学步园

从昨天开始系统学习struts2，不过在第一个例子:HelloWorld的时候就出现问题了。按照网上的教程写好例子，在Eclipse里运行。提示下面的错误：2010-11-24 15:51:32 org.apache.catalina.core.AprLifecycleListener init<br /> 信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:/Program Files/Java/jre6/bin;.;C:/Windows/Sun/Java/bin;C:/Windows/system32;C:/Windows;C:/Program Files/Java/jdk1.6.0_21/bin/../jre/bin/client;C:/Program Files/Java/jdk1.6.0_21/bin/../jre/bin;C:/Program Files/Common Files/Microsoft Shared/Windows Live;C:/Program Files/Java/jdk1.6.0_21/bin;C:/Program Files/Java/jre6/bin;C:/Windows/system32;C:/Windows;C:/Windows/System32/Wbem;C:/Windows/System32/WindowsPowerShell/v1.0/;C:/Program Files/ATI Technologies/ATI.ACE/Core-Static;C:/Program Files/Intel/DMIX;C:/Program Files/Common Files/Thunder Network/KanKan/Codecs;C:/Program Files/Windows Live/Shared;C:/Program Files/TortoiseSVN/bin;D:/Program Files/IDM Computer Solutions/UltraEdit/<br /> 2010-11-24 15:51:32 org.apache.tomcat.util.digester.SetPropertiesRule begin<br /> 警告: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:MyFirstStruts' did not find a matching property.<br /> 2010-11-24 15:51:32 org.apache.coyote.http11.Http11Protocol init<br /> 信息: Initializing Coyote HTTP/1.1 on http-8080<br /> 2010-11-24 15:51:32 org.apache.catalina.startup.Catalina load<br /> 信息: Initialization processed in 382 ms<br /> 2010-11-24 15:51:32 org.apache.catalina.core.StandardService start<br /> 信息: Starting service Catalina<br /> 2010-11-24 15:51:32 org.apache.catalina.core.StandardEngine start<br /> 信息: Starting Servlet Engine: Apache Tomcat/6.0.29<br /> 2010-11-24 15:51:32 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info<br /> 信息: Parsing configuration file [struts-default.xml]<br /> 2010-11-24 15:51:32 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info<br /> 信息: Unable to locate configuration files of the name struts-plugin.xml, skipping<br /> 2010-11-24 15:51:32 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info<br /> 信息: Parsing configuration file [struts-plugin.xml]<br /> 2010-11-24 15:51:33 com.opensymphony.xwork2.util.logging.commons.CommonsLogger info<br /> 信息: Parsing configuration file [struts.xml]<br /> 2010-11-24 15:51:33 com.opensymphony.xwork2.util.logging.commons.CommonsLogger error<br /> 严重: Dispatcher initialization failed<br /> java.lang.RuntimeException: java.lang.reflect.InvocationTargetException<br /> at com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector.inject(ContainerImpl.java:295)<br /> at com.opensymphony.xwork2.inject.ContainerImpl$ConstructorInjector.construct(ContainerImpl.java:431)<br /> at com.opensymphony.xwork2.inject.ContainerBuilder$5.create(ContainerBuilder.java:207)<br /> at com.opensymphony.xwork2.inject.Scope$2$1.create(Scope.java:51)<br /> at com.opensymphony.xwork2.inject.ContainerBuilder$3.create(ContainerBuilder.java:93)<br /> at com.opensymphony.xwork2.inject.ContainerBuilder$7.call(ContainerBuilder.java:487)<br /> at com.opensymphony.xwork2.inject.ContainerBuilder$7.call(ContainerBuilder.java:484)<br /> at com.opensymphony.xwork2.inject.ContainerImpl.callInContext(ContainerImpl.java:574)<br /> at com.opensymphony.xwork2.inject.ContainerBuilder.create(ContainerBuilder.java:484)<br /> at com.opensymphony.xwork2.config.impl.DefaultConfiguration.createBootstrapContainer(DefaultConfiguration.java:252)<br /> at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:193)<br /> at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)<br /> at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:371)<br /> at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:415)<br /> at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:190)<br /> at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)<br /> at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)<br /> at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)<br /> at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4001)<br /> at org.apache.catalina.core.StandardContext.start(StandardContext.java:4651)<br /> at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)<br /> at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)<br /> at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)<br /> at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)<br /> at org.apache.catalina.core.StandardService.start(StandardService.java:519)<br /> at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)<br /> at org.apache.catalina.startup.Catalina.start(Catalina.java:581)<br /> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br /> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)<br /> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)<br /> at java.lang.reflect.Method.invoke(Unknown Source)<br /> at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)<br /> at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)<br /> Caused by: java.lang.reflect.InvocationTargetException<br /> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br /> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)<br /> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)<br /> at java.lang.reflect.Method.invoke(Unknown Source)<br /> at com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector.inject(ContainerImpl.java:293)<br /> ... 32 more<br /> Caused by: java.lang.ExceptionInInitializerError<br /> at com.opensymphony.xwork2.ognl.OgnlValueStackFactory.setContainer(OgnlValueStackFactory.java:85)<br /> ... 37 more<br /> Caused by: java.lang.IllegalArgumentException: Javassist library is missing in classpath! Please add missed dependency!<br /> at ognl.OgnlRuntime.<clinit>(OgnlRuntime.java:165)<br /> ... 