Pessoal, estou começando a trabalhar com Struts 2 e pela primeira vez estou usando o eclipse.
Estou tentando criar uma aplicação bem simples utilizando o Struts 2, no entanto aparecem alguns erros.
Tutoriais que estou seguindo:
Apostila Caelum FJ-21 - Java Web (pág 124)
Passos:
Criei um Dynamic Web Project,
Inseri um arquivo index.jsp vazio
e executei usando o Tomcat 6 <<-- até aqui foi numa boa!
Inseri as seguintes bibliotecas na pasta WEB-INF/lib
commons-fileupload-1.2.2.jar
commons-io-2.0.1.jar
commons-logging-1.1.1.jar
commons-api-1.1.jar
freemarker-2.3.16.jar
javassist-3.11.0.GA.jar
ognl-3.0.1.jar
struts2-convention-plugin-2.2.3.jar
struts2-core-2.2.3.jar
xwork-core-2.2.3.jar
Todas estas libs eu baixei hoje do site oficial do struts, versão 2.2.3.
Ao adicionar os filtros no arquivo web.xml
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
Quando eu executo o projeto aparece o seguinte erro no console:
SEVERE: Exception starting filter struts2
Unable to load configuration. - bean - jar:file:/C:/Users/danilo.braga/Documents/MyWorkspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/TesteStruts/WEB-INF/lib/struts2-core-2.2.3.jar!/struts-default.xml:29:72
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:437)
at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:195)
at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:275)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:397)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3800)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4450)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:722)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at org.apache.catalina.core.StandardService.start(StandardService.java:516)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:583)
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:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: Unable to load configuration. - bean - jar:file:/C:/Users/danilo.braga/Documents/MyWorkspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/TesteStruts/WEB-INF/lib/struts2-core-2.2.3.jar!/struts-default.xml:29:72
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:69)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:380)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:424)
... 19 more
Caused by: Unable to load bean: type: class:com.opensymphony.xwork2.ObjectFactory - bean - jar:file:/C:/Users/danilo.braga/Documents/MyWorkspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/TesteStruts/WEB-INF/lib/struts2-core-2.2.3.jar!/struts-default.xml:29:72
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:232)
at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:101)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:180)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
... 21 more
Caused by: Bean type class com.opensymphony.xwork2.ObjectFactory with the name xwork has already been loaded by bean - jar:file:/C:/Program%20Files/Tomcat-6/Tomcat6/lib/struts2-core-2.1.8.1.jar!/struts-default.xml:29:72 - bean - jar:file:/C:/Users/danilo.braga/Documents/MyWorkspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/TesteStruts/WEB-INF/lib/struts2-core-2.2.3.jar!/struts-default.xml:29:72
at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:216)
... 24 more
Aug 8, 2011 9:35:35 AM org.apache.catalina.core.StandardContext start
SEVERE: Error filterStart
Já vi um erro parecido aqui no GUJ, http://www.guj.com.br/java/129955-problemas-com-struts-2-resolvido,
mas não resolveu comigo.
Se alguém puder me ajudar!!
Muito Obrigado!!!