本文介绍了Glassfish计划（定时器）异常的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在尝试重复在Glassfish 4和java EE7上。
所以我在Netbeans中用maven创建了简单的WebApp。
i am trying repeat this tutorial on Glassfish 4 and java EE7.So i created simple WebApp with maven in Netbeans.
我创建了简单的类：
import java.util.Date;
import javax.ejb.Schedule;
import javax.ejb.Stateless;
@Stateless
public class NewClass {
@Schedule(minute = "*/1", hour = "*",persistent = false)
public void anyMethod() {
System.out.println("hello "+new Date());
}
}
但是当我将应用程序卸载到服务器时，我获取此例外：
But when i am deploing app to the server, i get this exception:
Info: EJB5181:Portable JNDI names for EJB NewClass: [java:global/WebApplication1/NewClass, java:global/WebApplication1/NewClass!NewClass]
Severe: Exception while invoking class org.glassfish.ejb.startup.EjbApplication start method
java.lang.RuntimeException: EJB Timer Service is not available
at com.sun.ejb.containers.BaseContainer.startApplication(BaseContainer.java:3951)
at org.glassfish.ejb.startup.EjbApplication.start(EjbApplication.java:163)
at org.glassfish.internal.data.EngineRef.start(EngineRef.java:122)
at org.glassfish.internal.data.ModuleInfo.start(ModuleInfo.java:291)
at org.glassfish.internal.data.ApplicationInfo.start(ApplicationInfo.java:352)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:497)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:219)
at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:491)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:527)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:523)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:360)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2.execute(CommandRunnerImpl.java:522)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:546)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1423)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1500(CommandRunnerImpl.java:108)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1762)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1674)
at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:534)
at com.sun.enterprise.v3.admin.AdminAdapter.onMissingResource(AdminAdapter.java:224)
at org.glassfish.grizzly.http.server.StaticHttpHandler.service(StaticHttpHandler.java:297)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:246)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
at java.lang.Thread.run(Thread.java:744)
Severe: Exception during lifecycle processing
java.lang.RuntimeException: EJB Timer Service is not available
at com.sun.ejb.containers.BaseContainer.startApplication(BaseContainer.java:3951)
......
Severe: Exception while loading the app
Severe: Undeployment failed for context /test
Warning: EJB Timer Service is not available. Timers for application with id 91511565780975616 will not be deleted
Severe: Exception while loading the app : EJB Timer Service is not available
为什么EJB定时服务不可用？
我如何启用它？ ：）
Why EJB Timer Service is not available ? How can i enable it ? :)
推荐答案
如果您使用嵌入式glassfish，可能会被禁用，您应该尝试下载独立的glassfish并尝试
In case you are using an embedded glassfish, it might be disabled, you should try downloading a standalone glassfish and try again.
关于配置，您可以验证glassfish管理控制台中的设置，通常可以在 http：// localhost：4848 ：
Regarding configuration you can verify the settings in the glassfish admin console, usually reachable at http://localhost:4848 :
以下设置相关：
- 配置 - >服务器-config - > EJB容器 - > EJB定时器服务选项卡
- 资源 - > JDBC - > JDBC连接池 - > __TimerPool（这里也可以通过Ping按钮测试连接） li>
- Configurations -> server-config -> EJB Container -> EJB Timer Service tab
- Resources -> JDBC -> JDBC Connection Pools -> __TimerPool (here you can also test the connection via the Ping button)
这篇关于Glassfish计划（定时器）异常的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！