微信公众号搜"智元新知"关注
微信扫一扫可直接关注哦!

未能封送 EJB 参数?

如何解决未能封送 EJB 参数?

我向 EJB3 添加一个方法,但出现以下错误。我知道这是由于可序列化问题,但我无法更改对象,因为它来自外部库 org.apache.commons.beanutils

此外,我使用 Wildfly 11 作为服务器,使用带有 Java 8 的 Vaadin 18。

有什么解决方法吗?

java.lang.RuntimeException: WFLYEJB0054: Failed to marshal EJB parameters
at org.jboss.as.ejb3.remote.LocalEjbReceiver.clone(LocalEjbReceiver.java:385)
at org.jboss.as.ejb3.remote.LocalEjbReceiver.clone(LocalEjbReceiver.java:365)
at org.jboss.as.ejb3.remote.LocalEjbReceiver$cloningResultProducer.getResult(LocalEjbReceiver.java:304)
at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:567)
at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:503)
at org.jboss.ejb.protocol.remote.RemotingEJBClientInterceptor.handleInvocationResult(RemotingEJBClientInterceptor.java:56)
at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:569)
at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:503)
at org.jboss.ejb.client.TransactionPostdiscoveryInterceptor.handleInvocationResult(TransactionPostdiscoveryInterceptor.java:133)
at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:569)
at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:503)
at org.jboss.ejb.client.discoveryEJBClientInterceptor.handleInvocationResult(discoveryEJBClientInterceptor.java:118)
at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:569)
at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:503)
at org.jboss.ejb.client.NamingEJBClientInterceptor.handleInvocationResult(NamingEJBClientInterceptor.java:78)
at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:569)
at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:503)
at org.jboss.ejb.client.TransactionInterceptor.handleInvocationResult(TransactionInterceptor.java:172)
at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:569)
at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:503)
at org.jboss.ejb.client.EJBClientInvocationContext.awaitResponse(EJBClientInvocationContext.java:907)
at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:165)
at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:100)
at com.sun.proxy.$Proxy155.findRecordsInTable(UnkNown Source)

EJB

@Stateless
@Remote(QueriesRemote.class)
@org.jboss.ejb3.annotation.TransactionTimeout(value = 20,unit = TimeUnit.MINUTES)
public class Queries extends Base implements QueriesRemote{

    @PersistenceContext
    private EntityManager manager;
    
    @Resource(mappedname="java:/TedingDS")
    private javax.sql.DataSource db;

    @Resource
    SessionContext ctx;
    

    
    public List<DynaBean> findRecordsInTable(String querySource){
        List<DynaBean> beanList = Collections.EMPTY_LIST;

        try (ResultSet myResult = db.getConnection().createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY).executeQuery(querySource)) {
            RowSetDynaClass rsdc = new RowSetDynaClass(myResult,false);
            beanList =  rsdc.getRows();
            closeAllViaResultSet(myResult);
        } catch (sqlException e) {
            logger.log(Level.SEVERE,"From class:".concat(this.getClass().getName()));
        }

        return beanList;
    }

}

我怎么称呼它

@Route(value = QueriesView.ROUTE,layout = MainLayout.class)
@PageTitle(QueriesView.TITLE)
public class QueriesView extends VerticalLayout implements BeforeEnterObserver,BeforeLeaveObserver,AfterNavigationObserver,LocaleChangeObserver,HasUrlParameter<String> {
    private final Logger LOGGER = Logger.getLogger(this.getClass().getName());
    public static final String ROUTE = "queryView";
    public static final String TITLE = "Query";


        @EJB
        public QueriesRemote remote;

        public QueriesView() {}

    @Override
    public void beforeEnter(BeforeEnterEvent beforeEnterEvent) {
        LOGGER.info("beforeEnter queryView");
        if(remote == null)
            Notification.show("beforeEnter remote == null");
        else {
            List<DynaBean> list = remote.findRecordsInTable("select * from attached limit 5");
            Notification.show("Size beforeEnter:".concat(String.valueOf(list.size())),5000,Notification.Position.MIDDLE);
        }
    }

}

解决方法

感谢@areus

我只是使用了 @Local 接口而不是 @Remote

版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。