如何解决java版本冲突

当我尝试在UAT服务器中部署时，我发现了以下错误

org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/hr-0.0.1-SNAPSHOT]]
    at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:441)

在谷歌之后，我发现这是版本问题

我的本地系统，其中生成war文件的java版本为1.8.0.162，UAT服务器的java版本为1.8.0.181

如何解决这个问题

24-Aug-2018 23:11:49.820 SEVERE [main] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start: 
 org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/hr-0.0.1-SNAPSHOT]]
    at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:441)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:743)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:719)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:703)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:986)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1858)
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(Unknown Source)
    at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:772)
    at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:426)
    at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1585)
    at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:308)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
    at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:424)
    at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:367)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:969)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:839)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1429)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1419)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
    at java.util.concurrent.AbstractExecutorService.submit(Unknown Source)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:944)
    at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:261)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:682)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)

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尝试在不部署任何应用程序的情况下启动tomcat。这有助于验证问题是否源于您的应用程序或tomcat的错误配置或损坏安装。

您能否提供完整的stacktrace，而不仅仅是前两行？您使用的是什么Tomcat版本？由于不同的版本号（162对181）而导致的版本冲突是极不可能的。这很可能是其他原因，因此请提供更多信息（例如，在此之前发生的完整stacktrace或相关错误）。此异常通常意味着您尝试在较低的JVM版本上运行使用较高JVM版本编译的jar，因为JVM在本地和本地都具有向后兼容性。问题得到解决。重启tomcat，postgres。我不知道发生了什么。现在没有错误了。