Caused by: java.lang.ClassNotFoundException: com.alibaba.druid.support.http.StatViewServlet

1、错误描述

严重: Unable to deploy collapsed ear in war StandardEngine[Catalina].StandardHost[localhost].StandardContext[/gerp-back]
org.apache.openejb.OpenEJBException: Unable to load servlet class: com.alibaba.druid.support.http.StatViewServlet: com.alibaba.druid.support.http.StatViewServlet
	at org.apache.openejb.config.WsDeployer.processPorts(WsDeployer.java:234)
	at org.apache.openejb.config.WsDeployer.deploy(WsDeployer.java:72)
	at org.apache.openejb.config.ConfigurationFactory$Chain.deploy(ConfigurationFactory.java:403)
	at org.apache.openejb.config.ConfigurationFactory.configureApplication(ConfigurationFactory.java:971)
	at org.apache.tomee.catalina.TomcatWebAppBuilder.startInternal(TomcatWebAppBuilder.java:1227)
	at org.apache.tomee.catalina.TomcatWebAppBuilder.configureStart(TomcatWebAppBuilder.java:1100)
	at org.apache.tomee.catalina.GlobalListenerSupport.lifecycleEvent(GlobalListenerSupport.java:130)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5472)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652)
	at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1259)
	at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1998)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: com.alibaba.druid.support.http.StatViewServlet
	at org.apache.openejb.core.TempClassLoader.loadClass(TempClassLoader.java:176)
	at org.apache.openejb.core.TempClassLoader.loadClass(TempClassLoader.java:80)
	at org.apache.openejb.config.WsDeployer.processPorts(WsDeployer.java:150)
	... 20 more

2、错误原因

3、解决办法