以下代码适用于Adobe ColdFusion，但由于迁移到Railo会出现以下错误：
错误消息：数组的索引[0]无效。索引必须是正整数（1,2,3，...）
错误在线开始： local.arrChartDataResult = addPercentageData（local.arrChartDataResult）
知道为什么会这样吗？
<cffunction name="getAverageChartData" hint="I return the data required to render an average chart." returntype="array" output="false">
<cfargument name="surveyList" hint="I am a record set of Surveys." required="true" type="query" />
<cfargument name="filter" hint="I am the optional filter which is to be applied to all results." required="false" default="" type="string" />
<cfset var local=structNew() />
<cfset var rstChartData="" />
<cfset var rstChartDataTotal="" />
<cfset var rstCombinedChartData=queryNew("itemColumn,valueColumn,label","varchar,integer,varchar") />
<cfset local.objQuestion=objQuestionService.get(arguments.surveyList.question_ID[1]) />
<cfset local.intQuestionTypeID = local.objQuestion.getTypeID() />
<cfset local.strSubQuestionList=local.objQuestion.getAnswer() />
<cfset local.strPossibleAnswerList=local.objQuestion.getPossibleAnswer() />
<cfset local.arrChartDataResult=arrayNew(1) />
<!--- loop over each school's survey --->
<cfloop query="arguments.surveyList">
<cfset local.arrChartData = getChartData(arguments.surveyList.survey_id, arguments.surveyList.question_id, arguments.filter) />
<!--- loop over each sub question and append (union) it to a running total --->
<cfloop array="#local.arrChartData#" index="rstChartData">
<cfquery name="rstCombinedChartData" dbtype="query">
SELECT
itemColumn
,valueColumn
,label
FROM
rstCombinedChartData
UNION ALL
SELECT
itemColumn
,CAST(valueColumn AS INTEGER) AS valueColumn
,label
FROM
rstChartData
</cfquery>
</cfloop>
</cfloop>
<cfif local.intQuestionTypeID EQ 17>
<cfquery name="rstChartDataTotal" dbtype="query">
SELECT
itemColumn
,AVG(valueColumn) AS valueColumn
,label
FROM
rstCombinedChartData
GROUP BY
label
,itemColumn
ORDER BY
label DESC
<!---,itemColumn DESC--->
</cfquery>
<cfelse>
<!--- get the totals for each itemColumn --->
<cfquery name="rstChartDataTotal" dbtype="query">
SELECT
itemColumn
,SUM(valueColumn) AS valueColumn
,label
FROM
rstCombinedChartData
GROUP BY
label
,itemColumn
ORDER BY
label DESC
,itemColumn DESC
</cfquery>
</cfif>
<!--- add sort order column to query and populate it with the order in which the sub questions are asked --->
<cfset rstChartDataTotal=orderByQuestion(rstChartDataTotal, local.strSubQuestionList) />
<!--- if this is a one-dimensional question --->
<cfif arrayLen(local.arrChartData) EQ 1>
<cfset local.arrChartDataResult[1]=addPercentageData_Old(rstChartDataTotal) />
<cfelse>
<cfset arrayResize(local.arrChartDataResult, listLen(local.strPossibleAnswerList)) />
<cfoutput query="rstChartDataTotal" group="label">
<cfset local.intPositionInArray=listFindNoCase(local.strPossibleAnswerList, rstChartDataTotal.label, True) />
<cfoutput>
<cfquery name="local.rstChartData" dbtype="query">
SELECT
itemColumn
,valueColumn
,label
,sortOrder
FROM
rstChartDataTotal
WHERE
label = '#rstChartDataTotal.label#'
ORDER BY
sortOrder
</cfquery>
</cfoutput>
<cfset local.arrChartDataResult[local.intPositionInArray]=local.rstChartData>
</cfoutput>
<cfset local.arrChartDataResult=addPercentageData(local.arrChartDataResult) />
</cfif>
<cfreturn local.arrChartDataResult />
</cffunction>
完全错误：
Application Execution Exception
Error Type: expression : 0
Error Messages: Invalid index [0] for array. Index must be a positive integer (1, 2, 3, ...)
Template: /srv/www/testapp/admin/model/response/ResponseService.cfc
Current Event: pdf.createPDF
Current Layout: N/A
Current View: N/A
Bug Date: 07/29/2013 10:53:19 AM
Coldfusion ID: CFID=c07b7b4e-d79e-4688-950d-20f0192a27ca ; CFToken=0 ; JSessionID=4A3B1BC689B4C438DAAF1088A42A6481_c07b7b4e-d79e-4688-950d-20f0192a27ca_0
Template Path : /srv/www/testapp/admin/index.cfm
Path Info : /pdf/createPDF
Host & Server: management.testapp.co.uk:8888 ip-172-31-24-53
Query String:
Referrer: http://management.testapp.co.uk:8888/index.cfm/home?fwreinit=1
Browser: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:22.0) Gecko/20100101 Firefox/22.0
Invalid index [0] for array. Index must be a positive integer (1, 2, 3, ...)
