若依定制pdf生成实战

发布于:2025-05-10 ⋅ 阅读:(12) ⋅ 点赞:(0)

一、介绍

使用 Java Apache POI 将文字渲染到 Word 模板是一种常见的文档自动化技术,广泛应用于批量生成或定制 Word 文档的场景。使用aspose可以将word转成pdf从而达到定制化pdf的目的。

参考文档:java实现Word转Pdf(Windows、Linux通用) - 故城归人 - 博客园

二、word模板准备

(1)pdf逆转

本次实践没有word模板,需从生成的pdf先还原成word。所以使用python将pdf逆转成word docx:

!pip install pdf2docx

from pdf2docx import Converter
pdf_file = '专业技术资格评审申报表_预览.pdf'
docx_file = '申报表模板.docx'
cv = Converter(pdf_file)
#cv.convert(docx_file, start=0, end=2)  # 只转前三页
cv.convert(docx_file)# 转全部
cv.close()

创建word模板,在其中插入占位符,例如 {{name}}、{{workorg}}

(2)模版读取方式

   绝对路径读取:缺点路径变化无法读出

String baseDir = System.getProperty("user.dir");//获取项目根目录
String templatePath = baseDir + "/peer-upms/peer-upms-biz/src/main/resources/file/title_template.docx";
File templateFile = new File(templatePath);

   classpath读取:这样就不再依赖项目根目录的绝对路径,打包之后只要 title_template.docx 在 src/main/resources/file/ 下,就能自动被拷贝并使用。之后你再用 templateFile 打开 POI 进行替换就能正常运行了。

// 1. 从 classpath 加载模板资源(src/main/resources/file/title_template.docx)
ClassPathResource tplRes = new ClassPathResource("file/title_template.docx");
if (!tplRes.exists()) {
    throw new FileNotFoundException("classpath:/file/title_template.docx 不存在");
}


// 2. 将模板复制到一个临时文件(因为 POI 需要 File)
File templateFile = File.createTempFile("title_cover_", ".docx");
try (InputStream in = tplRes.getInputStream();
             FileOutputStream out = new FileOutputStream(templateFile)) {
            in.transferTo(out);
        }

三、Java相关代码

word部分(渲染数据写死)

(1)引入依赖:

   <dependency>
            <groupId>cn.afterturn</groupId>
            <artifactId>easypoi-base</artifactId>
            <version>4.1.0</version>
            <scope>compile</scope>
        </dependency>

(2)word下载接口:

 @Operation(summary = "申请人DOCX下载",
            responses = {
                    @ApiResponse(
                            responseCode = "200",
                            content = @Content(
                                    mediaType = "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
                                    schema = @Schema(type = "string", format = "binary")
                            )
                    )
            }
    )
    @RequestMapping(value = "/download/docx", method = RequestMethod.GET)
    public ResponseEntity<Resource> downloadDocx() {
        Map<String, Object> data = new HashMap<>();
        data.put("name", "XX1");
        data.put("department", "XX111测试");
        data.put("zhuanye", "作物育种");
        data.put("jishuzige", "研究员");
        data.put("nian", "2025");
        data.put("yue", "03");
        data.put("ri", "20");
        data.put("datetime", "2025/03/20 14:11:44");
        data.put("zhuanyejishu", "生命科学研究");
        try {
                File docxFile = wordToPdfService.generateDocx(data);
            File file = new File(docxFile.getName());
            if (!file.exists()) {
                return ResponseEntity.notFound().build();
            }
            Resource resource = new FileSystemResource(file);

            if (!resource.exists() || !resource.isReadable()) {
                return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
            }

            HttpHeaders headers = new HttpHeaders();
            headers.setContentType(MediaType.parseMediaType("application/vnd.openxmlformats-officedocument.wordprocessingml.document"));

            String fileName = "专业技术资格申报表_" + data.get("name") + "_预览.docx";
//            headers.setContentDisposition(ContentDisposition.builder("attachment").filename(fileName).build());
            //解决中文乱码问题
            ContentDisposition contentDisposition = ContentDisposition.builder("attachment")
                    .filename(fileName, StandardCharsets.UTF_8)
                    .build();
            headers.setContentDisposition(contentDisposition);
            headers.setContentLength(file.length());
            return new ResponseEntity<>(resource, headers, HttpStatus.OK);
        } catch (Exception e) {
            e.printStackTrace();
            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
        }
    }
@Service
public class WordToPdfService {

