Java异常情况分析

?

1、开发环境JDK和运行环境JDK版本不匹配(运行环境JDK版本低于开发环境JDK版本)

?

- Error configuring application listener of class com.zd.lundui.web.listener.ConnectPoolListenerjava.lang.UnsupportedClassVersionError: Bad version number in .class fileat java.lang.ClassLoader.defineClass1(Native Method)at java.lang.ClassLoader.defineClass(Unknown Source)at java.security.SecureClassLoader.defineClass(Unknown Source)at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1852)at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:876)at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1329)at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1208)at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3712)at org.apache.catalina.core.StandardContext.start(StandardContext.java:4216)at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:544)at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)at org.apache.catalina.core.StandardService.start(StandardService.java:448)at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)at org.apache.catalina.startup.Catalina.start(Catalina.java:552)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:295)at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)

我的异常网推荐解决方案：org.apache.catalina.loader.WebappClassLoader.loadClass,http://www.myexception.cn/java-web/org.apache.catalina.loader.WebappClassLoader.loadClass.html