jasperPrint转PDF 中文显示不出来问题

再用jasper制作报表的时候提供两张打印方式：

第一种：直接打印jasperPrint

// An highlighted block
List<PrintRoomBean> beanList = new ArrayList<PrintRoomBean>();  //如果没有子报表 不需要beanList
PrintRoomBean print = new PrintRoomBean();// 填充一个对象   
beanList.add(print);
JasperReport jasperReport = (JasperReport) JRLoader.loadObject("jasper路径");
JRDataSource dataSource = new JRBeanCollectionDataSource(beanList);
jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, dataSource);

第二种：jasperPrint 转成pdf然后打印pdf

/**
 * 
 * jasperPrint转pdf  
 */
public static void jasperTopdf(JasperPrint jasperPrint, String fileName) {
    
		List jasperPrintList = new ArrayList();
		jasperPrintList.add(jasperPrint);
		File file = new File(Constant.Signature.Signature_Pdf + fileName + ".pdf");
		System.out.println("pdf保存路径==="+ Constant.Signature.Signature_Pdf  + fileName + ".pdf");
		try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
				FileOutputStream fos = new FileOutputStream(file);) {
    
			JRPdfExporter pdfExporter = new JRPdfExporter();
			pdfExporter.setParameter(JRExporterParameter.JASPER_PRINT_LIST, jasperPrintList);
			pdfExporter.setParameter(JRExporterParameter.OUTPUT_STREAM, baos);
			pdfExporter.exportReport();
			byte[] bytes = baos.toByteArray();
			fos.write(bytes);
			System.out.println("pdf写入成功");
		} catch (JRException | IOException e) {
    
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}
	
	/**
	 * 
	 * 打印pdf方法  
	 */
	public static boolean print(String pdfPath) {
    
        File file = new File(pdfPath);
        int  pageNum = 0;
      try {
    
		pageNum = getNumberOfPages(pdfPath);
	} catch (IOException e1) {
    
		e1.printStackTrace();
	} catch (InterruptedException e1) {
    
		e1.printStackTrace();
	}
		// 读取pdf文件
        PDDocument document;
		try {
    
			document = PDDocument.load(file);
		} catch (InvalidPasswordException e) {
    
			e.printStackTrace();
			return false;
		} catch (IOException e) {
    
			e.printStackTrace();
			return false;
		}
		// 创建打印任务
        PrinterJob job = PrinterJob.getPrinterJob();
        PrintService service = 
        	       PrintServiceLookup.lookupDefaultPrintService();
        try {
    
			job.setPrintService(service);
		} catch (PrinterException e1) {
    
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
        job.setPageable(new PDFPageable(document));
 
        Paper paper = new Paper();
		// 设置打印纸张大小
        paper.setSize(598,842); // 1/72 inch      
		// 设置打印位置 坐标
        paper.setImageableArea(0, 0, paper.getWidth(), paper.getHeight()); // no margins
        // custom page format
        PageFormat pageFormat = new PageFormat();
        pageFormat.setPaper(paper);
//        pageFormat.setOrientation(PageFormat.LANDSCAPE);
        // override the page format
        Book book = new Book();
        // append all pages 设置一些属性 是否缩放 打印张数等
        book.append(new PDFPrintable(document, Scaling.ACTUAL_SIZE), pageFormat, pageNum);
        job.setPageable(book);
		// 开始打印
        try {
    
			job.print();
		} catch (PrinterException e) {
    
			e.printStackTrace();
			return false;
		}
		return true;
	}

转pdf中文显示不出来需要对jasper模板设置参数