java 生成pdf报表

public void saveMapAddressInfo(String orderCode){
    try{
        List<Leads> leadses = leadsService.findLeadsByCode(orderCode);
        if (leadses != null && leadses.size() > 0){
　　　　　　　//创建Document实例
            Document document = new Document(PageSize.A4, 20, 20, 20, 20);
　　　　　　　//建立一个书写器(Writer)与document对象关联，通过书写器(Writer)可以将文档写入到磁盘中。
            PdfWriter.getInstance(document, new FileOutputStream(this.filePath + "/" + orderCode+"-MapUserInfo.pdf"));
　　　　　　　//打开文档。
            document.open();
            Font cellFont = FontFactory.getFont("HELVETICA", 9, BaseColor.BLACK);
            Font titleFont = FontFactory.getFont("HELVETICA-BOLD", 9, BaseColor.BLACK);
            PdfPTable table = new PdfPTable(8);
            PdfPCell cell;
            table.setWidthPercentage(100);
            table.setWidths(new int[]{3, 4, 4, 5, 3, 3, 2, 3});
            table.getDefaultCell().setUseAscender(true);
            table.getDefaultCell().setUseDescender(true);

            // first row
            cell = new PdfPCell(new Phrase(orderCode + " - Map User Info"));
            cell.setColspan(8);
            cell.setHorizontalAlignment(Element.ALIGN_CENTER);
            cell.setPadding(5.0f);
            cell.setBackgroundColor(new BaseColor(53,168,3));
            cell.setMinimumHeight(30);
            table.addCell(cell);

            cell = new PdfPCell(new Paragraph("Name",titleFont));
            cell.setPadding(5.0f);
            cell.setMinimumHeight(25);
            table.addCell(cell);
            cell = new PdfPCell(new Paragraph("Phone",titleFont));
            cell.setPadding(5.0f);
            cell.setMinimumHeight(25);
            table.addCell(cell);
            cell = new PdfPCell(new Paragraph("Email",titleFont));
            cell.setPadding(5.0f);
            cell.setMinimumHeight(25);
            table.addCell(cell);
            cell = new PdfPCell(new Paragraph("Address",titleFont));
            cell.setPadding(5.0f);
            cell.setMinimumHeight(25);
            table.addCell(cell);
            cell = new PdfPCell(new Paragraph("Address2",titleFont));
            cell.setPadding(5.0f);
            cell.setMinimumHeight(25);
            table.addCell(cell);
            cell = new PdfPCell(new Paragraph("City",titleFont));
            cell.setPadding(5.0f);
            cell.setMinimumHeight(25);
            table.addCell(cell);
            cell = new PdfPCell(new Paragraph("State",titleFont));
            cell.setPadding(5.0f);
            cell.setMinimumHeight(25);
            table.addCell(cell);
            cell = new PdfPCell(new Paragraph("ZipCode",titleFont));
            cell.setPadding(5.0f);
            cell.setMinimumHeight(25);
            table.addCell(cell);
            for(Leads leads:leadses){
                cell = new PdfPCell(new Paragraph(leads.getFirstName()+" "+leads.getLastName(),cellFont));
                cell.setPadding(5.0f);
                cell.setMinimumHeight(25);
                table.addCell(cell);
                cell = new PdfPCell(new Paragraph(leads.getPhone(),cellFont));
                cell.setPadding(5.0f);
                cell.setMinimumHeight(25);
                table.addCell(cell);
                cell = new PdfPCell(new Paragraph(leads.getEmail(),cellFont));
                cell.setPadding(5.0f);
                cell.setMinimumHeight(25);
                table.addCell(cell);
                cell = new PdfPCell(new Paragraph(leads.getAddress(),cellFont));
                cell.setPadding(5.0f);
                cell.setMinimumHeight(25);
                table.addCell(cell);
                cell = new PdfPCell(new Paragraph(leads.getAddress2(),cellFont));
                cell.setPadding(5.0f);
                cell.setMinimumHeight(25);
                table.addCell(cell);
                cell = new PdfPCell(new Paragraph(leads.getCity(),cellFont));
                cell.setPadding(5.0f);
                cell.setMinimumHeight(25);
                table.addCell(cell);
                cell = new PdfPCell(new Paragraph(leads.getState(),cellFont));
                cell.setPadding(5.0f);
                cell.setMinimumHeight(25);
                table.addCell(cell);
                cell = new PdfPCell(new Paragraph(leads.getZipCode(),cellFont));
                cell.setPadding(5.0f);
                cell.setMinimumHeight(25);
                table.addCell(cell);
            }
　　　　　　　//向文档中添加内容。
            document.add(table);
            // 5.关闭文档
            document.close();
        }
    }catch (FileNotFoundException e){
        e.printStackTrace();
    }catch (DocumentException e){
        e.printStackTrace();
    }
}