WebLogic应用程序中没有任何组件

Question

我们正在升级一个J2EE应用程序（JSP

日志中显示以下内容：

####<Sep 26, 2016, 6:16:08,62 PM EDT> <Error> <Deployer> <CVG-000216B-010> <BaseServer> <[STANDBY] ExecuteThread: '11' for queue: 'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <> <9b2f9073-e2d2-4c02-915c-4e5de240621e-00000012> <1474928168062> <[severity-value: 8] [rid: 0] [partition-id: 0] [partition-name: DOMAIN] > <BEA-149265> <Failure occurred in the execution of deployment request with ID "25758041366812" for task "0" on [partition-name: DOMAIN]. Error is: "weblogic.management.DeploymentException: Application [MyApp] does not have any Components in it."
weblogic.management.DeploymentException: Application [MyApp] does not have any Components in it.
    at weblogic.jdbc.module.JDBCDeployment.createModule(JDBCDeployment.java:40)
    at weblogic.jdbc.module.JDBCDeployment.<init>(JDBCDeployment.java:25)
    at weblogic.jdbc.module.JDBCDeploymentFactory.createDeployment(JDBCDeploymentFactory.java:79)
    at weblogic.application.internal.DeploymentManagerImpl.createDeployment(DeploymentManagerImpl.java:186)
    at weblogic.application.internal.DeploymentManagerImpl.access$700(DeploymentManagerImpl.java:52)
    at weblogic.application.internal.DeploymentManagerImpl$DeploymentCreatorImpl.createDeployment(DeploymentManagerImpl.java:583)
    at weblogic.deploy.internal.targetserver.BasicDeployment.createDeployment(BasicDeployment.java:231)
    at weblogic.deploy.internal.targetserver.operations.ActivateOperation.createAndPrepareContainer(ActivateOperation.java:223)
    at weblogic.deploy.internal.targetserver.operations.ActivateOperation.doPrepare(ActivateOperation.java:103)
    at weblogic.deploy.internal.targetserver.operations.AbstractOperation.prepare(AbstractOperation.java:241)
    at weblogic.deploy.internal.targetserver.DeploymentManager.handleDeploymentPrepare(DeploymentManager.java:794)
    at weblogic.deploy.internal.targetserver.DeploymentManager.prepareDeploymentList(DeploymentManager.java:1340)
    at weblogic.deploy.internal.targetserver.DeploymentManager.handlePrepare(DeploymentManager.java:267)
    at weblogic.deploy.internal.targetserver.DeploymentServiceDispatcher.prepare(DeploymentServiceDispatcher.java:177)
    at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.doPrepareCallback(DeploymentReceiverCallbackDeliverer.java:186)
    at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer.access$000(DeploymentReceiverCallbackDeliverer.java:14)
    at weblogic.deploy.service.internal.targetserver.DeploymentReceiverCallbackDeliverer$1.run(DeploymentReceiverCallbackDeliverer.java:47)
    at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:666)
    at weblogic.invocation.ComponentInvocationContextManager._runAs(ComponentInvocationContextManager.java:348)
    at weblogic.invocation.ComponentInvocationContextManager.runAs(ComponentInvocationContextManager.java:333)
    at weblogic.work.LivePartitionUtility.doRunWorkUnderContext(LivePartitionUtility.java:54)
    at weblogic.work.PartitionUtility.runWorkUnderContext(PartitionUtility.java:41)
    at weblogic.work.SelfTuningWorkManagerImpl.runWorkUnderContext(SelfTuningWorkManagerImpl.java:640)
    at weblogic.work.ExecuteThread.execute(ExecuteThread.java:406)
    at weblogic.work.ExecuteThread.run(ExecuteThread.java:346)
> 

应用程序确实安装（State=“Installed”），但无法启动。如果我们删除并重新安装它，则不会发生错误，其状态为“活动”，我们可以测试应用程序。然而，当服务器重新启动时，上述异常会出现在日志中，并且应用程序处于“ADMIN”状态。它无法启动，因此我们将其删除，并通过管理控制台重新安装，然后运行它，让我们对其进行测试。

应用程序中确实有J2EE组件，至少是web应用程序，因为这是我们正在测试的。一旦我们删除应用程序并从管理控制台重新安装它，我们就会在部署摘要页面的“模块和组件”部分看到web应用程序、所有EJB和EJB模块。

我们查看了WebLogic代码，找到了产生错误的地方。似乎没有为应用程序生成组件MBean。这来自weblogic。jdbc。单元JDBCDeployment类：

private static Module createModule(AppDeploymentMBean mbean) throws DeploymentException {
    ComponentMBean[] c = mbean.getAppMBean().getComponents();
    if ((c == null) || (c.length == 0)) {
        throw new DeploymentException("Application " + ApplicationVersionUtils.getDisplayName(mbean) + " does not have any Components in it.");
    }
    --[snipped]--

我们需要做什么来部署分解的EAR，以便WebLogic 12c在应用程序最初加载时识别组件？

提前感谢您可能有的任何帮助或见解。

Answer 1

多亏了Emmanuel Collin的建议，通过重命名与应用程序同名的数据源解决了此问题。

1. 删除应用程序

应用程序安装没有错误，并且在服务器启动后可用。