如何打印报告

Question

我想打印JR报告。

我想这个代码

JasperPrint jp = new JasperFillManager().fillReport("billReport", billId, 
    "jdbc:mysql://localhost/kpc_hospital"); 
JasperPrintManager.printReport(jp, true) 

但是这个代码不工作。

Answer 1

有许多不同的方法可以用来直接打印Jasper Report，而不是显示Print Dialog。

简单的方法是：

Connection con; 
    String url="jdbc:mysql://localhost/mydb"; 
    Class.forName("com.mysql.jdbc.Driver").newInstance(); 
    con=(Connection) DriverManager.getConnection(url,"root",""); 
    JasperReport jasperReport = JasperCompileManager.compileReport(fileName); 
    JasperPrint print = JasperFillManager.fillReport(jasperReport, parameter, con); 
    print.setPageHeight(100); 
    print.setPageWidth(80); 
    print.setOrientation(jasperReport.getOrientationValue().LANDSCAPE); 
    JasperPrintManager.printReport(print,false); 

您也可以使用此：

PrinterJob job = PrinterJob.getPrinterJob(); 
    int selectedService = 0; 
    selectedService = 0; 
    PrintRequestAttributeSet printRequestAttributeSet = new HashPrintRequestAttributeSet(); 
    printRequestAttributeSet.add(OrientationRequested.PORTRAIT); 
    printRequestAttributeSet.add(MediaSizeName.ISO_A0); 
    MediaSizeName mediaSizeName = MediaSize.findMedia(64,25,MediaPrintableArea.MM); 
    printRequestAttributeSet.add(mediaSizeName); 
    printRequestAttributeSet.add(new Copies(1)); 
    JRPrintServiceExporter exporter; 
    exporter = new JRPrintServiceExporter(); 
    exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasper_print); 
    exporter.setParameter(JRPrintServiceExporterParameter.PRINT_REQUEST_ATTRIBUTE_SET, printRequestAttributeSet); 
    exporter.setParameter(JRPrintServiceExporterParameter.DISPLAY_PAGE_DIALOG, Boolean.FALSE); 
    exporter.setParameter(JRPrintServiceExporterParameter.DISPLAY_PRINT_DIALOG, Boolean.TRUE); 
    exporter.exportReport(); 
    job.print(printRequestAttributeSet);