event.Subscriber;
import org.apache.felix.ipojo.handlers.event.publisher.Publisher;
...
@Component(immediate = true, publicFactory = false)
@Provides(specifications = {Test.class})
@Instantiate
public class Test {
...
@Publishes(name = "myPublisher", topics = "foo")
private Publisher m_publisher;
...
@Subscriber(name = "mySubscriber", topics = "foo")
public void receive(Event pEvent) {
...
}
}
但有錯誤:
! instances
...
Instance test.Test-0 -> invalid
...
! instance test.Test-0
gogo: NullPointerException: null
據我瞭解,不能得到Publisher組件的實例。我有活動的「Apache Felix iPOJO事件管理處理程序(1.8.0)」包。
用途:
- 阿帕奇菲利克斯4.2.1
- org.apache.felix.ipojo.annotations(1.11.0)
- org.apache.felix.ipojo.api(1.11.0 )
- org.apache.felix.ipojo.handler.eventadmin(1.8.0)
有什麼不對?謝謝。
這是捆綁列表:
! lb
START LEVEL 1
ID|State |Level|Name
0|Active | 0|System Bundle (4.2.1)
1|Active | 1|Commons Codec (1.8.0)
4|Active | 1|Commons IO (2.4.0)
5|Active | 1|Commons Lang (2.6.0)
6|Active | 1|Commons Lang (3.1.0)
7|Active | 1|jcl-over-slf4j (1.7.5)
10|Active | 1|Apache Felix Bundle Repository (1.6.6)
12|Active | 1|Apache Felix Gogo Command (0.12.0)
13|Active | 1|Apache Felix Gogo Runtime (0.10.0)
14|Active | 1|Apache Felix Gogo Shell (0.10.0)
15|Active | 1|Apache Felix iPOJO (1.11.0)
16|Active | 1|Apache Felix iPOJO API (1.11.0)
17|Active | 1|Apache Felix iPOJO Gogo Command (1.11.0)
18|Active | 1|Apache Felix iPOJO Event Admin Handler (1.8.0)
19|Active | 1|osgi.cmpn (4.2.0.200908310645)
20|Active | 1|slf4j-api (1.7.5)
是的,Event Admin Bundle未安裝。謝謝。 – Aleksandr
但是包含@Subscriber的實例在創建後會拋出「gogo:NullPointerException:null」。 – Aleksandr