ireport中使用java进行pdf转化，jasper作为模板

/**
	 * 导出pdf
	 * @param list
	 */
	public void pdfExport(List<FaHuoQingDan> list) {
		File file = new File("E:\\1.jasper");
		
		JasperReport report = null;
		JasperPrint jasperPrint = null;
		try {
			report = (JasperReport) JRLoader.loadObject(file);
		} catch (JRException e1) {
			e1.printStackTrace();
		}
		JRDataSource jrDataSource = new JRBeanCollectionDataSource(list);
		Map<String, Object> params = new HashMap<String, Object>();
		if(report!=null) {
			try {
				jasperPrint = JasperFillManager.fillReport(report, params, jrDataSource);
			} catch (JRException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		JRPdfExporter pdfExporter = new JRPdfExporter();
		pdfExporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
		
		pdfExporter.setParameter(JRExporterParameter.OUTPUT_FILE_NAME,"E:\\1.pdf");
		try {
			pdfExporter.exportReport();
		} catch (JRException e) {
			e.printStackTrace();
		}
	}