Java 根据模板导出PDF

前言

本文为我搜集的根据模板导出PDF的方法整理而来,所以贴了好多帖子的链接。有的方法仅适合特殊的业务场景,可以根据业务需求选择合适的方法。写的不好请轻喷。

思路一:直接导出pdf

使用itext模板导出pdf


思路二:先导出word再转成pdf

1)导出word

2)word转pdf


最终方案

docx4j spire.doc.free + freemarker

  1. 模板准备

    将占位变量名写在模板 testTemplate.docx的对应位置上,用 ${}包起来。

    image

    把复制一份副本,将副本 .docx 的后缀名重命名为 .zip。解压后找到 /word/document.xml,编译器打开文件,代码格式化后,对比例如 ${repliedUserId} 的占位参数是否被拆开(如果拆开需手动修改),修改名字为 testDocument.xml。

    将源模板 testTemplate.docx 和 testDocument.xml 放到相应位置。

  2. maven依赖

    <dependencies>
    <!-- 动态生成word-->
    <dependency>
    <groupId>org.freemarker</groupId>
    <artifactId>freemarker</artifactId>
    <version>2.3.22</version>
    </dependency>
    <!-- docx转pdf-->
    <dependency>
    <groupId>org.docx4j</groupId>
    <artifactId>docx4j-JAXB-Internal</artifactId>
    <version>8.2.4</version>
    </dependency>
    <dependency>
    <groupId>org.docx4j</groupId>
    <artifactId>docx4j-export-fo</artifactId>
    <version>8.2.4</version>
    </dependency>
    <!-- https://www.e-iceblue.cn/spiredocforjava/spire-doc-for-java-program-guide-content.html-->
    <!-- https://mvnrepository.com/artifact/e-iceblue/spire.doc.free -->
    <dependency>
    <groupId>e-iceblue</groupId>
    <artifactId>spire.doc.free</artifactId>
    <version>5.2.0</version>
    </dependency>
    </dependencies>
    <repositories>
    <repository>
    <id>com.e-iceblue</id>
    <name>e-iceblue</name>
    <url>https://repo.e-iceblue.cn/repository/maven-public/</url>
    </repository>
    </repositories>
  3. Controller

    @PostMapping("/pdfExport")
    public ResponseEntity exportPdf(@RequestParam Map<String, Object> params) {
    try {
    // 查找业务数据
    TestEntity testEntity = testService.querySheet(params);
    // 格式转换时的暂存文件名
    String fileUuid = UUID.randomUUID().toString().replaceAll("-", "");
    String toDocxPath = "E://project//test//ToPDF//word//" + fileUuid + ".docx";
    String toPdfPath = "E://project//test//ToPDF//pdf//" + fileUuid + ".pdf";
    String toXmlPath = "E://project//test//ToPDF//xml//" + fileUuid + ".xml";
    String docxTemplate = "E://project//test//ToPDF//template//testTemplate.docx";
    // .xml转.docx(testDocument.xml表示在项目的相对路径下)
    XmlToDocx.toDocx("testDocument.xml",docxTemplate, toXmlPath, toDocxPath, testEntity);
    // .docx转.pdf
    WordToPdf.docxToPdf(toDocxPath, toPdfPath);
    // 下载pdf并删除本地pdf
    ResponseEntity response = WordToPdf.downloadPdf("这是PDF的名字啊", toPdfPath);
    return response;
    } catch (Exception e) {
    throw new BusinessException("下载PDF失败!" + e.getMessage());
    }
    }
  4. XmlToDocx类

