pdf - ColdFusion CFPDFFORM 不会填充 PDF 表单字段

Question

我创建了一个包含两个表单字段(名字和姓氏(或名字和姓氏))的快速 PDF 文件，并使用“提交”按钮，并使用以下代码尝试在新的 PDF 文件中填充这些字段:

<cfpdfform action="populate" source="#variables.AbsPath#\test.pdf">
    <cfpdfformparam name="FirstName" value="foo" />
    <cfpdfformparam name="LastName" value="bar" />
</cfpdfform>

但是，我收到此错误:

The system has attempted to use an undefined value, which usually indicates a programming error, either in your code or some system code.
Null Pointers are another name for undefined values.
Platform, Locale, and Platform Name must not be null

我尝试阅读 PDF 文件以确保使用此表单字段正确，它们是:

<cfpdfform action="read" source="#variables.AbsPath#\test.pdf" result="fields" />

<cfdump var="#fields#">

结构转储:

FirstName:  [empty string]
LastName:   [empty string]
Submit:     [empty string]

我尝试搜索 Adob​​e 文档和其他一些网站，但找不到此错误的解决方案。我还尝试向 cfpdfform 标记添加“目标”参数，以防需要，但得到了相同的结果。 PDF 文件确实存在。有任何想法吗？提前致谢。

更新:这是堆栈跟踪:

java.lang.NullPointerException: Platform, Locale, and Platform Name must not be null
at com.adobe.fontengine.fontmanagement.platform.PlatformFontDescription.<init>(Unknown Source)
at com.adobe.fontengine.font.opentype.OpenTypeFont.getPlatformFontDescription(Unknown Source)
at com.adobe.fontengine.font.FontImpl.getPlatformFontDescription(Unknown Source)
at com.adobe.fontengine.font.FontImpl.getPlatformFontDescription(Unknown Source)
at com.adobe.fontengine.fontmanagement.platform.PlatformFontResolverImpl.addFont(Unknown Source)
at com.adobe.internal.pdftoolkit.core.fontset.impl.PDFFontSetImpl.addFont(Unknown Source)
at com.adobe.internal.pdfm.util.FontSetBuilder.loadFontsPath(FontSetBuilder.java:418)
at com.adobe.internal.pdfm.util.FontSetBuilder.loadSystemFonts(FontSetBuilder.java:346)
at com.adobe.internal.pdfm.util.FontSetBuilder.makePDFFontSet(FontSetBuilder.java:239)
at com.adobe.internal.pdfm.util.FontSetBuilder.getPdfFontSet(FontSetBuilder.java:93)
at com.adobe.internal.pdfm.PDFM7Factory.getPdfFontSet(PDFM7Factory.java:97)
at coldfusion.document.DocumentServiceImpl.getAssemblerFontSet(DocumentServiceImpl.java:512)
at coldfusion.pdf.PDFForm.populateFields(PDFForm.java:292)
at coldfusion.tagext.lang.PDFFormTag.doEndTag(PDFFormTag.java:347)
at cfsubmit2ecfm1224790315.runPage(C:\ColdFusion\wwwroot\nVision\projects\test\pdfform\submit.cfm:9)
at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:231)
at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:416)
at coldfusion.filter.CfincludeFilter.invoke(CfincludeFilter.java:65)
at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:381)
at coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:48)
at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40)
at coldfusion.filter.PathFilter.invoke(PathFilter.java:94)
at coldfusion.filter.LicenseFilter.invoke(LicenseFilter.java:27)
at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:70)
at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28)
at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38)
at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:46)
at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38)
at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22)
at coldfusion.filter.CachingFilter.invoke(CachingFilter.java:62)
at coldfusion.filter.RequestThrottleFilter.invoke(RequestThrottleFilter.java:126)
at coldfusion.CfmServlet.service(CfmServlet.java:200)
at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:89)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:86)
at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:42)
at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:46)
at jrun.servlet.FilterChain.doFilter(FilterChain.java:94)
at jrun.servlet.FilterChain.service(FilterChain.java:101)
at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:106)
at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:286)
at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:543)
at jrun.servlet.jrpp.JRunProxyService.invokeRunnable(JRunProxyService.java:203)
at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)

Answer 1

我认为这是所使用的特定服务器的字体问题。这就是为什么相同的代码可以在生产服务器上运行而不是在测试服务器上运行。我遇到了同样的问题，虽然我没有很好的解决方案，但这就是我学到的东西。

1. 堆栈跟踪显示获取 OpenType 字体的 getPlatformFontDescription 时出错。
2. 我们的 Windows 服务器将一些 TrueType 字体列为 OpenType。是你的吗？

3. 使用以下代码纠正了该问题，但这只是一种解决方法。

   <cfpdf name="local.pdffile" action="read" source="some path" >
   <cfscript>
   local.pdfReader = createObject("java", "com.lowagie.text.pdf.PdfReader").init(tobinary(local.pdffile));
   local.outputStream = createObject("java", "java.io.ByteArrayOutputStream").init();
   local.pdfStamper = createObject("java", "com.lowagie.text.pdf.PdfStamper").init(local.pdfReader,local.outputStream);
   local.Acroform = local.pdfStamper.getAcroFields();
   //Populating Form Fields     
    local.Acroform.setField("Field1",Arguments.Value1);
    local.Acroform.setField("Field2",Arguments.Value2);
    // etc.
    local.pdfStamper.setFormFlattening(true); //optional
     local.pdfStamper.close();
     local.pdfReader.close();
     local.pdffile = local.outputStream.toByteArray();
    </cfscript>
    <!--- flatten="no" must be set or you will get the error again  --->
    <cfpdf action="write" source="local.pdffile" destination="#variables.OutputPath##local.UUID#.pdf" overwrite="yes" flatten="no"  />
   

4. 更多诊断:使用 Java 子系统简单地列出服务器可用的所有字体也会失败。试试这个。

    <cfset list=createobject("java","com.adobe.internal.pdfm.util.FontSetBuilder")>
    <cfdump var="#list#">
    <cfset dummy = list.getPdfFontSet()>
    <cfdump var="#dummy.toString()#">
    <!--- this should fail --->
   

5. 我们目前已经“解决”了我们的问题，从 Windows\Fonts 文件夹中删除了所有字体，并隔离了损坏的字体。虽然很辛苦，但似乎很有效。

祝你好运!