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java整合itext pdf实现固定模版pdf导出

news 2025/10/21 7:04:36

java整合itext pdf实现固定模版pdf导出，通过自定义pdf模版，填充指定字段内容，将多个pdf文件压缩为zip文件响应

1、导入依赖

        <!--       itex PDF --><dependency><groupId>com.itextpdf</groupId><artifactId>itextpdf</artifactId><version>5.5.13.3</version></dependency>

2、编写PDF模版

使用WPS的PDF,插入表格来定义模板，通过wps的表单编辑功能输入参数

双击表格栏填写数据，后面写入的参数名称

最终模版样式：

📎reportTemplate0523.pdf

3、编写导出业务接口

先将模版文件放在resources目录的tempplate下

@PostMapping("/reportExport")
public void exportElecProtocolBatch(@RequestBody StudentReportDto dto, HttpServletResponse response) {
try {// 查询业务数据IPage<SxReportVo> reportInfo = sxReportService.getReportStudentExportInfo(dto);if (reportInfo.getTotal() == 0) {return;}List<SxReportVo> records = reportInfo.getRecords();// 设置响应格式ZIPresponse.setContentType("application/zip");String zipFileName = URLEncoder.encode("实习报告.zip", "UTF-8");response.setHeader("Content-Disposition", "attachment; filename=" + zipFileName);// 向ZIP输出流写数据try (ZipOutputStream zipOut = new ZipOutputStream(response.getOutputStream())) {records.forEach(x -> {try {byte[] pdfBytes = generatePdf2(x);String pdfFileName = "实习报告_" + x.getReportTitle() +x.getReportStartdate()+ ".pdf";ZipEntry zipEntry = new ZipEntry(pdfFileName);zipOut.putNextEntry(zipEntry);zipOut.write(pdfBytes);zipOut.closeEntry();} catch (Exception e) {throw new RuntimeException(e);}});}
} catch (Exception e) {e.printStackTrace();
}
}// 设置PDF模版及字段名
private byte[] generatePdf2(SxReportVo record) throws Exception {try (ByteArrayOutputStream bos = new ByteArrayOutputStream()) {PdfReader reader = new PdfReader(this.getClass().getResourceAsStream("/template/reportTemplate0523.pdf"));PdfStamper stamper = new PdfStamper(reader, bos);AcroFields form = stamper.getAcroFields();// 处理中文BaseFont bf = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.EMBEDDED);ArrayList<BaseFont> fontList = new ArrayList<>();fontList.add(bf);form.setSubstitutionFonts(fontList);Map<String, Object> data = new HashMap<>();data.put("studentUserName", record.getStudentUserName());data.put("studentUserCode", record.getStudentUserCode());data.put("grade", record.getGrade());data.put("className", record.getClassName());data.put("majorName", record.getMajorName());data.put("collegeName", record.getCollegeName());data.put("teacherName", record.getTeacherName());data.put("createTime", record.getCreateTime());data.put("reportStartdate", record.getReportStartdate());data.put("reportTitle", record.getReportTitle());data.put("reportContent", record.getReportContent());data.put("reportImage", record.getReportImage());data.put("reportReview", record.getReportReview());data.put("reportXscore", record.getReportXscore());for (Map.Entry<String, Object> entry : data.entrySet()) {if (entry.getKey().contains("student")) {form.setField(entry.getKey(), ObjectUtil.isNotEmpty(entry.getValue()) ? entry.getValue().toString() : "", true);} else {form.setField(entry.getKey(), ObjectUtil.isNotEmpty(entry.getValue()) ? entry.getValue().toString() : "");}}stamper.setFormFlattening(true);stamper.close();return bos.toByteArray();}
}