    /**
     *
     * 根据word模板生成word文档
     *
     */
    public File generateDocx(Map<String, Object> data) throws Exception {
        String baseDir = System.getProperty("user.dir");
        String templatePath = baseDir + "/peer-upms/peer-upms-biz/src/main/resources/file/title_template.docx";
        File templateFile = new File(templatePath);
        if (!templateFile.exists()) {
            throw new Exception("Template file does not exist at: " + templatePath);
        }
        try (FileInputStream fis = new FileInputStream(templateFile)) {
            if (fis.available() <= 0) {
                throw new Exception("Template file is empty.");
            }
        }
        XWPFDocument document = WordExportUtil.exportWord07(templatePath, data);
        try (FileOutputStream fos = new FileOutputStream("output.docx")) {
            document.write(fos);
        }
        File docxFile = new File("output.docx");
        return docxFile;
    }
......

pdf部分(渲染数据从mysql中拉取)

(1) 引入jar包:

mvn install:install-file   -Dfile=peer-upms/peer-upms-biz/libs/aspose-words-15.8.0-jdk16.jar   -DgroupId=com.aspose   -DartifactId=aspose-words   -Dversion=15.8.0-jdk16   -Dpackaging=jar

(2)下载pdf接口(先转word再生成对应的pdf)


@Inner(value = false)
@RestController
@RequiredArgsConstructor
public class TitlePdfDownloadController {
    @Autowired
    private ApplyDataPdfPreviewService applyDataPdfPreviewService;
    @GetMapping(value = "/downloadPdf")
    @Inner(value = false)
    public ResponseEntity<Resource> downloadWord() {
        try {
            Map<String, Object> data = new HashMap<>();
            data = applyDataPdfPreviewService.getDataByApplyId(applyId);

            // 1. Generate DOCX file
            File docxFile = wordToPdfService.generateDocx(data);

            // 2. Convert DOCX to PDF
            File pdfFile = wordToPdfService.convertDocxToPdf(docxFile);

            // 3. Read PDF file bytes
            byte[] pdfBytes = Files.readAllBytes(pdfFile.toPath());

            // 4. Set file name and response headers with PDF MIME type
            String fileName = "专业技术资格申报表_" + data.get("name") + "_" + "预览.pdf";
            Resource resource = new ByteArrayResource(pdfBytes);
            HttpHeaders headers = new HttpHeaders();
            headers.setContentType(MediaType.APPLICATION_PDF);
            headers.setContentDispositionFormData("attachment", fileName);
            headers.setContentLength(pdfBytes.length);
            return new ResponseEntity<>(resource, headers, HttpStatus.OK);
        } catch (Exception e) {
            e.printStackTrace();
            return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).build();
        }
    }

(3)将动态从mysql获取数据写成一个service:


@Service
public class ApplyDataPdfPreviewService {

    @Autowired
    private JdbcTemplate jdbcTemplate;

    @Autowired
    private FindCitiidMapper findCitiidMapper;

    /**
     * 根据 applyId 拉取申报表、学历和奖惩信息,
     * 并组装到一个 Map 中返回。
     */
    public Map<String,Object> getDataByApplyId(long applyId) {
        Map<String,Object> data = new HashMap<>();
        // 0)拉取 title_apply_applypers 中的mobile字段
        String citiid = findCitiidMapper.findCitiidByApplyId(applyId);
        String sqlMobile = "select mobile from title_apply_applypers where citiid=?";
        Map<String,Object> mobile = jdbcTemplate.queryForMap(sqlMobile, citiid);
        data.put("mobile", mobile.get("mobile"));

