OSGi bundle activator不工作解决
问题:
在OSGi编程中,编写一个bundle,但等WEB服务器启动后,发现该activator不工作,start()方法没有执行。
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceRegistration;
import com.sgcc.hf.test.osgi.service.HelloService;
public class HelloServiceActivator implements BundleActivator {
ServiceRegistration helloServiceRegistration;
@Override
public void start(BundleContext context) throws Exception {
System.out.println("HELLOSERVICE BUNDLE STARTING...");
HelloService helloService = new HelloServiceImpl();
helloServiceRegistration = context.registerService(HelloService.class
.getName(), helloService, null);
}
@Override
public void stop(BundleContext context) throws Exception {
System.out.println("HELLOSERVICE BUNDLE STOPPING...");
helloServiceRegistration.unregister();
}
}
通过ss命令查看bundle,该bundle已经是激活状态。
解决:
在该bundle项目的META-INF/MANIFEST.MF文件中,加上一行声明:
Bundle-Activator: com.nariit.sample.kafka.KafkaWebsocketActivator
编译打包后重新启动,activator start()方法执行。