Hi,everybody Thanks for you arriving.I was a new developer in jasper.Today,i have a problem.First i use the ireport to generate a report, and it works.But when i put it to the javaEE project, it doesn't work. Other project in my program is used well.So ,it shouldn't be the question of jar.Here is the error log. ERROR [net.sf.jasperreports.engine.fill.JRAbstractLRUVirtualizer] - Error virtualizing objectjava.io.IOException: 系统找不到指定的路径。at java.io.WinNTFileSystem.createFileExclusively(Native Method)at java.io.File.createNewFile(File.java:883)at net.sf.jasperreports.engine.fill.JRFileVirtualizer.pageOut(JRFileVirtualizer.java:113)at net.sf.jasperreports.engine.fill.JRAbstractLRUVirtualizer.virtualizeData(JRAbstractLRUVirtualizer.java:551)at net.sf.jasperreports.engine.fill.JRAbstractLRUVirtualizer$Cache$LRUScanMap.processRemovedLRU(JRAbstractLRUVirtualizer.java:135)at net.sf.jasperreports.engine.fill.JRAbstractLRUVirtualizer$Cache$LRUScanMap.removeLRU(JRAbstractLRUVirtualizer.java:121)at org.apache.commons.collections.LRUMap.put(LRUMap.java:121)at net.sf.jasperreports.engine.fill.JRAbstractLRUVirtualizer$Cache.put(JRAbstractLRUVirtualizer.java:196)at net.sf.jasperreports.engine.fill.JRAbstractLRUVirtualizer.registerObject(JRAbstractLRUVirtualizer.java:421)at net.sf.jasperreports.engine.base.ElementsBlock.register(VirtualizableElementList.java:231)at net.sf.jasperreports.engine.base.ElementsBlock.preAdd(VirtualizableElementList.java:275)at net.sf.jasperreports.engine.base.ElementsBlock.add(VirtualizableElementList.java:307)at net.sf.jasperreports.engine.base.ElementsBlock.add(VirtualizableElementList.java:317)at net.sf.jasperreports.engine.base.VirtualizableElementList.add(VirtualizableElementList.java:125)at net.sf.jasperreports.engine.base.JRVirtualPrintPage.addElement(JRVirtualPrintPage.java:133)at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillBand(JRVerticalFiller.java:2093)at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillSummaryOverflow(JRVerticalFiller.java:1745)at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillSummaryNoLastFooterSamePage(JRVerticalFiller.java:1129)at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillSummary(JRVerticalFiller.java:1032)at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:174)at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:836)at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:746)at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:58)at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:417)[/code]If you have the answer,please send a email to me,thanks.email address:piggachen@gmail.com