at railo.runtime.type.ArrayImpl.setE(ArrayImpl.java:226):226
at railo.runtime.type.ArrayImpl.set(ArrayImpl.java:205):205
at railo.runtime.type.util.ArraySupport.set(ArraySupport.java:360):360
at railo.runtime.util.VariableUtilImpl.set(VariableUtilImpl.java:437):437
at railo.runtime.PageContextImpl.set(PageContextImpl.java:1266):1266
at model.response.responseservice_cfc$cf._1(/srv/www/testapp/admin/model/response/ResponseService.cfc:268):268
at model.response.responseservice_cfc$cf.udfCall(/srv/www/testapp/admin/model/response/ResponseService.cfc):-1
at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:103):103
at railo.runtime.type.UDFImpl._call(UDFImpl.java:371):371
at railo.runtime.type.UDFImpl.call(UDFImpl.java:284):284
at railo.runtime.ComponentImpl._call(ComponentImpl.java:607):607
at railo.runtime.ComponentImpl._call(ComponentImpl.java:490):490
at railo.runtime.ComponentImpl.call(ComponentImpl.java:1781):1781
at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:723):723
at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1506):1506
at handlers.pdf_cfc$cf.udfCall(/srv/www/testapp/admin/handlers/pdf.cfc:289):289
at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:103):103
at railo.runtime.type.UDFImpl._call(UDFImpl.java:371):371
at railo.runtime.type.UDFImpl.callWithNamedValues(UDFImpl.java:275):275
at railo.runtime.ComponentImpl._call(ComponentImpl.java:608):608
at railo.runtime.ComponentImpl._call(ComponentImpl.java:490):490
at railo.runtime.ComponentImpl.callWithNamedValues(ComponentImpl.java:1796):1796
at railo.runtime.tag.Invoke.doComponent(Invoke.java:209):209
at railo.runtime.tag.Invoke.doEndTag(Invoke.java:182):182
at system.web.controller_cfc$cf._6(/srv/www/testapp/admin/framework/coldbox_standalone_3.0.0.RC1/system/web/Controller.cfc:662):662
at system.web.controller_cfc$cf.udfCall(/srv/www/testapp/admin/framework/coldbox_standalone_3.0.0.RC1/system/web/Controller.cfc):-1
at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:103):103
at railo.runtime.type.UDFImpl._call(UDFImpl.java:371):371
at railo.runtime.type.UDFImpl.call(UDFImpl.java:284):284
at railo.runtime.type.scope.UndefinedImpl.call(UndefinedImpl.java:775):775
at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:723):723
at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1506):1506
at system.web.controller_cfc$cf._5(/srv/www/testapp/admin/framework/coldbox_standalone_3.0.0.RC1/system/web/Controller.cfc:553):553
at system.web.controller_cfc$cf.udfCall(/srv/www/testapp/admin/framework/coldbox_standalone_3.0.0.RC1/system/web/Controller.cfc):-1
at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:103):103
at railo.runtime.type.UDFImpl._call(UDFImpl.java:371):371
at railo.runtime.type.UDFImpl.callWithNamedValues(UDFImpl.java:275):275
at railo.runtime.ComponentImpl._call(ComponentImpl.java:608):608
at railo.runtime.ComponentImpl._call(ComponentImpl.java:490):490
at railo.runtime.ComponentImpl.callWithNamedValues(ComponentImpl.java:1800):1800
at railo.runtime.util.VariableUtilImpl.callFunctionWithNamedValues(VariableUtilImpl.java:749):749
at railo.runtime.PageContextImpl.getFunctionWithNamedValues(PageContextImpl.java:1521):1521
at system.coldbox_cfc$cf._1(/srv/www/testapp/admin/framework/coldbox_standalone_3.0.0.RC1/system/Coldbox.cfc:226):226
at system.coldbox_cfc$cf.udfCall(/srv/www/testapp/admin/framework/coldbox_standalone_3.0.0.RC1/system/Coldbox.cfc):-1
at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:103):103
at railo.runtime.type.UDFImpl._call(UDFImpl.java:371):371
at railo.runtime.type.UDFImpl.call(UDFImpl.java:284):284
at railo.runtime.ComponentImpl._call(ComponentImpl.java:607):607
at railo.runtime.ComponentImpl._call(ComponentImpl.java:490):490
at railo.runtime.ComponentImpl.call(ComponentImpl.java:1781):1781
at railo.runtime.util.VariableUtilImpl.callFunctionWithoutNamedValues(VariableUtilImpl.java:723):723
at railo.runtime.PageContextImpl.getFunction(PageContextImpl.java:1506):1506
at application_cfc$cf.udfCall(/srv/www/rudifferent/admin/Application.cfc:54):54
at railo.runtime.type.UDFImpl.implementation(UDFImpl.java:103):103
at railo.runtime.type.UDFImpl._call(UDFImpl.java:371):371
at railo.runtime.type.UDFImpl.call(UDFImpl.java:284):284
at railo.runtime.ComponentImpl._call(ComponentImpl.java:607):607
at railo.runtime.ComponentImpl._call(ComponentImpl.java:490):490
at railo.runtime.ComponentImpl.call(ComponentImpl.java:1781):1781
at railo.runtime.listener.ModernAppListener.call(ModernAppListener.java:346):346
at railo.runtime.listener.ModernAppListener._onRequest(ModernAppListener.java:107):107
at railo.runtime.listener.MixedAppListener.onRequest(MixedAppListener.java:18):18
at railo.runtime.PageContextImpl.execute(PageContextImpl.java:2255):2255
at railo.runtime.PageContextImpl.execute(PageContextImpl.java:2222):2222
at railo.runtime.engine.CFMLEngineImpl.serviceCFML(CFMLEngineImpl.java:315):315
at railo.loader.servlet.CFMLServlet.service(CFMLServlet.java:29):29
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728):728
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305):305
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210):210
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222):222
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123):123
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472):472
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171):171
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99):99
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118):118
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407):407
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004):1004
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589):589
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312):312
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source):-1
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source):-1
at java.lang.Thread.run(Unknown Source):-1
答案 0 :(得分：4)
我认为你根据你说错误发生的地方发布了相关代码，但我强烈怀疑addPercentageData()中的代码是利用 - 设计还是其他 - 事实ColdFusion按值传递数组。但是，Railo通过引用传递它们，因此当您假设您只是处理函数本地数据的副本时，您可能会干扰调用代码中的数据。
这只是一个有根据的猜测。