我的应用程序中有一个两个模块,其中第一个模块有一个单独的启动bean,我将本地服务绑定为JNDI资源。在第二个模块中,我有一个Producer,我想查找这个资源,但在整个生命周期中遇到问题,因为Produces在启动Bean之前启动调用,结果无法加载资源。这是我的代码:
@Slf4j
@Singleton
@Startup
public class WebSocketServerActivator {
private static final Logger LOG = LoggerFactory.getLogger(WebSocketServerActivator.class);
private void startServer() {
try {
WebSocketServer webSocketServer = WebSocketServer.getInstance();
webSocketServer.setHost("localhost");
webSocketServer.setPort(9900);
webSocketServer.initialize();
InitialContext ic = new InitialContext();
ic.rebind(WebSocketSQLService.WEBSOCKET_SQL_JNDI, SQLRequestManager.getInstance());
} catch (Exception e) {
LOG.error("Error while starting webSocket in start activator ", e);
}
}
@PostConstruct
public void postConstruct() {
startServer();
}
}
这是其他模块中的Producer类:
public class WebSocketServiceLocator {
@Produces
public WebSocketSQLService getWebSocketService(
@JndiStringResource(value = "visma.websocket.server", defaultValue = WebSocketSQLService.WEBSOCKET_SQL_JNDI)
Supplier<String> websocketServerName
) {
return (WebSocketSQLService) lookupService(websocketServerName.get());
}
private Object lookupService(String lookupName) {
try {
InitialContext ic = new InitialContext();
return ic.lookup(lookupName);
} catch (NamingException e) {
throw new RuntimeException("Cannot find " + lookupName, e);
}
}
}
有人可以告诉我为什么在WebSocketServiceLocator之后加载@startup bean吗?
答案 0 :(得分:1)
根据您使用的标签,ejb-3.0尚未提供@Startup。 如果您使用3.1,也许您可以同时创建@Startup Singletons并使用@DependsOn来定义bean的序列。 see