Question

我正在尝试在我的应用程序中使用EJB 3.1中的Timer Service。

@Stateless
@LocalBean
public class StatelessTimerSessionBean {

    @Schedule(minute = "*", second = "0", dayOfMonth = "*", month = "*", year = "*", hour = "9-17", dayOfWeek = "Mon-Fri")
    public void myTimer() {
        System.out.println("Timer event: " + new Date());
    }
}

“..将EJB Timer Service的Timer DataSource设置设置为有效的JDBC资源..”

来自EJB Timer Service

我无法弄清楚如何正确配置Timer Datasource？

部署时遇到的错误是：

SEVERE: Exception while invoking class org.glassfish.ejb.startup.EjbApplication start method
java.lang.RuntimeException: EJB Timer Service is not available

跑步：glassfish-3.1.2.2

Answer 1

1。示例数据库设置

我使用MySQL作为我的数据库。
从EJB__TIMER__TBL

{GF_HOME}/glassfish/lib/install/databases/ejbtimer_{DB_ENGINE}.sql

DB_ENGINE =例如MySQL：

CREATE TABLE EJB__TIMER__TBL (
    `CREATIONTIMERAW`      BIGINT        NOT NULL,
    `BLOB`                 BLOB,
    `TIMERID`              VARCHAR(255)  NOT NULL,
    `CONTAINERID`          BIGINT        NOT NULL,
    `OWNERID`              VARCHAR(255)  NULL,
    `STATE`                INTEGER       NOT NULL,
    `PKHASHCODE`           INTEGER       NOT NULL,
    `INTERVALDURATION`     BIGINT        NOT NULL,
    `INITIALEXPIRATIONRAW` BIGINT        NOT NULL,
    `LASTEXPIRATIONRAW`    BIGINT        NOT NULL,
    `SCHEDULE`             VARCHAR(255)  NULL,
    `APPLICATIONID`        BIGINT        NOT NULL,
    CONSTRAINT `PK_EJB__TIMER__TBL` PRIMARY KEY (`TIMERID`)
);

2。服务器配置

启动GlassFish服务器管理控制台：通常为http://localhost:4848
在左侧导航至 [配置]＆gt; [server-config]＆gt; [EJB容器]
然后点击 TAB 顶部 [EJB计时器服务]
然后用您的JDBC资源填写计时器数据源：例如。 [MySQL的普]。（Note: Defaults to jdbc/__TimerPool）
重新启动服务器

3。结果

...
INFO: [TimerBeanContainer] Created  TimerBeanContainer: TimerBean
INFO: EJB5181:Portable JNDI names for EJB TimerBean: [java:global/ejb-timer-service-app/TimerBean, java:global/ejb-timer-service-app/TimerBean!com.sun.ejb.containers.TimerLocal]
INFO: WEB0671: Loading application [ejb-timer-service-app] at [/ejb-timer-service-app]
INFO: EJB5109:EJB Timer Service started successfully for data source [mysql-pu]
INFO: Setting DBReadBeforeTimeout to false
INFO: ==> Restoring Timers ... 
INFO: There are no EJB Timers owned by this server
INFO: <== ... Timers Restored.
...

4。仍然破碎？ TimerService刚刚停止工作（它曾经工作过）？

所以在经过一整天的“部署保存”之后发生了这件事。 TimerService突然无法使用。

Severe:   Exception while loading the app
Severe:   Undeployment failed for context /ejb-timer-service-app
Warning:   Cannot deploy or load EJBTimerService: org.glassfish.deployment.common.DeploymentException: Error in linking security policy for ejb-timer-service-app -- Inconsistent Module State

<强> Solution Found Here

5。有用的链接

Oracle: To Deploy an EJB Timer to a Cluster

Answer 2

在JBoss / WildFly中，您可以按照以下说明操作：

Mastertheboss.com: Creating clustered EJB 3 Timers
发布时间：2015年3月8日

Answer 3

听起来像glassfish-3.1.2.2不支持EJB3，尝试使用jboss 7.

http://docs.oracle.com/cd/E26576_01/doc.312/e24939/release-notes.htm

设置/配置EJB Timer Service的DataSource

3 个答案:

1。示例数据库设置

2。服务器配置

3。结果

4。仍然破碎？ TimerService刚刚停止工作（它曾经工作过）？

5。有用的链接