将 Struts 2.3 迁移到 2.5 [英] Migrating Struts 2.3 to 2.5

问题描述

我在 Struts 迁移时遇到了一些问题，我在我的应用程序中使用了 Tiles.以下是错误:

I was facing some issues while Struts migrating, I was using Tiles in my application. Below was the error:

SEVERE: Error deploying web application archive
java.lang.UnsupportedClassVersionError: org/apache/struts2/tiles/StrutsTilesListener: Unsupportedd major.minor version 51.0 (unable to load class org.apache.struts2.tiles.StrutsTilesListener)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2822)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1148)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1643)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
at org.apache.catalina.startup.WebAnnotationSet.loadClassAnnotation(WebAnnotationSet.java:144)
at org.apache.catalina.startup.WebAnnotationSet.loadApplicationListenerAnnotations(WebAnnotationSet.java:73)
at org.apache.catalina.startup.WebAnnotationSet.loadApplicationAnnotations(WebAnnotationSet.java:56)
at org.apache.catalina.startup.ContextConfig.applicationAnnotationsConfig(ContextConfig.java:353)
at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:885)
at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:317)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:89)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5081)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:812)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:787)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:607)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:932)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:723)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:470)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1322)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:89)
at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:379)
at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:324)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1041)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:774)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1033)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:291)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:727)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
at org.apache.catalina.startup.Catalina.start(Catalina.java:620)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:303)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:431)

这是在 web.xml 中使用的过滤器:

This was the filter using in web.xml:

<filter>
  <filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class>
</filter>

推荐答案

class org.apache.struts2.tiles.StrutsTilesListener 的版本为 51.0，对应 Java SE 7.

The version of class org.apache.struts2.tiles.StrutsTilesListener is 51.0 which corresponds to Java SE 7.

您可以使用 Java:不支持的专业.次要版本 51.0 更新您的 Java 安装的解决方案.

You can use Java : Unsupported major.minor version 51.0 solution to update your java installation.

这篇关于将 Struts 2.3 迁移到 2.5的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！