Nexus安装遇到的问题

  下载 Nexus并安装，下载OSS的版本，然后放在TOMCAT下面的webapps.


   查看你的TOMCAT的日志，看有没有错误，我遇到的错误是

Error configuring application listener of class org.apache.catalina.deploy.ApplicationListener@4d16318b
java.lang.UnsupportedClassVersionError: org/sonatype/nexus/web/LogConfigListener : Unsupported major.minor version 51.0 (unable to load class org.sonatype.nexus.web.LogConfigListener)
	at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2899)
	at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1173)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1681)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
	at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:527)
	at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:509)
	at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:137)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4854)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:633)
	at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:976)
	at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1653)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)

  错误的原因是，新版本的Nexus使用了的JDK1.7，所以出现的这样的错误，并非所说的缺少什么JAR包