求救,学生。。。
net.sf.jasperreports.engine.fill.JRExpressionEvalException: Error evaluating expression :
Source text : it.businesslogic.ireport.barcode.BcImage.getBarcodeImage(13,"0815",false,false,null,0,0)
at net.sf.jasperreports.engine.fill.JREvaluator.evaluate(JREvaluator.java:197)
at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:537)
at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:505)
at net.sf.jasperreports.engine.fill.JRFillElement.evaluateExpression(JRFillElement.java:826)
at net.sf.jasperreports.engine.fill.JRFillImage.evaluateImage(JRFillImage.java:890)
at net.sf.jasperreports.engine.fill.JRFillImage.evaluate(JRFillImage.java:871)
at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:275)
at net.sf.jasperreports.engine.fill.JRFillBand.evaluate(JRFillBand.java:426)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:1380)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:692)
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