java导出pdf功能记录

这几天已在做处理导出pdf文件的功能，摸索了几天总算可以了。记录下这几天遇到的问题。

1.网上基本都是基于Itext5和Itext7来处理的。我最终是在Itext5上成功了，itext7应该是模板出问题了，在写的test方法里面测试时候，总是 找不到 pdf文档里面的form表单内容。因为需要使用adobe acrobat reader dc 来制作模板，而我没有这个。一直导致失败。

2.最终成功是参考这个文档：

https://blog.csdn.net/yi2419808933/article/details/52469241

https://blog.csdn.net/yi2419808933/article/details/52469241

3.贴上最终代码

 /**
     * 导出对账单
     * @return
     */
    @RequestMapping("/exportSupplierFeeData")
    @ResponseBody
    @MasterSlaveConfigs(configs={
            @MasterSlaveConfig(databaseTag="mdbcarmanage-DataSource",mode= DynamicRoutingDataSource.DataSourceMode.SLAVE)
    } )
    public AjaxResponse exportSupplierFeeData(HttpServletRequest request, HttpServletResponse response,
                                              ServletOutputStream outputStream,
                                              Integer cityId, Integer supplierId,
                                              Integer status, Integer amountStatus, String settleStartDate,
                                              String settleEndDate, String paymentStartTime, String paymentEndTime, String feeOrderNo){
        logger.info(MessageFormat.format("查询司机线上化入参:cityId:%s,supplierId:%s,status:%s," +
                        "amountStatus:%s,settleStartDate:%s,settleEndDate:%s,paymentStartTime:%s,paymentEndTime:%s",cityId,supplierId,status,amountStatus,settleStartDate,settleEndDate,paymentStartTime,paymentEndTime));

        response.setContentType("application/pdf;charset=ISO8859-1");
        response.setHeader("Content-disposition", "attachment; filename="+"supplierFeePDF-1.pdf");

        SupplierFeeManageDto feeManageDto = new SupplierFeeManageDto();
        feeManageDto.setCityId(cityId);
        feeManageDto.setSettleStartDate(settleStartDate);
        feeManageDto.setSettleEndDate(settleEndDate);
        feeManageDto.setAmountStatus(amountStatus);
        feeManageDto.setStatus(status);
        SupplierFeeManage manage = supplierFeeService.queryByOrderNo(feeOrderNo);

        String[] titles = { "供应商名称1", "列名t2", "列名3", "列名4", "t5", "t6","t7"};
        try {
            ByteArrayOutputStream ba = new ByteArrayOutputStream();
            Document document = new Document(PageSize.A3); // Step 1—Create a Document.
            PdfWriter writer;
            writer = PdfWriter.getInstance(document, ba);
            document.open();

            document.setMargins(5, 5, 5, 5);
            //H 代表文字版式是横版，相应的 V 代表竖版
            BaseFont bfChinese = BaseFont.createFont("STSongStd-Light","UniGB-UCS2-H",BaseFont.NOT_EMBEDDED);//STSongStd-Light 是字体，在jar 中以property为后缀
            //参数一：新建好的字体；参数二：字体大小，参数三：字体样式，多个样式用“|”分隔

            Font topfont = new Font(bfChinese,14,Font.BOLD);
            //BaseFont bf = BaseFont.createFont("" + "fonts/simsun.ttc,0", BaseFont.IDENTITY_H,
                 //   BaseFont.EMBEDDED);

            Paragraph blankRow1 = new Paragraph(18f, " ");
            blankRow1.setAlignment(Element.ALIGN_CENTER);

            PdfPTable table1 = new PdfPTable(titles.length); //创建一个表格,参数为一行有几栏
            int width1[] = {100,150,150,100,50,50,55};//每栏的宽度
            table1.setWidths(width1); //设置宽度

            //首行
            for(int i=0;i<titles.length;i++){
                PdfPCell cell1 = new PdfPCell(new Paragraph(titles[i],topfont));
                table1.addCell(cell1);
            }

            //每栏的值
            //PdfPCell cell1 = new PdfPCell(new Paragraph(manage.getSupplierId()));

/*             PdfPTable celltable = new PdfPTable(2);

            cell1 = new PdfPCell(celltable);
            cell1.setRowspan(2);
            cell1.setPadding(10);
            table1.addCell(cell1);*/

            PdfPCell cell1 = new PdfPCell(new Paragraph("5555",topfont));
            table1.addCell(cell1);
                 PdfPCell cell2= new PdfPCell(new Paragraph(manage.getFlowAmount(),topfont));
            table1.addCell(cell2);

                PdfPCell cell3= new PdfPCell(new Paragraph(manage.getSettleStartDate().toString(),topfont));
            table1.addCell(cell3);
                PdfPCell cell4= new PdfPCell(new Paragraph(manage.getPaymentTime().toString(),topfont));
            table1.addCell(cell4);
                PdfPCell cell5= new PdfPCell(new Paragraph(manage.getFeeOrderNo(),topfont));
            table1.addCell(cell5);
                PdfPCell cell6= new PdfPCell(new Paragraph(manage.getSupplierId().toString(),topfont));
            table1.addCell(cell6);
            PdfPCell cell7= new PdfPCell(new Paragraph(manage.getSupplierName().toString(),topfont));
            table1.addCell(cell7);

           document.add(table1);//将表格加入到document中
           // document.add(table2);
            document.add(blankRow1);
            document.close();

            ba.writeTo(outputStream);
            outputStream.flush();
            outputStream.close();

            ba.close(); // 导出pdf注解

        } catch (Exception e) {
            e.printStackTrace();
        }

        // 模板路径

        String templatePath =  "/Users/fan/workspace/mp-manage/src/main/webapp/upload/supplierFeePDF-1.pdf";

        // 生成的新文件路径
       String newPDFPath =  "/Users/fan/workspace/mp-manage/src/main/webapp/upload/supplierFeePDF-2.pdf";
       /* PdfReader reader;
        FileOutputStream out;
        ByteArrayOutputStream bos;
        PdfStamper stamper;
        try {
            out = new FileOutputStream(newPDFPath);// 输出流
            reader = new PdfReader(templatePath);// 读取pdf模板
            bos = new ByteArrayOutputStream();

            stamper = new PdfStamper(reader, bos);
            AcroFields form = stamper.getAcroFields();
            *//*String[] str = {manage.getSupplierName(), DateUtils.formatDate(manage.getSettleStartDate()),DateUtils.formatDate(manage.getSettleEndDate()),
            manage.getFlowAmount()};*//*
            String[] str = { "123456789", "TOP__ONE", "男", "1991-01-01", "130222111133338888", "河北省保定市" };
            java.util.Iterator<String> it = form.getFields().keySet().iterator();

            *//*for(int i = 0;i<feeManageList.size();i++){
                SupplierFeeManage feeManage = feeManageList.get(i);

                form.setField(null,feeManage.getSupplierName());
            }*//*

            int i = 0;
            while (it.hasNext()) {
                String name = it.next().toString();
                System.out.println(name);
                form.setField(name, str[i++]);
            }
            stamper.setFormFlattening(true);// 如果为false那么生成的PDF文件还能编辑，一定要设为true
            stamper.close();
            Document doc = new Document();
            PdfCopy copy = new PdfCopy(doc, out);
            doc.open();
            PdfImportedPage importPage = copy.getImportedPage(new PdfReader(bos.toByteArray()), 1);
            copy.addPage(importPage);
            doc.close();
        } catch (IOException e) {
            System.out.println(1);
        } catch (DocumentException e) {
            System.out.println(2);
        }
*/
        return null;
    }