我将项目迁移到 wildfly10 并使用 CDI-API 1.2 。
我一直在使用这种结构来获取 beanmanager ,然后查找一些资源(示例EJBS)。
import javax.enterprise.inject.spi.BeanManager;
import javax.enterprise.inject.spi.CDI;
public abstract class ServiceLocator {
//....
private BeanManager getBeanManager() throws NamingException {
return CDI.current().getBeanManager();
}
public static <T> T lookup(Class<T> clazz) {
BeanManager manager = this.getBeanManager();
//...
}
使用 Servlet 或 filter 。
但是,当我在 MDB JMS 中使用相同的功能时,例如:
@MessageDriven(mappedName = MyQueueProcessor.QUEUE_NAME,
//...
public class RecebimentoMensagemCAM0021MDB {
@Override
protected void process(Object obj) {
MyServices service = ServiceLocator.lookup(MyServices.class);
//...
发生此例外:
java.lang.IllegalStateException: WFLYWELD0039: Singleton not set for
ModuleClassLoader for Module "org.apache.activemq.artemis.ra:main"
from local module loader @629f0666 (finder: local module finder
@1bc6a36e (roots: /home/confidence/wildfly-
10.1.0.Final/modules,/home/confidence/wildfly-
10.1.0.Final/modules/system/layers/base)). This means that you are
trying to access a weld deployment with a Thread Context ClassLoader
that is not associated with the deployment.
at org.jboss.as.weld.services.ModuleGroupSingletonProvider$TCCLSingleton.get(ModuleGroupSingletonProvider.java:77)
at org.jboss.as.weld.services.ModuleGroupSingletonProvider$TCCLSingleton.get(ModuleGroupSingletonProvider.java:134)
at org.jboss.weld.Container.instance(Container.java:55)
at org.jboss.as.weld.WeldProvider.getCDI(WeldProvider.java:61)
at javax.enterprise.inject.spi.CDI.current(CDI.java:60)
at br.com.project.ServiceLocator.getBeanManager(ServiceLocator.java:xx)
at br.com.project.ServiceLocator.lookup(ServiceLocator.java:xx)
任何人都可以帮助如何使此查找在JMS中起作用。
预先感谢。
您可以使用CDI获得服务的实例,而不是您的定位器,例如:
myServices myServices = cdi.Select(myServices.Class).get()
http://docs.jboss.org/cdi/learn/learn/userguide/cdi-user-guide.html#_obtaining_a_a_contextual_instance_by_programmatice_logmate_logmate_look_lookup