前段時間,我發現此解決方案爲adding a link to a pdf。如果偶爾使用,它就像一個魅力一樣(在每次使用之間重新啓動服務器)。我發現,由於某些原因(我不是很有經驗的Java和iText的)嘗試運行此腳本第二次(無需重新啓動)時,ColdFusion的返回錯誤:然後實例化Java對象時發生異常(ColdFusion)
Object instantiation exception.
An exception occurred while instantiating a Java object. The class must not be an interface or an abstract class. Error: ''.
ColdFusion的指示這導致錯誤的線似乎是:
pdfReader = createObject("java","com.lowagie.text.pdf.PdfReader").init(inputPath);
誰知道更多關於這一點,有一個解決方案,也可以解釋,爲什麼出現這種情況?我認爲,在java內部創建'java'對象的過程不會在CF內部生存。
堆棧跟蹤:
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at coldfusion.runtime.java.JavaProxy.CreateObject(JavaProxy.java:166)
at coldfusion.runtime.java.JavaProxy.invoke(JavaProxy.java:80)
at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:2360)
at cfSched_PushJobs2MultiPress32ecfm1907554548._factor16(E:\Inetpub\DashBoards\MultiPress\Sched_PushJobs2MultiPress3.cfm:549)
at cfSched_PushJobs2MultiPress32ecfm1907554548._factor17(E:\Inetpub\DashBoards\MultiPress\Sched_PushJobs2MultiPress3.cfm:547)
at cfSched_PushJobs2MultiPress32ecfm1907554548._factor45(E:\Inetpub\DashBoards\MultiPress\Sched_PushJobs2MultiPress3.cfm:543)
at cfSched_PushJobs2MultiPress32ecfm1907554548._factor25(E:\Inetpub\DashBoards\MultiPress\Sched_PushJobs2MultiPress3.cfm)
at cfSched_PushJobs2MultiPress32ecfm1907554548._factor49(E:\Inetpub\DashBoards\MultiPress\Sched_PushJobs2MultiPress3.cfm:512)
at cfSched_PushJobs2MultiPress32ecfm1907554548._factor51(E:\Inetpub\DashBoards\MultiPress\Sched_PushJobs2MultiPress3.cfm:509)
at cfSched_PushJobs2MultiPress32ecfm1907554548._factor53(E:\Inetpub\DashBoards\MultiPress\Sched_PushJobs2MultiPress3.cfm:461)
at cfSched_PushJobs2MultiPress32ecfm1907554548._factor58(E:\Inetpub\DashBoards\MultiPress\Sched_PushJobs2MultiPress3.cfm:213)
at cfSched_PushJobs2MultiPress32ecfm1907554548._factor129(E:\Inetpub\DashBoards\MultiPress\Sched_PushJobs2MultiPress3.cfm:207)
at cfSched_PushJobs2MultiPress32ecfm1907554548._factor146(E:\Inetpub\DashBoards\MultiPress\Sched_PushJobs2MultiPress3.cfm:102)
at cfSched_PushJobs2MultiPress32ecfm1907554548.runPage(E:\Inetpub\DashBoards\MultiPress\Sched_PushJobs2MultiPress3.cfm:1)
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:360)
at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40)
at coldfusion.filter.PathFilter.invoke(PathFilter.java:94)
at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:70)
at coldfusion.filter.BrowserDebugFilter.invoke(BrowserDebugFilter.java:79)
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.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$DownstreamMetrics.invokeRunnable(ThreadPool.java:320)
at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:428)
at jrunx.scheduler.ThreadPool$UpstreamMetrics.invokeRunnable(ThreadPool.java:266)
at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)
Caused by: java.io.IOException: Map failed
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:758)
at com.lowagie.text.pdf.MappedRandomAccessFile.init(Unknown Source)
at com.lowagie.text.pdf.MappedRandomAccessFile.<init>(Unknown Source)
at com.lowagie.text.pdf.RandomAccessFileOrArray.<init>(Unknown Source)
at com.lowagie.text.pdf.RandomAccessFileOrArray.<init>(Unknown Source)
at com.lowagie.text.pdf.PRTokeniser.<init>(Unknown Source)
at com.lowagie.text.pdf.PdfReader.<init>(Unknown Source)
at com.lowagie.text.pdf.PdfReader.<init>(Unknown Source)
... 48 more
Caused by: java.lang.OutOfMemoryError: Map failed
at sun.nio.ch.FileChannelImpl.map0(Native Method)
at sun.nio.ch.FileChannelImpl.map(FileChannelImpl.java:755)
... 55 more
使用Java對象,錯誤的實際原因包含在[堆棧跟蹤](http://help.adobe.com/en_US/ColdFusion/9.0/Developing/WSc3ff6d0ea77859461172e0811cbec22c24-7d24.html)。請使用堆棧跟蹤更新您的問題。 – Leigh