Java通过PDF模板导出数据，adobe acrobat的PDF编辑器，itextpdf

矫情吗；* 2022-12-07 15:05 208阅读 0赞

# 前言 #

之前做过一个项目，通过PDF上的占位符动态地填充数据并下载，这里就需要用到adobe的软件去设置PDF的格式，并获取到当前占位符的id。

# 环境 #

*  adobe acrobat ：pdf 编辑器；
    
     *  使用 word导出PDF格式
     *  打 开 adobe acrobat 工具；（如果提示错误，右键选择以管理员方式运行试试）
     *  选择 文件 -> 创建 -> 创建表单
     *  选择刚保存的pdf文件，并打开；
     *  adobe acrobat 工具会在表格中自动填充一些“文本域”，默认 “fill\_” 开头；
     *  看到有 12 个 文本域，就说明模板创建成功了，直接 ctrl+s 保存下，关闭即可；
 *  itext.jar : pdf 开发组件

<dependency>
                <groupId>com.itextpdf</groupId>
                <artifactId>itextpdf</artifactId>
                <version>5.5.6</version>
            </dependency>
            <dependency>
                <groupId>com.itextpdf.tool</groupId>
                <artifactId>xmlworker</artifactId>
                <version>5.5.6</version>
            </dependency>
            <dependency>
                <groupId>com.itextpdf</groupId>
                <artifactId>itext-asian</artifactId>
                <version>5.2.0</version>
            </dependency>

# java开发 #

@RequestMapping(value = "/downloadWord/{employeeId}", method = RequestMethod.GET)
        public Result downloadWord(HttpServletResponse response, @PathVariable Long employeeId) { 
            final BaseAccount dbBa = baseAccountService.get(employeeId).getResultData();
            Date signDate = dbBa.getAuditTime();
            Picture sign = dbBa.getSign();
            final String sysPath = getSispPath().replaceAll("/sharedSalaryManager/", "");
            Map<String, String> params = new HashMap<String, String>() { 
                { 
                    put("username", dbBa.getName());
                    put("firstPartySignDate", isNotNull(signDate) ? ISO_DATE_FORMAT.format(signDate) : "_____________");
                    put("secondPartySignDate", isNotNull(signDate) ? ISO_DATE_FORMAT.format(signDate) : "_____________");
                    put("sign", isNotNull(sign) ? sysPath + sign.getRemoteRelativeUrl() : "");
                }
            };
            return WordPoiUtil.exportTempPDF(response, params, "personAndPlatform.pdf", 380.00f, 360.00f);
        }
    
        public static Result exportTempPDF(HttpServletResponse response, Map<String, String> map, String templateName, float absoluteX, float absoluteY) { 
            // 模板路径
            String inRelativePath = getSispPath() + "WEB-INF/word/";
            String inAbsolutePath = inRelativePath + templateName;
            ByteArrayOutputStream bos = null;
            PdfStamper ps = null;
            try { 
                PdfReader reader = new PdfReader(inAbsolutePath);
                bos = new ByteArrayOutputStream();
                Font font = FontFactory.getFont(getSispPath() + "WEB-INF/fonts/STSONG.TTF", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
                BaseFont baseFont = font.getBaseFont();
                ps = new PdfStamper(reader, bos);
                AcroFields form = ps.getAcroFields();
                form.addSubstitutionFont(baseFont);
                for (Map.Entry<String, String> entry : map.entrySet()) { 
                    String key = entry.getKey();
                    String value = entry.getValue();
                    if (value.contains("/") && countMatches(value, "/") >= 2) { 
                        String imgPath = map.get(entry.getKey());
                        int pageNo = form.getFieldPositions(key).get(0).page;
                        Image image = Image.getInstance(imgPath);
                        PdfContentByte under = ps.getOverContent(pageNo);
                        image.scaleToFit(100, 40);
                        image.setAbsolutePosition(absoluteX, absoluteY);
                        image.setInverted(false);
                        under.addImage(image);
                    } else { 
                        form.setField(key, value);
                    }
                }
                ps.setFormFlattening(true);
                String fileName1 = URLEncoder.encode(templateName.substring(0, templateName.indexOf(".")) + DateUtil.ISO_DATETIME_FORMAT_NONE.format(new Date()) + ".pdf", "UTF-8");
                String headStr = "attachment; filename=\"" + fileName1 + "\"";
                response.setContentType("APPLICATION/OCTET-STREAM");
                response.setHeader("Content-Disposition", headStr);
                OutputStream out = response.getOutputStream();
                out.write(bos.toByteArray());
                out.close();
                return ResultUtil.buildSuccess();
            } catch (Exception e) { 
                throw new GeneralBizException("模板PDF填充导出异常，请联系管理员：" + e.getMessage());
            } finally { 
                try { 
                    if (isNotNull(ps)) { 
                        ps.close();
                    }
                    if (isNotNull(bos)) { 
                        bos.close();
                    }
                } catch (Exception e) { 
                    e.printStackTrace();
                }
            }
        }