38 more<br /> Caused by: java.lang.ClassNotFoundException: javassist.ClassPool<br /> at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1645)<br /> at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491)<br /> at java.lang.Class.forName0(Native Method)<br /> at java.lang.Class.forName(Unknown Source)<br /> at ognl.OgnlRuntime.<clinit>(OgnlRuntime.java:162)<br /> ... 38 more<br /> 2010-11-24 15:51:33 org.apache.catalina.core.StandardContext filterStart<br /> 严重: Exception starting filter struts2<br /> java.lang.reflect.InvocationTargetException - Class: com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector<br /> File: ContainerImpl.java<br /> Method: inject<br /> Line: 295 - com/opensymphony/xwork2/inject/ContainerImpl.java:295:-1<br /> at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:428)<br /> at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:190)<br /> at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)<br /> at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)<br /> at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)<br /> at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4001)<br /> at org.apache.catalina.core.StandardContext.start(StandardContext.java:4651)<br /> at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)<br /> at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)<br /> at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)<br /> at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)<br /> at org.apache.catalina.core.StandardService.start(StandardService.java:519)<br /> at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)<br /> at org.apache.catalina.startup.Catalina.start(Catalina.java:581)<br /> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br /> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)<br /> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)<br /> at java.lang.reflect.Method.invoke(Unknown Source)<br /> at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)<br /> at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)<br /> Caused by: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException<br /> at com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector.inject(ContainerImpl.java:295)<br /> at com.opensymphony.xwork2.inject.ContainerImpl$ConstructorInjector.construct(ContainerImpl.java:431)<br /> at com.opensymphony.xwork2.inject.ContainerBuilder$5.create(ContainerBuilder.java:207)<br /> at com.opensymphony.xwork2.inject.Scope$2$1.create(Scope.java:51)<br /> at com.opensymphony.xwork2.inject.ContainerBuilder$3.create(ContainerBuilder.java:93)<br /> at com.opensymphony.xwork2.inject.ContainerBuilder$7.call(ContainerBuilder.java:487)<br /> at com.opensymphony.xwork2.inject.ContainerBuilder$7.call(ContainerBuilder.java:484)<br /> at com.opensymphony.xwork2.inject.ContainerImpl.callInContext(ContainerImpl.java:574)<br /> at com.opensymphony.xwork2.inject.ContainerBuilder.create(ContainerBuilder.java:484)<br /> at com.opensymphony.xwork2.config.impl.DefaultConfiguration.createBootstrapContainer(DefaultConfiguration.java:252)<br /> at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:193)<br /> at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)<br /> at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:371)<br /> at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:415)<br /> ... 19 more<br /> Caused by: java.lang.reflect.InvocationTargetException<br /> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)<br /> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)<br /> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)<br /> at java.lang.reflect.Method.invoke(Unknown Source)<br /> at com.opensymphony.xwork2.inject.ContainerImpl$MethodInjector.inject(ContainerImpl.java:293)<br /> ... 32 more<br /> Caused by: java.lang.ExceptionInInitializerError<br /> at com.opensymphony.xwork2.ognl.OgnlValueStackFactory.setContainer(OgnlValueStackFactory.java:85)<br /> ... 37 more<br /> Caused by: java.lang.IllegalArgumentException: Javassist library is missing in classpath! Please add missed dependency!<br /> at ognl.OgnlRuntime.<clinit>(OgnlRuntime.java:165)<br /> ... 38 more<br /> Caused by: java.lang.ClassNotFoundException: javassist.ClassPool<br /> at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1645)<br /> at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1491)<br /> at java.lang.Class.forName0(Native Method)<br /> at java.lang.Class.forName(Unknown Source)<br /> at ognl.OgnlRuntime.<clinit>(OgnlRuntime.java:162)<br /> ... 38 more<br /> 2010-11-24 15:51:33 org.apache.catalina.core.StandardContext start<br /> 严重: Error filterStart<br /> 2010-11-24 15:51:33 org.apache.catalina.core.StandardContext start<br /> 严重: Context [/MyFirstStruts] startup failed due to previous errors<br /> 2010-11-24 15:51:33 org.apache.catalina.loader.WebappClassLoader clearThreadLocalMap<br /> 严重: The web application [/MyFirstStruts] created a ThreadLocal with key of type [null] (value [com.opensymphony.xwork2.inject.ContainerImpl$10@3c2378]) and a value of type [java.lang.Object[]] (value [[Ljava.lang.Object;@3cc262]) but failed to remove it when the web application was stopped. This is very likely to create a memory leak.<br />
 

在遍访了度娘和谷歌大婶后，终于找到了一位前辈的解决办法，

原来是struts2的jar里面。除了基本的：

commons-logging-1.0.4.jar

freemarker-2.3.16.jar

ognl-3.0.jar

struts2-core-2.2.1.jar

xwork-core-2.2.1.jar

以外，还要导入：

commons-fileupload-1.2.1.jar

commons-io-1.3.2.jar

javassist-3.7.ga.jar
（
在E:/software/struts-2.2.1/apps
/struts2-blank-2.2.1.war中）

将这三个包加到工程里面后，在运行，就好了。

而且在eclipse中开发struts2工程时，要注意，发布过程中，要确定一下，eclipse是否将src下的struts。xml文件发布到WEB-INF中的classes中。

如果没有的话，还需要手动的发布一下。