设置/配置EJB Timer Service的DataSource

Question

我正在尝试在我的应用程序中使用EJB 3.1中的计时器服务.

@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？

部署时出现的错误是:

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

1. 我使用MySQL作为我的数据库.

2. EJB__TIMER__TBL从中创建表{GF_HOME}/glassfish/lib/install/databases/ejbtimer_{DB_ENGINE}.sql

DB_EN​​GINE =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

1. 启动GlassFish服务器管理控制台:通常 http://localhost:4848
2. 在左侧导航到[Configurations]> [server-config]> [EJB Container]
3. 然后单击TAB up top [EJB Timer Service]
4. 然后用你的JDBC资源填写Timer Datasource:例如.[MySQL的普].( 注意:默认为jdbc/__TimerPool)
5. 重启服务器

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.
...

还是坏了吗？TimerService刚停止工作(它以前工作)？

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

找到解决方案

5.有用的链接

• Oracle:将EJB计时器部署到集群