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我正在使用tomcat在Weld CDI上设置一个应用程序,并尝试在应用程序启动时运行类以启动实体管理器。 我收到以下异常绞车,表明我的班级有多个范围。焊接CDI范围异常
WELD-000046 At most one scope may be specified on [email protected] @Singleton class se.raindance.squid.core.init.InitSquid
这里是我的InitSquid.Java
@ApplicationScoped
@Singleton
@Startup
public class InitSquid {
@Inject
private Logger log;
@Inject
EntityManager entityManager;
/**
*
* @param startupEvent is sent when JSF is ready and up and running(After first
* request to FacesServlet).
*/
@PostConstruct
public void init() {
System.out.println("stutrup!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! InitSquid");
// Init Rainlets
InitRainlets initRainlets = new InitRainlets(entityManager);
initRainlets.init();
initSquidSettings();
}
private void initSquidSettings() {
List<SquidSettings> settingsList = (List<SquidSettings>) entityManager
.createQuery(
"select squidsettings from SquidSettings squidsettings")
.getResultList();
if (settingsList.size() == 0) {
log.info("No SquidSettings entity exists in system, creating one");
SquidSettings settings = new SquidSettings();
settings.setSubledgerRestResourceURI("http://localhost:8080/subledger-webapp/resteasy/");
entityManager.persist(settings);
}
}
}
我欢迎任何提示就这个问题
?我一开始并没有“@singleton”,但是我读到如果我想使用“@startup”,我必须有@Singleton annotaion的单例类 – Yashar 2013-05-06 14:53:09
applicationscoped与'eager'一起使用, – 2013-05-06 14:57:36