        // 1) 拉取 title_applytable 中的所有字段
        String sqlMain = """
            SELECT
              exctypecd,
              techqualtype_cd,
              citiid,
              name,
              workorg,
              gend_cd,
              birthday,
              job_dt,
              presdivtechjob,
              discactisitu,
              presdivtechpost,
              presdivtechpostbgn_tm,
              apply_id,
              apply_serie_nm,
              applydiv_nm,
              prestechqual_nm,
              fillin_tm,
              perm_nm,
              permget_tm,
              permcertnum,
              divtype,
              prestechqualget_tm,
              prestechqualapprorg_nm,
              presdivtechjobbyear,
              applytechqualdetail_cd,
              innovationteam
            FROM title_applytable
            WHERE apply_id = ?
            """;
        Map<String,Object> main = jdbcTemplate.queryForMap(sqlMain, applyId);
        // 基本字段放入 map
        String exctypecd = main.get("exctypecd").toString();
        switch (exctypecd) {
            case "1":
                data.put("c1",                 "√");
                data.put("c2",                 " ");
                data.put("c3",                 " ");
                data.put("c4",                 " ");
                break;
            case "2":
                data.put("c1",                 " ");
                data.put("c2",                 "√");
                data.put("c3",                 " ");
                data.put("c4",                 " ");
                break;
            case "5":
                data.put("c1",                 " ");
                data.put("c2",                 " ");
                data.put("c3",                 "√");
                data.put("c4",                 " ");
                break;
            case "6":
                data.put("c1",                 " ");
                data.put("c2",                 " ");
                data.put("c3",                 " ");
                data.put("c4",                 "√");
                break;
            default:
                data.put("c1",                 " ");
                data.put("c2",                 " ");
                data.put("c3",                 " ");
                data.put("c4",                 " ");
                break;
        }

        String techqualtype_cd = main.get("techqualtype_cd").toString();
        String techType ="";
        switch (techqualtype_cd) {
            case "1":
                techType = "应用基础研究与技术开发人员";
                break;
            case "2":
                techType = "试验发展与转化应用人员";
                break;
            case "3":
                techType = "农业政策与科技管理研究人员";
                break;
            default:
                techType = "";
                break;
        }
        data.put("techType",                techType);
        ......
        
        // 2) 拉取学历信息列表
        String sqlEdu = """
            SELECT
              school_nm,
              edu_nm,
              edutype_cd,
              edu_cd,
              digree_cd,
              gradsitu_cd,
              edubegin_tm,
              grad_tm
            FROM title_edurec
            WHERE apply_id = ?
            ORDER BY edubegin_tm
            """;
        List<Map<String,Object>> edus = jdbcTemplate.queryForList(sqlEdu, applyId);
        for (int i = 0; i < 4; i++) {
            Map<String,Object> e = i < edus.size() ? edus.get(i) : new HashMap<>();
            int idx = i + 1;
            data.put("school_nm" + idx,    e.get("school_nm") != null ? e.get("school_nm") : " ");
            data.put("edu_nm" + idx,       e.get("edu_nm") != null ? e.get("edu_nm") : " ");
            data.put("edutype_cd" + idx,   e.get("edutype_cd") != null ? e.get("edutype_cd") : " ");
            data.put("edu_cd" + idx,       e.get("edu_cd") != null ? e.get("edu_cd") : " ");
            data.put("digree_cd" + idx,    e.get("digree_cd") != null ? e.get("digree_cd") : " ");
            data.put("gradsitu_cd" + idx,  e.get("gradsitu_cd") != null ? e.get("gradsitu_cd") : " ");
            data.put("edubegin_tm" + idx,  e.get("edubegin_tm") != null ? e.get("edubegin_tm") : " ");
            data.put("grad_tm" + idx,      e.get("grad_tm") != null ? e.get("grad_tm") : " ");
        }