    import java.io.*;
    import java.util.Enumeration;
    import java.util.Map;
    import java.util.zip.ZipEntry;
    import java.util.zip.ZipException;
    import java.util.zip.ZipFile;
    import java.util.zip.ZipOutputStream;
    /**
    * 其实docx属于zip的一种,这里只需要操作word/document.xml中的数据,其他的数据不用动
    *
    * @author
    *
    */
    public class XmlToDocx {
    /**
    *
    * @param xmlTemplate xml的文件名
    * @param docxTemplate docx的路径和文件名(.docx模板)
    * @param xmlTemp 填充完数据的临时xml
    * @param toFilePath 目标文件名
    * @param object 需要动态传入的数据
    */
    public static void toDocx(String xmlTemplate, String docxTemplate, String xmlTemp, String toFilePath, Object object) {
    try {
    // 1.object是动态传入的数据
    // 这个地方不能使用FileWriter因为需要指定编码类型否则生成的Word文档会因为有无法识别的编码而无法打开
    // Writer w1 = new OutputStreamWriter(new FileOutputStream(xmlTemp), "gb2312");
    Writer w1 = new OutputStreamWriter(new FileOutputStream(xmlTemp), "utf-8");
    // 2.把object中的数据动态由freemarker传给xml
    XmlTplUtil.process(xmlTemplate, object, w1);
    // 3.把填充完成的xml写入到docx中
    XmlToDocx xtd = new XmlToDocx();
    File xmlTempFile = new File(xmlTemp);
    xtd.outDocx(xmlTempFile, docxTemplate, toFilePath);
    // 删除临时xml文件
    xmlTempFile.delete();
    }catch (Exception e) {
    e.printStackTrace();
    }
    }
    /**
    *
    * @param documentFile 动态生成数据的docunment.xml文件
    * @param docxTemplate docx的模板
    * @param toFilePath 需要导出的文件路径
    * @throws ZipException
    * @throws IOException
    */
    public void outDocx(File documentFile, String docxTemplate, String toFilePath) throws ZipException, IOException {
    try {
    File docxFile = new File(docxTemplate);
    ZipFile zipFile = new ZipFile(docxFile);
    Enumeration<? extends ZipEntry> zipEntrys = zipFile.entries();
    ZipOutputStream zipout = new ZipOutputStream(new FileOutputStream(toFilePath));
    int len = -1;
    byte[] buffer = new byte[1024];
    while (zipEntrys.hasMoreElements()) {
    ZipEntry next = zipEntrys.nextElement();
    InputStream is = zipFile.getInputStream(next);
    // 把输入流的文件传到输出流中 如果是word/document.xml由我们输入
    zipout.putNextEntry(new ZipEntry(next.toString()));
    if ("word/document.xml".equals(next.toString())) {
    InputStream in = new FileInputStream(documentFile);
    while ((len = in.read(buffer)) != -1) {
    zipout.write(buffer, 0, len);
    }
    in.close();
    } else {
    while ((len = is.read(buffer)) != -1) {
    zipout.write(buffer, 0, len);
    }
    is.close();
    }
    }
    zipout.close();
    } catch (Exception e) {
    e.printStackTrace();
    }
    }
    }
  5. WordToPdf类

