Struts2+Spring整合时的异常记录 - ClassNotFound

好久没有自己搭Struts2+Spring的环境了，今天冷不丁的撘一下，还真是尴尬啊！

1.ClassNotFound

java.lang.ClassNotFoundException: orderActionat org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)at com.opensymphony.xwork2.util.ClassLoaderUtil.loadClass(ClassLoaderUtil.java:152)at com.opensymphony.xwork2.ObjectFactory.getClassInstance(ObjectFactory.java:108)at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.verifyAction(XmlConfigurationProvider.java:472)at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:426)at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:552)at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:292)at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:112)at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:250)at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:446)at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:490)at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4072)at org.apache.catalina.core.StandardContext.start(StandardContext.java:4726)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)at org.apache.catalina.core.StandardService.start(StandardService.java:525)at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)at org.apache.catalina.startup.Catalina.start(Catalina.java:595)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:289)at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)ERROR [main] - Dispatcher initialization failedUnable to load configuration. - action - file:/D:/JavaApp/apache-tomcat-6.0.35/webapps/dop/WEB-INF/classes/struts.xml:9:60at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70)at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:446)at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:490)at org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:74)at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:57)at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295)at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4072)at org.apache.catalina.core.StandardContext.start(StandardContext.java:4726)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)at org.apache.catalina.core.StandardService.start(StandardService.java:525)at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)at org.apache.catalina.startup.Catalina.start(Catalina.java:595)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:289)at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)Caused by: Action class [orderAction] not found - action - file:/D:/JavaApp/apache-tomcat-6.0.35/webapps/dop/WEB-INF/classes/struts.xml:9:60at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.verifyAction(XmlConfigurationProvider.java:482)at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:426)at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:552)at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:292)at org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:112)at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:250)at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67)... 22 more INFO [main] - Closing Root WebApplicationContext: startup date [Thu Sep 12 18:26:23 CST 2013]; root of context hierarchyDEBUG [main] - Returning cached instance of singleton bean 'lifecycleProcessor' INFO [main] - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@10f0625: defining beans [orderAction]; root of factory hierarchy

这个问题是这样发生的，在Struts2的配置文件中：

   <package name="p_order" namespace="/" extends="struts-default">   <action name="save" class="orderAction" method="save">   <result>/index.jsp</result>   </action>   </package>

Spring中是这样的：

<!-- Action --><bean id="orderAction" class="org.ygy.dop.action.OrderAction" scope="prototype"></bean>

最重要的错误在pom.xml中，一个很重要的依赖没有引进来。

<!-- Spring --><dependency><groupId>org.springframework</groupId><artifactId>spring-core</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-beans</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aop</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>${spring.version}</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>${spring.version}</version></dependency><!-- Struts2 --><dependency><groupId>org.apache.struts</groupId><artifactId>struts2-core</artifactId><version>${struts.version}</version></dependency>

然后，运行，我就报错了。

说什么找不到Action，找不到配置文件，肯定是，Struts没有获取到Spring中的Bean，猛然间想到，还有一个插件：

<dependency><groupId>org.apache.struts</groupId><artifactId>struts2-spring-plugin</artifactId><version>${struts.version}</version></dependency>

一个Struts2和Spring整合时使用的jar包。

引入以来之后，世界就清净了。