请教各位大神，我的struts配置有错吗，帮我看看

<package name="admin" namespace="/admin" extends="default">

    <action name="*_*" class="action.{1}Action" method="{2}">

    <result name="course_query_success">/courses/Course_query_success.jsp</result>

<result name="course_delete_success" type="chain" >Course_query</result>

<result name="course_add_success">/courses/Course_add_success.jsp</result>

<result name="course_modify_success">/courses/Course_modify.jsp</result>

<result name="course_save_success">/courses/Course_modify_success.jsp</result>

<result name="course_queryByCid">/courses/Course_queryByCid.jsp</result>

</action>

<action name="*_*" class="action.{1}Action" method="{2}">

<result name="classes_query_success">/classes/Class_query_success.jsp</result>

<result name="classes_delete_success" type="chain" >Ban_query</result>

<result name="classes_add_success">/classes/Class_add_success.jsp</result>

<result name="classes_modify_success">/classes/Class_modify.jsp</result>

<result name="classes_save_success">/classes/Class_modify_success.jsp</result>

</action>

<action name="*_*" class="action.{1}Action" method="{2}">

<result name="teacher_query_success">/teachers/Teacher_query_success.jsp</result>

<result name="teacher_delete_success" type="chain" >Teacher_query</result>

<result name="teacher_add_success">/teachers/Teacher_add_success.jsp</result>

<result name="teacher_modify_success">/teachers/Teacher_modify.jsp</result>

<result name="teacher_save_success">/teachers/Teacher_modify_success.jsp</result>

</action>

    </package>

出错信息：

No result defined for action action.BanAction and result classes_query_success - action - file:/E:/eclipse%20jee/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp1/wtpwebapps/myProject/WEB-INF/classes/struts.xml:33:60

at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:371)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:273)

at org.apache.struts2.interceptor.DeprecationInterceptor.intercept(DeprecationInterceptor.java:41)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:167)

at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)

at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:76)

at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:229)

at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:229)

at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:125)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:253)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)

at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:139)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)

at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:244)

at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)

at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:564)

at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:81)

at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:99)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

at java.lang.Thread.run(Thread.java:745)