        // 3) 拉取奖惩信息列表
        String sqlBonus = """
            SELECT
              bonus_nm,
              bonus_tm,
              bonusorg
            FROM title_bonus
            WHERE apply_id = ?
            ORDER BY bonus_tm DESC
            """;
        List<Map<String,Object>> bonuses = jdbcTemplate.queryForList(sqlBonus, applyId);
        for (int i = 0; i < 3; i++) {
            Map<String,Object> b = i < bonuses.size()  ? bonuses.get(i) : new HashMap<>();
            int idx = i + 1;
            data.put("bonus_nm" + idx, b.size() != 0 ? b.get("bonus_nm") : " ");
            data.put("bonus_tm" + idx, b.size() != 0  ? b.get("bonus_tm") : " ");
            data.put("bonusorg" + idx, b.size() != 0 ? b.get("bonusorg") : " ");
        }
        data.put("nian", java.time.LocalDateTime.now().format(java.time.format.DateTimeFormatter.ofPattern("yyyy")));
        data.put("yue", java.time.LocalDateTime.now().format(java.time.format.DateTimeFormatter.ofPattern("MM")));
        data.put("ri", java.time.LocalDateTime.now().format(java.time.format.DateTimeFormatter.ofPattern("dd")));
        data.put("print_time", java.time.LocalDateTime.now().format(java.time.format.DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss")));
        // 4) 继续教育情况
        String sqlContEdu = """
        SELECT begin_tm, end_tm, content, chargorg, studyaddr
        FROM title_applycontedusitu
        WHERE apply_id = ?
        ORDER BY begin_tm
        """;
        List<Map<String,Object>> contEdus = jdbcTemplate.queryForList(sqlContEdu, applyId);
        for (int i = 0; i < 4; i++) {
            Map<String,Object> ce = i < contEdus.size() ? contEdus.get(i) : new HashMap<>();
            int idx = i + 1;
            data.put("cont_b" + idx, ce.size() != 0 ? ce.get("begin_tm") : " ");
            data.put("cont_e" + idx, ce.size() != 0 ? ce.get("end_tm") : " ");
            data.put("content" + idx, ce.size() != 0 ? ce.get("content") : " ");
            data.put("contedu_char" + idx, ce.size() != 0 ? ce.get("chargorg") : " ");
            data.put("caddr" + idx, ce.size() != 0 ? ce.get("studyaddr") : " ");
        }

        // 5) 专业考试成绩情况
        String sqlExam = """
        SELECT exam_tm, org, project, score, qualifycode
        FROM title_professionalexaminfo
        WHERE apply_id = ?
        ORDER BY exam_tm
        """;
        List<Map<String,Object>> exams = jdbcTemplate.queryForList(sqlExam, applyId);
        for (int i = 0; i < 4; i++) {
            Map<String,Object> ex = i < exams.size() ? exams.get(i) : new HashMap<>();
            int idx = i + 1;
            data.put("exam_tm" + idx, ex.size() != 0 ? ex.get("exam_tm") : " ");
            data.put("exam_org" + idx, ex.size() != 0 ? ex.get("org") : " ");
            data.put("exam_project" + idx, ex.size() != 0 ? ex.get("project") : " ");
            data.put("escore" + idx, ex.size() != 0 ? ex.get("score") : " ");
            data.put("exam_qualifycode" + idx, ex.size() != 0 ? ex.get("qualifycode") : " ");
        }

        // 6) 工作经历
        String sqlWork = """
        SELECT begin_tm, end_tm, workposi, workcont, post
        FROM title_workresu
        WHERE apply_id = ?
        ORDER BY begin_tm
        """;
        List<Map<String,Object>> works = jdbcTemplate.queryForList(sqlWork, applyId);
        for (int i = 0; i < 4; i++) {
            Map<String, Object> w = i < works.size() ? works.get(i) : new HashMap<>();
            int idx = i + 1;
            data.put("workresu_begin" + idx, w.size() != 0 ? w.get("begin_tm") : " ");
            data.put("workresu_end" + idx, w.size() != 0 ? w.get("end_tm") : " ");
            data.put("workresu_workposi" + idx, w.size() != 0 ? w.get("workposi") : " ");
            data.put("workresu_workcont" + idx, w.size() != 0 ? w.get("workcont") : " ");
            data.put("workresu_post" + idx, w.size() != 0 ? w.get("post") : " ");
        }

        // 7) 著作、论文及报告登记
        String sqlArticle = """
        SELECT artititle, publorg, charorg, volumes, publish_time, persduty
        FROM title_applyarticle
        WHERE apply_id = ?
        ORDER BY publish_time
        """;
        List<Map<String,Object>> articles = jdbcTemplate.queryForList(sqlArticle, applyId);
        for (int i = 0; i < 4; i++) {
            Map<String, Object> w = i < articles.size() ? articles.get(i) : new HashMap<>();
            int idx = i + 1;
            data.put("article_artititle" + idx, !w.isEmpty() ? w.get("artititle") : " ");
            data.put("article_publorg" + idx, !w.isEmpty() ? w.get("publorg") : " ");
            data.put("article_charorg" + idx, !w.isEmpty() ? w.get("charorg") : " ");
            data.put("article_volumes" + idx, !w.isEmpty() ? w.get("volumes") : " ");
            data.put("article_publish_time" + idx, !w.isEmpty() ? w.get("publish_time") : " ");
            data.put("article_persduty" + idx, !w.isEmpty() ? w.get("persduty") : " ");
        }

