J'émigre un projet de Struts 2.3.3 à 2.5.12 Struts et je vois NullPointerException lorsque vous utilisez la méthode getText de ActionSupport classe.Struts2.5.12 - NPE tout en utilisant la méthode de getText ActionSupport
Ma classe d'action étend la classe ActionSupport. J'ai le fichier package.properties également emballé dans le fichier war.
Ma classe d'action ressemble à:
public class MyAction extends ActionSupport {
private List<String> months = new ArrayList<>(
Arrays.asList(getText("date.month.default"), "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12"));
}
Et dans le fichier package.properties Je
date.month.default=MM
Je vois l'exception ci-dessous lorsque le haricot pour ma classe d'action est instancié. Est-ce que quelqu'un sait si je fais quelque chose de mal ici?
ERROR DefaultDispatcherErrorHandler Exception occurred during processing request: Unable to instantiate Action, entryAction, defined for 'entry' in namespace '/'Error creating bean with name 'entryAction' defined in "/D:/Software/JBossEAP/jboss-eap-7.0/bin/content/Member.war/WEB-INF/classes/my/company/member/web/action/entry/spring-context.xml": Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [my.company.member.web.action.entry.EntryAction]: Constructor threw exception; nested exception is java.lang.NullPointerException
Unable to instantiate Action, entryAction, defined for 'entry' in namespace '/'Error creating bean with name 'entryAction' defined in "/D:/Software/JBossEAP/jboss-eap-7.0/bin/content/Member.war/WEB-INF/classes/my/company/member/web/action/entry/spring-context.xml": Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [my.company.member.web.action.entry.EntryAction]: Constructor threw exception; nested exception is java.lang.NullPointerException - action - vfs:/D:/Software/JBossEAP/jboss-eap-7.0/bin/content/Member.war/WEB-INF/classes/struts-default.xml:133:44
at com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:318)
at com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.java:399)
at com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:204)
at org.apache.struts2.factory.StrutsActionProxy.prepare(StrutsActionProxy.java:62)
at org.apache.struts2.factory.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.java:37)
at com.opensymphony.xwork2.DefaultActionProxyFactory.createActionProxy(DefaultActionProxyFactory.java:58)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:567)
at org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:81)
at org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:143)
at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
at org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:285)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:264)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:81)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:175)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:202)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:792)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entryAction' defined in "/D:/Software/JBossEAP/jboss-eap-7.0/bin/content/Member.war/WEB-INF/classes/my/company/member/web/action/entry/spring-context.xml": Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [my.company.member.web.action.entry.EntryAction]: Constructor threw exception; nested exception is java.lang.NullPointerException
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:965)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:911)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1075)
at com.opensymphony.xwork2.spring.SpringObjectFactory.buildBean(SpringObjectFactory.java:159)
at com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.java:172)
at com.opensymphony.xwork2.factory.DefaultActionFactory.buildAction(DefaultActionFactory.java:22)
at com.opensymphony.xwork2.ObjectFactory.buildAction(ObjectFactory.java:137)
at com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.java:299)
... 37 more
Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [my.company.member.web.action.entry.EntryAction]: Constructor threw exception; nested exception is java.lang.NullPointerException
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:141)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:74)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:958)
... 48 more
Caused by: java.lang.NullPointerException
at com.opensymphony.xwork2.ActionSupport.getTextProvider(ActionSupport.java:278)
at com.opensymphony.xwork2.ActionSupport.getText(ActionSupport.java:83)
at my.company.member.web.action.MyAction.<init>(MyAction.java:95)
at my.company.member.web.action.entry.EntryAction.<init>(EntryAction.java:22)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:126)
... 50 more
La structure du projet est:
et la guerre construite a structure:
Ci-dessous les fichiers jar sont ajoutés au WEB-INF/lib dans le fichier WAR:
classworlds-1.1.jar
com.springsource.org.aopalliance-1.0.0.jar
comm ons-0.8.jar-
entre communes chaîne-1.2.jar
commons-digesteur-1.8.jar
commons-fileupload-1.2.1.jar
commons-httpclient-3.1.jar
commons-io -2.4.jar
communes-lang3-3.6.jar
commons-validateur-1.3.1.jar
freemarker-2.3.23.jar
gson-2.1.jar
httpclient-4,3-beta1.jar
httpclient-osgi-4.3.jar
httpcore-4.2.2.jar
javassist-3.18.0-GA.jar
jaxrpc-api-1.1.jar
jcifs-1.3.17.jar
log4j-api-2.8.2.jar
OGNL-3.1.12.jar
oro-2.0.8.jar
sérialiseur-2.7.1.jar
ressort AOP-3.0.5.RELEASE.jar
ressort asm-3.0.5.RELEASE. pot
printemps-haricots-3.0.5.RELEASE.jar
spring-context-3.0.5.RELEASE.jar
ressort-cadre-support-3.0.5.RELEASE.jar
ressort-core-3.0.5.RELEASE.jar
ressort expression 3.0.5.RELEASE.jar
ressort JDBC-3.0.5. RELEASE.jar
spring-jms-3.0.5.RELEASE.jar
spring-orm-3.0.5.RELEASE.jar
printemps-à distance-2.0.8.jar
ressort-tx-3.0.5.RELEASE.jar
ressort-web-3.0.5.RELEASE.jar
struts2-core-2.5.12.jar
struts2-json-plugin-05.02.12. jar
struts2-ressort-plugin-2.5.12.jar
Struts2-tiles-plugin-2.5.12.jar
tuiles-api-3.0.7.jar
tuiles-Balise automatique-core-runtime-1,2. pot
tiles-core-3.0.7.jar
tiles-el-3.0.7.jar
tiles-freemarker-3.0.7.jar
tuiles-jsp-3.0.7.jar
tuiles-OGNL-3.0.7.jar
tuiles-demande-api-1.0.6.jar
tuiles-demande-freemarker-1.0.6.jar
tuiles demande-jsp-1.0.6.jar
tuiles demande servlet-1.0.6.jar
tuiles-servlet-3.0.7.jar
tuiles-modèle-3.0.7.jar
wsdl4j- 1.5.1.jar
xml-apis-1.3.02.jar
Pouvez-vous poster le code source de la classe d'action? –
Salut @RomanC, Merci pour votre réponse. J'ai mis à jour ma question maintenant avec le code source de la classe d'action. – Prasann
Ce n'est pas assez d'informations. Si la pile est pleine, vous avez des problèmes avec la gestion des dépendances. –