Dandelion DataTableで例外テーブルを作成する

Question

Dandelionライブラリを使用してテーブルを作成しようとしていますが、そのドキュメントDandelionに従っていますが、何らかの理由で大きな例外が発生しています。私はweb.xmlにエントリを設定しました。そして私のJSPページにもタグがあります。私はまだそれを調べているので、表はタイトルを除いて何も持っていません。 :)

のpom.xml

<dependency> 
     <groupId>com.github.dandelion</groupId> 
     <artifactId>datatables-jsp</artifactId> 
     <version>1.1.0</version> 
    </dependency> 

のweb.xml

<!-- Dandelion servlet definition and mapping --> 
<servlet> 
    <servlet-name>dandelionServlet</servlet-name> 
    <servlet-class>com.github.dandelion.core.web.DandelionServlet</servlet-class> 
</servlet> 
<servlet-mapping> 
    <servlet-name>dandelionServlet</servlet-name> 
    <url-pattern>/dandelion-assets/*</url-pattern> 
</servlet-mapping> 

<!-- Dandelion filter definition and mapping --> 
<filter> 
    <filter-name>dandelionFilter</filter-name> 
    <filter-class>com.github.dandelion.core.web.DandelionFilter</filter-class> 
</filter> 
<filter-mapping> 
    <filter-name>dandelionFilter</filter-name> 
    <url-pattern>/*</url-pattern> 
</filter-mapping> 

JSP

<%@ taglib prefix="datatables" uri="http://github.com/dandelion/datatables" %> 

<datatables:table id="myTableId" data="${intgList}" sortable="true"> 
    <datatables:column title="Line of Business"> 

    </datatables:column> 
</datatables:table> 

スタックトレース：

org.apache.tiles.request.render.CannotRenderException: ServletException including path '/jsps/template/template.jsp'. 
at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:399) 
at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:238) 
at org.apache.tiles.TilesContainerWrapper.render(TilesContainerWrapper.java:103) 
at org.apache.tiles.impl.mgmt.CachingTilesContainer.render(CachingTilesContainer.java:126) 
at org.apache.struts2.views.tiles.TilesResult.doExecute(TilesResult.java:161) 
at org.apache.struts2.result.StrutsResultSupport.execute(StrutsResultSupport.java:208) 
at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:373) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:277) 
at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:253) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:177) 
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:260) 
at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:73) 
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.doIntercept(ConversionErrorInterceptor.java:139) 
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:133) 
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:133) 
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:192) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:69) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at org.apache.struts2.interceptor.DateTextFieldInterceptor.intercept(DateTextFieldInterceptor.java:115) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:88) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:246) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:99) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:139) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:155) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:174) 
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at org.apache.struts2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:120) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:171) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:195) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:193) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.mercuryinsurance.esignature.common.interceptor.ESignatureUIActivityInterceptor.intercept(ESignatureUIActivityInterceptor.java:35) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at com.mercuryinsurance.esignature.integration.interceptor.ESignatureIntegrationInterceptor.intercept(ESignatureIntegrationInterceptor.java:145) 
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:247) 
at org.apache.struts2.factory.StrutsActionProxy.execute(StrutsActionProxy.java:54) 
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:564) 
at org.apache.struts2.dispatcher.ExecuteOperations.executeAction(ExecuteOperations.java:81) 
at org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:143) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:316) 
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:126) 
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:90) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) 
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) 
at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilterInternal(BasicAuthenticationFilter.java:213) 
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) 
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:91) 
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) 
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:213) 
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:176) 
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) 
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
at com.github.dandelion.core.web.DandelionFilter.doFilter(DandelionFilter.java:128) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) 
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) 
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) 
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041) 
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603) 
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
at java.lang.Thread.run(Thread.java:745) 
Caused by: java.io.IOException: ServletException including path '/jsps/template/template.jsp'. 
at org.apache.tiles.request.servlet.ServletUtil.wrapServletException(ServletUtil.java:61) 
at org.apache.tiles.request.servlet.ServletRequest.forward(ServletRequest.java:267) 
at org.apache.tiles.request.servlet.ServletRequest.doForward(ServletRequest.java:228) 
at org.apache.tiles.request.AbstractClientRequest.dispatch(AbstractClientRequest.java:57) 
at org.apache.tiles.request.render.DispatchRenderer.render(DispatchRenderer.java:47) 
at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:259) 
at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:397) 
... 96 more 
Caused by: java.io.IOException: JSPException including path '/jsps/integration/integrationView.jsp'. 
at org.apache.tiles.request.servlet.ServletUtil.wrapServletException(ServletUtil.java:61) 
at org.apache.tiles.request.jsp.JspRequest.doInclude(JspRequest.java:125) 
at org.apache.tiles.request.AbstractViewRequest.dispatch(AbstractViewRequest.java:47) 
at org.apache.tiles.request.render.DispatchRenderer.render(DispatchRenderer.java:47) 
at org.apache.tiles.request.render.ChainedDelegateRenderer.render(ChainedDelegateRenderer.java:68) 
at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:259) 
at org.apache.tiles.TilesContainerWrapper.render(TilesContainerWrapper.java:108) 
at org.apache.tiles.template.InsertAttributeModel.renderAttribute(InsertAttributeModel.java:188) 
at org.apache.tiles.template.InsertAttributeModel.execute(InsertAttributeModel.java:132) 
at org.apache.tiles.jsp.taglib.InsertAttributeTag.doTag(InsertAttributeTag.java:299) 
at org.apache.jsp.jsps.template.template_jsp._jspx_meth_tiles_005finsertAttribute_005f2(template_jsp.java:152) 
at org.apache.jsp.jsps.template.template_jsp._jspService(template_jsp.java:87) 
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432) 
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390) 
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749) 
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487) 
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412) 
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339) 
at org.apache.tiles.request.servlet.ServletRequest.forward(ServletRequest.java:265) 
... 101 more 
Caused by: java.lang.ClassCastException: java.math.BigDecimal cannot be cast to java.util.List 
at com.github.dandelion.datatables.jsp.tag.TableTag.doEndTag(TableTag.java:248) 
at org.apache.jsp.jsps.integration.integrationView_jsp._jspx_meth_datatables_005ftable_005f0(integrationView_jsp.java:716) 
at org.apache.jsp.jsps.integration.integrationView_jsp._jspService(integrationView_jsp.java:221) 
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432) 
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390) 
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749) 
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:605) 
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:544) 
at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:954) 
at org.apache.jasper.runtime.PageContextImpl.doInclude(PageContextImpl.java:684) 
at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:678) 
at org.apache.tiles.request.jsp.JspRequest.doInclude(JspRequest.java:123) 
... 127 more 
ERROR DefaultDispatcherErrorHandler Exception occurred during processing request: org.apache.tiles.request.render.CannotRenderException: ServletException including path '/jsps/template/template.jsp'. 

Answer 1

例外によると、intgListはListではなくBigDecimalを返します。リストに戻るには、それを変更する必要があります。