        // 8) 任现职以来考核情况
        String sqlAssess = """
        SELECT year, divtechpost, asserslt, asseorg, remark
        FROM title_applyassesitu
        WHERE apply_id = ?
        ORDER BY year
        """;
        List<Map<String,Object>> assesses = jdbcTemplate.queryForList(sqlAssess, applyId);
        for (int i = 0; i < 4; i++) {
            Map<String, Object> as = i < assesses.size() ? assesses.get(i) : new HashMap<>();
            int idx = i + 1;
            data.put("assess_year"        + idx, !as.isEmpty() ? as.get("year") : " ");
            data.put("assess_divtechpost" + idx, !as.isEmpty() ? as.get("divtechpost") : " ");
            data.put("assess_asserslt"    + idx, !as.isEmpty() ? as.get("asserslt") : " ");
            data.put("assess_asseorg"     + idx, !as.isEmpty() ? as.get("asseorg") : " ");
            data.put("assess_remark"      + idx, !as.isEmpty() ? as.get("remark") : " ");
        }

        // 9) 工作总结(单值)
        String sqlSumm = """
        SELECT presjobsumm
        FROM title_applytable
        WHERE apply_id = ?
        """;
        String summary = jdbcTemplate.queryForObject(sqlSumm, String.class, applyId);
        data.put("presjobsumm", summary);

        return data;
    }

(4)使用aspose将word转pdf

 /**
     * 商业版pdf许可 license,从 classpath 下读取 license.xml
     */
    public static boolean getLicense() {
        boolean result = false;
        InputStream is = null;
        try {
            Resource resource = new ClassPathResource("license.xml");
            is = resource.getInputStream();
            License aposeLic = new License();
            aposeLic.setLicense(is);
            result = true;
        } catch (Exception e) {
            e.printStackTrace();
        }finally {
            if (is != null) {
                try {
                    is.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return result;
    }
    /**
     * 将传入的 DOCX 文件转换成带完整样式的 PDF 并返回该 File。
     *
     * @param docxFile  Word 模板(已填充占位符)的 File
     * @return           生成的 PDF 临时文件
     * @throws Exception 转换失败时抛出
     */
    public File convertDocxToPdf(File docxFile, long applyId) throws Exception {
        getLicense(); // 验证License 若不验证则转化出的pdf文档会有水印产生
        // 1. 构造输出 PDF 的临时文件
        String uuid = IdUtil.simpleUUID();
        String fileName = uuid+".pdf";
        Path targetPath = Paths.get(fileLocalPath, "PreviewPdf", fileName);
        File pdfFile = new File(targetPath.toString());
        pdfFile.getParentFile().mkdirs();
        TitleApplyApplydataappe applyDataAppe = new TitleApplyApplydataappe();
        applyDataAppe.setApplyId(applyId);
        applyDataAppe.setAppefile(fileName);
        applyDataAppe.setFilesize(pdfFile.length());
        applyDataAppe.setAppefiledispnm("专业技术资格申报表预览_"+applyId+".pdf");
        applyDataAppe.setOpTm(LocalDateTime.now());
        applyDataAppe.setDir("PreviewPdf");
        titleApplyApplydataappeService.save(applyDataAppe);
        // 使用商业破解版 Aspose.Words 完成转换
        try (FileOutputStream os = new FileOutputStream(pdfFile)) {
            // Document 可以直接接收 File 或 String 路径
            Document doc = new Document(docxFile.getAbsolutePath());
            doc.save(os, SaveFormat.PDF);
        }

        return pdfFile;
    }
 

四、部署

单体后端jar包部署

docker run -d --name peer-boot   -v $PWD/peer-boot.jar:/app/peer-boot.jar -v /usr/share/fonts:/usr/share/fonts   --net host   eclipse-temurin:17-jdk   java -Dfile.encoding=utf-8 -jar /app/peer-boot.jar


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