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今天尝试在我的一种方法上使用 Java @Schedule 注释时遇到问题。错误如下：

Severe:   Exception while deploying the app [MyApp-ear] : Error processing EjbDescriptor
java.lang.RuntimeException: ScheduleManager: Invalid schedule defined on method sendEmail(): Invalid minute value: ?
at org.glassfish.ejb.deployment.util.EjbBundleValidator.accept(EjbBundleValidator.java:351)
at org.glassfish.ejb.deployment.descriptor.EjbDescriptor.visit(EjbDescriptor.java:2855)
at org.glassfish.ejb.deployment.descriptor.EjbDescriptor.visit(EjbDescriptor.java:2843)
at org.glassfish.ejb.deployment.util.EjbBundleValidator.accept(EjbBundleValidator.java:115)
at com.sun.enterprise.deployment.BundleDescriptor.visit(BundleDescriptor.java:627)
at org.glassfish.ejb.deployment.descriptor.EjbBundleDescriptorImpl.visit(EjbBundleDescriptorImpl.java:767)
at com.sun.enterprise.deployment.util.ApplicationValidator.accept(ApplicationValidator.java:121)
at com.sun.enterprise.deployment.BundleDescriptor.visit(BundleDescriptor.java:627)
at com.sun.enterprise.deployment.archivist.ApplicationArchivist.validate(ApplicationArchivist.java:703)
at com.sun.enterprise.deployment.archivist.ApplicationArchivist.openWith(ApplicationArchivist.java:248)
at com.sun.enterprise.deployment.archivist.ApplicationFactory.openWith(ApplicationFactory.java:232)
at org.glassfish.javaee.core.deployment.DolProvider.processDOL(DolProvider.java:189)
at org.glassfish.javaee.core.deployment.DolProvider.load(DolProvider.java:223)
at org.glassfish.javaee.core.deployment.DolProvider.load(DolProvider.java:91)
at com.sun.enterprise.v3.server.ApplicationLifecycle.loadDeployer(ApplicationLifecycle.java:882)
at com.sun.enterprise.v3.server.ApplicationLifecycle.setupContainerInfos(ApplicationLifecycle.java:822)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:378)
at com.sun.enterprise.v3.server.ApplicationLifecycle.deploy(ApplicationLifecycle.java:220)
at org.glassfish.deployment.admin.DeployCommand.execute(DeployCommand.java:487)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:539)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$2$1.run(CommandRunnerImpl.java:535)
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:534)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:565)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$3.run(CommandRunnerImpl.java:557)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:360)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:556)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.doCommand(CommandRunnerImpl.java:1464)
at com.sun.enterprise.v3.admin.CommandRunnerImpl.access$1300(CommandRunnerImpl.java:109)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1846)
at com.sun.enterprise.v3.admin.CommandRunnerImpl$ExecutionContext.execute(CommandRunnerImpl.java:1722)
at com.sun.enterprise.v3.admin.AdminAdapter.doCommand(AdminAdapter.java:534)
at com.sun.enterprise.v3.admin.AdminAdapter.onMissingResource(AdminAdapter.java:224)
at org.glassfish.grizzly.http.server.StaticHttpHandlerBase.service(StaticHttpHandlerBase.java:189)
at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:466)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:169)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:539)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:593)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:573)
at java.lang.Thread.run(Thread.java:748)

我的方法声明如下所示：

@Schedule(minute = "∗/5")
public void sendEmail() {
  //Send email here
}

知道是什么原因造成的吗？我已经用过很多次了，从来没有遇到过任何问题，但主要是使用“dayOfMonth”属性。我在 Oracle Docs 上找到了我正在寻找的表达式，@Schedule 每小时每 5 分钟运行一次。

4

2 回答 2

0

* 字符无效，但您已经注意到 :)

重要提示：您的日程安排仍然错误！

当不指定任何注解的参数时，它将回退到默认值。默认值为hour0 ，这意味着您的计划任务将从 00:05 到 00:55 每 5 分钟运行一次，然后在接下来的 23 小时内处于空闲状态。

要解决此问题，还将小时数指定为 *：

@Schedule(hour = "*", minute = "*/5")

查看默认值Schedule：

public @interface Schedule {

    String second() default "0";
    String minute() default "0";
    String hour() default "0";
于 2017-07-27T10:36:38.470 回答
0

原来这是 Oracle Docs 网站上的一个愚蠢的复制粘贴问题。它复制了一个“*”而不是一个“*”，这导致 JVM 在运行时崩溃。不要从 Oracle Docs 网站复制，吸取教训。

好吧，如果他们遇到同样的问题，我希望这可以为他们节省 30 分钟。

问候，

于 2017-07-27T10:29:40.107 回答