1

我正在尝试在我的本地主机上部署 apache usergrid 堆栈。我将 ROOT.war 放入 /vat/lib/tomcat7/webapps。当我访问http://localhost:8080时重新启动tomcat后，我什么也没有得到响应。当我检查 tomcat 的日志时，我在 localhost 日志中收到以下错误。

    Mar 19, 2016 5:51:10 AM org.apache.catalina.core.ApplicationContext log
INFO: No Spring WebApplicationInitializer types detected on classpath
Mar 19, 2016 5:51:10 AM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Error configuring application listener of class org.apache.usergrid.rest.ShutdownListener
java.lang.UnsupportedClassVersionError: org/apache/usergrid/rest/ShutdownListener : Unsupported major.minor version 52.0 (unable to load class org.apache.usergrid.rest.ShutdownListener)
    at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2948)
    at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1208)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1688)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1569)
    at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:529)
    at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:511)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:139)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4888)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5467)
    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:632)
    at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1073)
    at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1857)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:701)
Mar 19, 2016 5:51:10 AM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Skipped installing application listeners due to previous error(s)

如果有人有解决方案，请帮忙。

4

1 回答 1

0

UnsupportedClassVersionError 异常通常意味着您试图在旧版本的 Java 上运行一些为较新版本的 Java 编译的 Java 代码。

Usergrid 2 需要 Java 8，因此请确保您使用的是 Java 8 JDK。

有关要求和说明，请参阅 Usergrid 部署指南： https ://usergrid.apache.org/docs/installation/deployment-guide.html

于 2016-03-28T13:28:02.633 回答