Question

我的Excel文件中的Sheet1上有一个模板。我可以打开它，将数据放入其中但我无法保存回Sheet1。

<cfspreadsheet 
        action="update" 
        filename = "#theFileCopy#" 
        name = "a" 
        sheetName="Sheet1">

令人愤怒的是，对于更新语句，此代码告诉我Sheet1已经存在。我知道它存在，我想覆盖它。我甚至不能使用action = write将电子表格写入一个全新的文件，因为它给了我一个空指针异常。我甚至尝试将表单添加到不同名称的同一文件中并删除sheet1但是也失败了，另一个空指针！我感到沮丧。为什么这不起作用？

Stack Trace
at cfRelocationForm2ecfc1823847668$funcPRODUCERELOCATIONFORM.runFunction(xxx/RelocationForm.cfc:152) 
 at cfRelocationForm2ecfc1823847668$funcPRODUCERELOCATIONFORM.runFunction(xxx/RelocationForm.cfc:152) 
java.lang.NullPointerException
    at org.apache.poi.xssf.usermodel.XSSFRichTextString.toCTFont(XSSFRichTextString.java:458)
    at org.apache.poi.xssf.usermodel.XSSFRichTextString.getFontOfFormattingRun(XSSFRichTextString.java:397)
    at org.apache.poi.xssf.usermodel.helpers.ColumnHelper.getColumnWidth(ColumnHelper.java:368)
    at org.apache.poi.xssf.usermodel.XSSFSheet.autoSizeColumn(XSSFSheet.java:337)
    at coldfusion.excel.Excel.autoResize(Excel.java:1336)
    at coldfusion.excel.Excel.autoResize(Excel.java:1327)
    at coldfusion.excel.Excel.writeExcel(Excel.java:4824)
    at coldfusion.tagext.lang.SpreadSheetTag.writeToExcel(SpreadSheetTag.java:237)
    at coldfusion.tagext.lang.SpreadSheetTag.doStartTag(SpreadSheetTag.java:157)
    at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:2799)
    at 

cfRelocationForm2ecfc1823847668$funcPRODUCERELOCATIONFORM.runFunction(xxx\RelocationForm.cfc:152)
    at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:472)
    at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invoke(UDFMethod.java:405)
    at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:368)
    at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:55)
    at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:321)
    at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:518)
    at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:660)
    at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:469)
    at coldfusion.filter.ComponentFilter.invoke(ComponentFilter.java:193)
    at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:442)
    at coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:48)
    at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40)
    at coldfusion.filter.PathFilter.invoke(PathFilter.java:112)
    at coldfusion.filter.LicenseFilter.invoke(LicenseFilter.java:30)
    at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:94)
    at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)
    at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
    at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:58)
    at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
    at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
    at coldfusion.xml.rpc.CFCServlet.invoke(CFCServlet.java:155)
    at coldfusion.xml.rpc.CFCServlet.doGet(CFCServlet.java:289)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
    at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42)
    at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)
    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:224)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:928)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:414)
    at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:204)
    at 

org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:539)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:298)
    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:722)

导致错误的行

<cfspreadsheet action="read" src="#theFileCopy#" name="spreadSheetVar" >
    <cfset spreadsheetRemoveSheet(spreadsheetVar,"Relocation Form")> 
    <cfspreadsheet action="write" filename="#theFileCopy#"  name="spreadsheetVar" overwrite="true" >

Answer 1

cfspreadsheet读取将执行xlsx文件但写入不会。令人恼火。这是空指针发生的地方，基本上每当我试图编写电子表格时。

Answer 2

行动=＆＃34;写＆＃34;结合overwrite =＆＃34; true＆＃34;应该这样做。根据Cf文档，UPDATE不允许修改现有工作表，ikt只允许您向excel添加新工作表。因此，您必须使用具有覆盖属性的动作写入。

如何在Coldfusion中更新工作表

2 个答案: