java导出pdf（纯代码实现）

左手的ㄟ右手 2023-10-13 17:29 24阅读 0赞

**java导出pdf**  
在项目开发中，产品的需求越来越奇葩啦，开始文件下载都是下载为excel的，做着做着需求竟然变了，要求能导出pdf。导出pdf倒也不是特别大的问题关键就是麻烦。  
导出pdf我知道的一共有3中方法：  
方法一：利用模板导出，但是首先编辑模板的工具不好找，现有的国外的工具要收费，所以放弃了这个。  
方法二：利用HTML页面导出，奈何自己不会写HTML，前端忙没时间帮忙写。本着求人不如靠己的想法就选择了第三种比较麻烦的方法，自己用table画。  
方法三：自己用纯代码画格式（可调字体大小，颜色，对复杂没有规则的数据都可以）  
首先必须导入的依赖有

<dependency>
                <groupId>com.itextpdf</groupId>
                <artifactId>itextpdf</artifactId>
                <version>5.5.10</version>
            </dependency>
            <dependency>
                <groupId>com.itextpdf</groupId>
                <artifactId>itext-asian</artifactId>
                <version>5.2.0</version>
            </dependency>

然后就是一顿代码输出  
先把效果贴上  
![在这里插入图片描述][b481253f86d940289adfaccca8d8c93d.png]  
然后是代码部分

@ApiOperation(value = "导出")
        @PostMapping("/download")
        @SneakyThrows(Exception.class)
        public void download(@RequestBody @Valid FumigationDTO fumigationDTO, HttpServletResponse response, HttpServletRequest request) {
        
            // 防止日志记录获取session异常
            request.getSession();
            // 设置编码格式
            response.setContentType("application/pdf;charset=UTF-8");
            response.setCharacterEncoding("utf-8");
            String fileName = URLEncoder.encode("下载的PDF名称", "UTF-8");
            response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + ".pdf");
            fumigationService.download(fumigationDTO, response);
        }

业务层

@Override
        public void download(FumigationDTO fumigationDTO, HttpServletResponse response) throws IOException {
        
        	//要下载的数据查询数据部分我去掉了有需要自己根据业务取
            FumigationDowloadVO fumigationDowloadVO = new FumigationDowloadVO();
            
    
            // 定义全局的字体静态变量
            Font titlefont;
            Font headfont;
            Font keyfont = null;
            Font textfont = null;
            Font content = null;
            // 最大宽度
            try {
        
                // 不同字体（这里定义为同一种字体：包含不同字号、不同style）
                BaseFont bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
                titlefont = new Font(bfChinese, 16, Font.BOLD);
                headfont = new Font(bfChinese, 14, Font.BOLD);
                keyfont = new Font(bfChinese, 10, Font.BOLD);
                textfont = new Font(bfChinese, 15, Font.NORMAL);
                content = new Font(bfChinese, 10, Font.NORMAL);
    
            } catch (Exception e) {
        
                e.printStackTrace();
            }
            BaseFont bf;
            Font font = null;
            try {
        
                //创建字体
                bf = BaseFont.createFont( "STSong-Light", "UniGB-UCS2-H",
                        BaseFont.NOT_EMBEDDED);
                //使用字体并给出颜色
                font = new Font(bf,20,Font.BOLD,BaseColor.BLACK);
            } catch (Exception e) {
        
                e.printStackTrace();
            }
    
            Document document = new Document(new RectangleReadOnly(842F, 595F));
            try {
        
                PdfWriter.getInstance(document,response.getOutputStream());
                //打开生成的pdf文件
                document.open();
                //设置内容
                Paragraph paragraph = new Paragraph("熏蒸备案回执",font);
                paragraph.setAlignment(1);
                //引用字体
                document.add(paragraph);
    
                // 设置表格的列宽和列数
                float[] widths = {
        25f,25f,25f,25f,25f,25f};
                PdfPTable table = new PdfPTable(widths);
                table.setSpacingBefore(20f);
                // 设置表格宽度为100%
                table.setWidthPercentage(100.0F);
                table.setHeaderRows(1);
                table.getDefaultCell().setHorizontalAlignment(1);
                PdfPCell cell = null;
                //第一行
                cell = new PdfPCell(new Paragraph("熏蒸备案编码",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                cell.setFixedHeight(30);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph(fumigationDowloadVO.getXzbm()));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("熏蒸备案时间",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph(CheckVerifyUtil.dateToString4(fumigationDowloadVO.getSqxzrq())));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("申请备案单位",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph(fumigationDowloadVO.getDwmc(),content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
                //第二行
                cell = new PdfPCell(new Paragraph("熏蒸作业库点",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                cell.setFixedHeight(30);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph(fumigationDowloadVO.getKdmc(),content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("负责人",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph(fumigationDowloadVO.getFzr(),content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("联系电话",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph(fumigationDowloadVO.getFzrdh(),content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
                //第三行
                cell = new PdfPCell(new Paragraph("单据状态",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                cell.setFixedHeight(30);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph(shzt(fumigationDowloadVO.getShzt()),content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("审核时间",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph(CheckVerifyUtil.dateToString5(fumigationDowloadVO.getShsj()),content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph(" ",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
    
                cell = new PdfPCell(new Paragraph(" ",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table.addCell(cell);
    
                // 设置表格的列宽和列数
                float[] widths2 = {
        25f,25f,25f,25f,25f,25f};
                PdfPTable table2 = new PdfPTable(widths2);
                table2.setSpacingBefore(20f);
                // 设置表格宽度为100%
                table2.setWidthPercentage(100.0F);
                table2.setHeaderRows(1);
                table2.getDefaultCell().setHorizontalAlignment(1);
    
                //人员列表-第四行
                cell = new PdfPCell(new Paragraph("姓名",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                cell.setFixedHeight(20);
                table2.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("职务",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table2.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("职业资格",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table2.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("身体状况",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table2.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("熏蒸任务分工",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table2.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("是否外包",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table2.addCell(cell);
                //人员列表数据-第五行
                if(fumigationDowloadVO.getProples().size() > 0){
        
                    for (RecordFumigationPeople prople : fumigationDowloadVO.getProples()) {
        
                        PdfPCell cell1 = new PdfPCell(new Paragraph(prople.getXm(), content));
                        PdfPCell cell2 = new PdfPCell(new Paragraph(prople.getZw(), content));
                        PdfPCell cell3 = new PdfPCell(new Paragraph(prople.getZyzg(), content));
                        PdfPCell cell4 = new PdfPCell(new Paragraph(prople.getStzk(), content));
                        PdfPCell cell5 = new PdfPCell(new Paragraph(prople.getXzrwfg(), content));
                        PdfPCell cell6 = new PdfPCell(new Paragraph(prople.getSfwb(), content));
    
                        //单元格对齐方式
                        cell1.setHorizontalAlignment(Element.ALIGN_CENTER);
                        cell1.setVerticalAlignment(Element.ALIGN_MIDDLE);
                        cell1.setFixedHeight(20);
                        //单元格垂直对齐方式
                        cell2.setHorizontalAlignment(Element.ALIGN_CENTER);
                        cell2.setVerticalAlignment(Element.ALIGN_MIDDLE);
    
                        cell3.setHorizontalAlignment(Element.ALIGN_CENTER);
                        cell3.setVerticalAlignment(Element.ALIGN_MIDDLE);
    
                        cell4.setHorizontalAlignment(Element.ALIGN_CENTER);
                        cell4.setVerticalAlignment(Element.ALIGN_MIDDLE);
    
                        cell5.setHorizontalAlignment(Element.ALIGN_CENTER);
                        cell5.setVerticalAlignment(Element.ALIGN_MIDDLE);
    
                        cell6.setHorizontalAlignment(Element.ALIGN_CENTER);
                        cell6.setVerticalAlignment(Element.ALIGN_MIDDLE);
    
                        table2.addCell(cell1);
                        table2.addCell(cell2);
                        table2.addCell(cell3);
                        table2.addCell(cell4);
                        table2.addCell(cell5);
                        table2.addCell(cell6);
                    }
                }
    
                // 设置表格的列宽和列数
                float[] widths3 = {
        25f,25f,25f,25f,25f};
                PdfPTable table3 = new PdfPTable(widths3);
                table3.setSpacingBefore(20f);
                // 设置表格宽度为100%
                table3.setWidthPercentage(100.0F);
                table3.setHeaderRows(1);
                table3.getDefaultCell().setHorizontalAlignment(1);
    
                //实施储粮信息
                cell = new PdfPCell(new Paragraph("仓房",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                cell.setFixedHeight(20);
                table3.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("货位",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table3.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("粮食品种",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table3.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("计划熏蒸开始时间",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table3.addCell(cell);
    
                cell = new PdfPCell(new Paragraph("计划熏蒸结束时间",content));
                cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
                cell.setHorizontalAlignment(Element.ALIGN_CENTER);
                table3.addCell(cell);
    
                if(fumigationDowloadVO.getDtls().size() > 0){
        
                    for (RecordFumigationDtlVO dtl : fumigationDowloadVO.getDtls()) {
        
                        PdfPCell cell1 = new PdfPCell(new Paragraph(dtl.getCfmc(), content));
                        PdfPCell cell2 = new PdfPCell(new Paragraph(dtl.getHwmc(), content));
                        PdfPCell cell3 = new PdfPCell(new Paragraph(dtl.getLspzmc(), content));
                        PdfPCell cell4 = new PdfPCell(new Paragraph(CheckVerifyUtil.dateToString4(dtl.getJhxzksrq()), content));
                        PdfPCell cell5 = new PdfPCell(new Paragraph(CheckVerifyUtil.dateToString4(dtl.getJhxzjsrq()), content));
                        //设置居中
                        cell1.setHorizontalAlignment(Element.ALIGN_CENTER);
                        cell1.setVerticalAlignment(Element.ALIGN_MIDDLE);
                        cell1.setFixedHeight(20);
    
                        cell2.setHorizontalAlignment(Element.ALIGN_CENTER);
                        cell2.setVerticalAlignment(Element.ALIGN_MIDDLE);
    
                        cell3.setHorizontalAlignment(Element.ALIGN_CENTER);
                        cell3.setVerticalAlignment(Element.ALIGN_MIDDLE);
    
                        cell4.setHorizontalAlignment(Element.ALIGN_CENTER);
                        cell4.setVerticalAlignment(Element.ALIGN_MIDDLE);
    
                        cell5.setHorizontalAlignment(Element.ALIGN_CENTER);
                        cell5.setVerticalAlignment(Element.ALIGN_MIDDLE);
    
                        table3.addCell(cell1);
                        table3.addCell(cell2);
                        table3.addCell(cell3);
                        table3.addCell(cell4);
                        table3.addCell(cell5);
    
                    }
                }
    
                document.add(new Paragraph("\n"));
                document.add(new Paragraph("▋ 基本信息",content));
                document.add(new Paragraph("\n"));
    
                document.add(table);
    
                document.add(new Paragraph("\n"));
                document.add(new Paragraph("▋ 基本信息",content));
                document.add(new Paragraph("\n"));
    
                document.add(table2);
    
                document.add(new Paragraph("\n"));
                document.add(new Paragraph("▋ 熏蒸作业储粮粮情",content));
                document.add(new Paragraph("\n"));
    
                document.add(table3);
    			//关闭文档
                document.close();
    
    
            } catch (DocumentException e) {
        
                e.printStackTrace();
                log.error("导出pdf失败:{}",e);
            }
        }

**（二）2023-08-24 更新导出PDF无表格**

效果：内容全部为代码实现  
![在这里插入图片描述][5c2e19a2f1754901b4eb4b33637bd97d.png]  
贴上代码：

@SneakyThrows
        @PostMapping("/rectification/notice/export")
        @ApiOperation("xxxx通知导出")
        public void registrationNoticeExport(@RequestBody InspectionPlanDtlListDTO reqParam, HttpServletRequest request, HttpServletResponse response) {
        
            request.getSession();
            if (StringUtils.isBlank(reqParam.getId())) {
        
                throw new CustomException("id不能为空");
            }
            String year = String.valueOf(Calendar.getInstance().get(Calendar.YEAR));
            ExpertSignInExportVO vo = inspectionProblemService.registrationNoticeExport(reqParam.getId());
            if(NoticeCoeEnum.getIdList().contains(vo.getId())){
        
                vo.setDate("2023年08月18日");
            }else {
        
                vo.setDate(DateUtil.date().toString(DatePattern.CHINESE_DATE_PATTERN));
            }
            // 检查单位
            List<InspectionPlanUnitVO> planUnitList = inspectionPlanUnitRelationMapper.selectByPlanId(vo.getPlanId());
            vo.setInspectionCompany(planUnitList.stream().map(InspectionPlanUnitVO::getUnitName).collect(Collectors.joining("、")));
    
            vo.setYear(year);
    
            Field[] fields = vo.getClass().getDeclaredFields();
            HashMap<String, String> dataMap = new HashMap<>(fields.length);
            for (Field field : fields) {
        
                field.setAccessible(true);
                dataMap.put("${" + field.getName() + "}", String.valueOf(field.get(vo)));
            }
            if (StringUtils.isNotBlank(vo.getInspectionTeamLeader()) || StringUtils.isNotBlank(vo.getInspectorPhone())) {
        
                dataMap.put("${inspectionTeamLeaderInfo}", String.format("（联系人：%s；联系电话：%s）",
                        vo.getInspectionTeamLeader(), StringUtils.isNotBlank(vo.getOfficePhone()) ? vo.getOfficePhone() : vo.getInspectorPhone()));
            }
            dataMap.put("${attachmentNameStr}", "    " + String.join("\n    ", vo.getAttachmentNameList()));
    
            //导出pdf
            PdfUtil.setResponseContentType(response, vo.getInspectedEnterprise() + vo.getPlanName() + "检查整改通知" + year);
    //        PdfUtil.fillWordTemplate("template/rectification_notice.pdf", dataMap, response);
            PdfUtil.downloadPdf(dataMap,response);
    
    //            String fileName = vo.getInspectedEnterprise() + vo.getPlanName() + "检查整改通知" + year;
    //          //导出excel
    //        WordUtil.setResponseContentType(response, fileName);
    //        WordUtil.fillWordTemplate("template/rectification_notice.docx", dataMap, response.getOutputStream(),Boolean.TRUE);
        }

导出pdf工具

public static void setResponseContentType(HttpServletResponse response, String fileName) throws UnsupportedEncodingException {
        
            response.setContentType("application/pdf");
            response.setCharacterEncoding("utf-8");
            response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "utf-8") + ".pdf");
            response.setHeader("Access-Control-Expose-Headers", "Content-Disposition");
        }
    
    
    public static void downloadPdf(Map<String,String> dataMap, HttpServletResponse response){
        
            // 定义全局的字体静态变量
            Font titlefont;
            Font headfont;
            Font keyfont = null;
            Font textfont = null;
            Font content = null;
            Font space = null;
            Font space1 = null;
            Font space2 = null;
            Font space3 = null;
            // 最大宽度
            try {
        
                // 不同字体（这里定义为同一种字体：包含不同字号、不同style）
                BaseFont bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
                titlefont = new Font(bfChinese, 16, Font.BOLD);
                headfont = new Font(bfChinese, 14, Font.BOLD);
                keyfont = new Font(bfChinese, 22, Font.BOLD);
                textfont = new Font(bfChinese, 15, Font.NORMAL);
                content = new Font(bfChinese, 16, Font.NORMAL);
                space = new Font(bfChinese, 5, Font.NORMAL);
                space1 = new Font(bfChinese, 20, Font.NORMAL);
                space2 = new Font(bfChinese, 20, Font.NORMAL);
                space3 = new Font(bfChinese, 3, Font.NORMAL);
    
            } catch (Exception e) {
        
                e.printStackTrace();
            }
            BaseFont bf;
            Font font = null;
            try {
        
                //创建字体
                bf = BaseFont.createFont( "STSong-Light", "UniGB-UCS2-H",
                        BaseFont.NOT_EMBEDDED);
                //使用字体并给出颜色
                font = new Font(bf,36,Font.BOLD, BaseColor.RED);
            } catch (Exception e) {
        
                e.printStackTrace();
            }
            Document document = new Document(new Rectangle(com.itextpdf.text.PageSize.A4));
    
            try {
        
                com.itextpdf.text.pdf.PdfWriter.getInstance(document, response.getOutputStream());
                //打开PDF文件
                document.open();
                //设置内容
                Paragraph paragraph = new Paragraph("深圳市粮食和物资储备保障中心", font);
                //居中设置
                paragraph.setAlignment(Element.ALIGN_CENTER);
                document.add(paragraph);
    
                //页眉横线
                document.add(new Paragraph("\n", space2));
                LineSeparator line = new LineSeparator(3f, 100, BaseColor.RED, Element.ALIGN_CENTER, 0f);
                document.add(line);
                document.add(new Paragraph("\n", space3));
                LineSeparator lineStart = new LineSeparator(1f, 100, BaseColor.RED, Element.ALIGN_CENTER, 0f);
                document.add(lineStart);
    
                document.add(new Paragraph("\n", space));
                String text = "深储整改〔 " + dataMap.get("${year}") + "〕" + dataMap.get("${sort}") + "号";
                Paragraph paragraph0 = new Paragraph(text, content);
                paragraph0.setAlignment(Element.ALIGN_RIGHT);
                document.add(paragraph0);
    
                document.add(new Paragraph("\n"));
                Paragraph paragraph1 = new Paragraph(dataMap.get("${inspectionCompany}") + "关于", keyfont);
                paragraph1.setAlignment(Element.ALIGN_CENTER);
                document.add(paragraph1);
    
                document.add(new Paragraph("\n", space));
                String concent = dataMap.get("${planName}") + "发现问题整改的通知";
                Paragraph paragraph2 = new Paragraph(concent, keyfont);
                paragraph2.setAlignment(Element.ALIGN_CENTER);
                document.add(paragraph2);
    
                document.add(new Paragraph("\n"));
                Paragraph paragraph3 = new Paragraph(dataMap.get("${qymc}") + ":", content);
                paragraph3.setAlignment(Element.ALIGN_LEFT);
                document.add(paragraph3);
    
                document.add(new Paragraph("\n", space));
                String concent1 = "             现将" + dataMap.get("${kdmc}") + dataMap.get("${planName}")
                        + "检查发现问题及整改要求转给你司，请严格按期限要求进行整改，并将整改落实情况(含佐证材料及附件)通过深圳市粮食和物资储备信息管理平台反馈我中心。";
                Paragraph paragraph4 = new Paragraph(concent1, content);
                //设置首行缩进
                paragraph4.setIndentationRight(2);
                document.add(paragraph4);
    
                document.add(new Paragraph("\n", space));
                Paragraph paragraph5 = new Paragraph("              特此通知。", content);
                paragraph5.setIndentationRight(2);//右缩进2格
                document.add(paragraph5);
    
                document.add(new Paragraph("\n", space1));
                document.add(new Paragraph("\n", space1));
                //附件
                Paragraph paragraph6 = new Paragraph("              附件:", content);
                paragraph6.setIndentationRight(2);//右缩进2格
                document.add(paragraph6);
    
                document.add(new Paragraph("\n", space));
                Paragraph paragraph7 = new Paragraph(dataMap.get("${attachmentNameStr}"), content);
                document.add(paragraph7);
    
                document.add(new Paragraph("\n", space1));
                document.add(new Paragraph("\n", space1));
                document.add(new Paragraph("\n", space1));
    
                //日期
                Paragraph paragraph8 = new Paragraph(dataMap.get("${date}"), content);
                //向右
                paragraph8.setAlignment(Element.ALIGN_RIGHT);
                document.add(paragraph8);
    
                document.add(new Paragraph("\n", space1));
                //落款
                Paragraph paragraph9 = new Paragraph(dataMap.get("${inspectionTeamLeaderInfo}"), content);
                paragraph9.setAlignment(Element.ALIGN_CENTER);
                document.add(paragraph9);
    
                //页尾横线
                document.add(new Paragraph("\n", space2));
                document.add(new Paragraph("\n", space2));
                LineSeparator lineEnd = new LineSeparator(3f, 100, BaseColor.RED, Element.ALIGN_CENTER, 0f);
                document.add(lineEnd);
                document.add(new Paragraph("\n", space3));
                LineSeparator lineEnd1 = new LineSeparator(1f, 100, BaseColor.RED, Element.ALIGN_CENTER, 0f);
                document.add(lineEnd1);
    
    
                //关闭文档
                document.close();
    
            } catch (Exception e) {
        
                e.printStackTrace();
                log.error("导出pdf失败：{}", e);
            }
    
    
        }

然后就可以了直接导出pdf。

[b481253f86d940289adfaccca8d8c93d.png]: https://img-blog.csdnimg.cn/b481253f86d940289adfaccca8d8c93d.png
[5c2e19a2f1754901b4eb4b33637bd97d.png]: https://img-blog.csdnimg.cn/5c2e19a2f1754901b4eb4b33637bd97d.png