    import org.apache.commons.io.IOUtils;
    import org.docx4j.Docx4J;
    import org.docx4j.fonts.IdentityPlusMapper;
    import org.docx4j.fonts.Mapper;
    import org.docx4j.fonts.PhysicalFonts;
    import org.docx4j.openpackaging.exceptions.Docx4JException;
    import org.docx4j.openpackaging.packages.WordprocessingMLPackage;
    import org.springframework.http.HttpHeaders;
    import org.springframework.http.HttpStatus;
    import org.springframework.http.ResponseEntity;
    import java.io.*;
    import java.net.URLEncoder;
    public class WordToPdf {
    /**
    * (Docx4J).docx转.pdf(当docx的一行全是英文以及标点符号时转换的Pdf那一行会超出范围 https://segmentfault.com/q/1010000043372748)
    * @param docxPath docx文件路径
    * @param pdfPath 输出的pdf文件路径
    * @throws Exception
    */
    @Deprecated
    public static boolean docxToPdf(String docxPath, String pdfPath) throws Exception {
    FileOutputStream out = null;
    try {
    File docxfile = new File(docxPath);
    WordprocessingMLPackage pkg = Docx4J.load(docxfile);
    Mapper fontMapper = new IdentityPlusMapper();
    fontMapper.put("隶书", PhysicalFonts.get("LiSu"));
    fontMapper.put("宋体", PhysicalFonts.get("SimSun"));
    fontMapper.put("微软雅黑", PhysicalFonts.get("Microsoft Yahei"));
    fontMapper.put("黑体", PhysicalFonts.get("SimHei"));
    fontMapper.put("楷体", PhysicalFonts.get("KaiTi"));
    fontMapper.put("新宋体", PhysicalFonts.get("NSimSun"));
    fontMapper.put("华文行楷", PhysicalFonts.get("STXingkai"));
    fontMapper.put("华文仿宋", PhysicalFonts.get("STFangsong"));
    fontMapper.put("仿宋", PhysicalFonts.get("FangSong"));
    fontMapper.put("幼圆", PhysicalFonts.get("YouYuan"));
    fontMapper.put("华文宋体", PhysicalFonts.get("STSong"));
    fontMapper.put("华文中宋", PhysicalFonts.get("STZhongsong"));
    fontMapper.put("等线", PhysicalFonts.get("SimSun"));
    fontMapper.put("等线 Light", PhysicalFonts.get("SimSun"));
    fontMapper.put("华文琥珀", PhysicalFonts.get("STHupo"));
    fontMapper.put("华文隶书", PhysicalFonts.get("STLiti"));
    fontMapper.put("华文新魏", PhysicalFonts.get("STXinwei"));
    fontMapper.put("华文彩云", PhysicalFonts.get("STCaiyun"));
    fontMapper.put("方正姚体", PhysicalFonts.get("FZYaoti"));
    fontMapper.put("方正舒体", PhysicalFonts.get("FZShuTi"));
    fontMapper.put("华文细黑", PhysicalFonts.get("STXihei"));
    fontMapper.put("宋体扩展", PhysicalFonts.get("simsun-extB"));
    fontMapper.put("仿宋_GB2312", PhysicalFonts.get("FangSong_GB2312"));
    fontMapper.put("新細明體", PhysicalFonts.get("SimSun"));
    pkg.setFontMapper(fontMapper);
    out = new FileOutputStream(pdfPath);
    //docx4j docx转pdf
    FOSettings foSettings = Docx4J.createFOSettings();
    // foSettings.setWmlPackage(pkg);
    foSettings.setOpcPackage(pkg);
    Docx4J.toFO(foSettings, out, Docx4J.FLAG_EXPORT_PREFER_XSL);
    // Docx4J.toPDF(pkg, out);
    // 删除源.docx文件
    docxfile.delete();
    return true;
    // } catch (FileNotFoundException e) {
    // e.printStackTrace();
    // } catch (Docx4JException e) {
    // e.printStackTrace();
    } catch (Exception e) {
    e.printStackTrace();
    return false;
    } finally {
    if (out != null) {
    try {
    out.close();
    } catch (IOException e) {
    e.printStackTrace();
    }
    }
    }
    }
    /**
    * https://www.e-iceblue.cn/spiredocforjavaconversion/java-convert-word-to-pdf.html
    * (spire.doc.free:
    * 免费版有篇幅限制。在加载或保存 Word 文档时,要求 Word 文档不超过 500 个段落,25 个表格。
    * 同时将 Word 文档转换为 PDF 和 XPS 等格式时,仅支持转换前三页。)
    * (spire.doc.free)word转pdf
    * @param wordInPath word输入路径
    * @param pdfOutPath Pdf输出路径
    * @return
    */
    public static boolean convertWordToPdf(String wordInPath, String pdfOutPath) {
    try {
    //实例化Document类的对象
    Document doc = new Document();
    //加载Word
    doc.loadFromFile(wordInPath);
    //保存为PDF格式
    doc.saveToFile(pdfOutPath, FileFormat.PDF);
    return true;
    } catch (Exception e) {
    // e.printStackTrace();
    return false;
    } finally {
    // 删除源word文件
    File docxfile = new File(wordInPath);
    if (docxfile.exists()) {
    docxfile.delete();
    }
    }
    }
    }
posted @   似有风中泣  阅读(6027)  评论(0编辑  收藏  举报
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