小编Nar*_*goo的帖子

我怎么解决这个问题？ 

哪个是最佳选择，以及如何做到这一点

1. 设置唯一的poolName
2. 销毁先前的连接池

在此处输入图片说明

org.apache.catalina.core.ApplicationContext.log Initializing Spring embedded WebApplicationContext
11-Aug-2018 16:05:53.863 SEVERE [Catalina-startStop-1] org.apache.catalina.core.ContainerBase.startInternal A child container failed during start
 java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[sss].StandardContext[]]
        at java.util.concurrent.FutureTask.report(FutureTask.java:122)
        at java.util.concurrent.FutureTask.get(FutureTask.java:192)
        at ..........
...............
......
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[sss].StandardContext[]]
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:167)
        ... 6 more
Caused by: org.springframework.jmx.export.UnableToRegisterMBeanException: Unable to register MBean [HikariDataSource (HikariPool-2)] with key 'dataSource'; nested exception is javax.management.InstanceAlreadyExistsException: com.zaxxer.hikari:name=dataSource,type=HikariDataSource
        at org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:625)
        at 
..........................

org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5245)
        at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
        ... 6 more
Caused by: javax.management.InstanceAlreadyExistsException: com.zaxxer.hikari:name=dataSource,type=HikariDataSource …

为什么应用商店连接网页上的活动选项卡有时会消失？