SpringBoot根据模板生成Word文件，然后Word转PDF

1.在pom文件中导入相关依赖

<!--根据模板生成Word 需要依赖 开始-->
        <dependency>
        <groupId>cn.afterturn</groupId>
        <artifactId>easypoi-base</artifactId>
        <version>4.1.0</version>
    </dependency>
    <dependency>
        <groupId>org.jfree</groupId>
        <artifactId>jcommon</artifactId>
        <version>1.0.24</version>
    </dependency>
    <dependency>
        <groupId>org.jfree</groupId>
        <artifactId>jfreechart</artifactId>
        <version>1.5.0</version>
    </dependency>
    <!--根据模板生成Word 需要依赖 结束-->
 
 
    <!--word转pdf 需要依赖 开始-->
    <dependency>
        <groupId>com.itextpdf</groupId>
        <artifactId>itextpdf</artifactId>
        <version>5.4.3</version>
    </dependency>
    <dependency>
        <groupId>org.docx4j</groupId>
        <artifactId>docx4j</artifactId>
        <version>6.1.2</version>
        <exclusions>
            <!--生成word的依赖包里 有该依赖了，所以剔除-->
            <exclusion>
                <artifactId>commons-compress</artifactId>
                <groupId>org.apache.commons</groupId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.docx4j</groupId>
        <artifactId>docx4j-export-fo</artifactId>
        <version>6.0.0</version>
    </dependency>
    <!--word转pdf 需要依赖 结束-->

2.创建Word模板文件test.docx,设置属性，放入到项目中。

test.docx模板用{{姓名}}符号包起来。

3.新建工具类PdfUtil3

import cn.afterturn.easypoi.word.WordExportUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.docx4j.Docx4J;
import org.docx4j.convert.out.FOSettings;
import org.docx4j.fonts.IdentityPlusMapper;
import org.docx4j.fonts.Mapper;
import org.docx4j.fonts.PhysicalFonts;
import org.docx4j.openpackaging.packages.WordprocessingMLPackage;
import org.springframework.util.Assert;

import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
@Slf4j
public class PdfUtil3 {
    private static String separator = File.separator;//文件夹路径分格符
    /**
     * 生成word  只支持docx
     *
     * @param templatePath 模板文件路径
     * @param temDir 生成文件的目录
     * @param fileName 生成文件名
     * @param params 参数
     */
    public static String exportWord(String templatePath, String temDir, String fileName, Map<String, Object> params) {
        Assert.notNull(templatePath, "模板路径不能为空");
        Assert.notNull(temDir, "临时文件路径不能为空");
        Assert.notNull(fileName, "导出文件名不能为空");
        Assert.isTrue(fileName.endsWith(".docx"), "word导出请使用docx格式");
        if (!temDir.endsWith("/")) {
            temDir = temDir + File.separator;
        }
        File dir = new File(temDir);
        if (!dir.exists()) {
            dir.mkdirs();
        }
        String tmpPath = "";
        try {
            XWPFDocument doc = WordExportUtil.exportWord07(templatePath, params);

            tmpPath = temDir + fileName;
            FileOutputStream fos = new FileOutputStream(tmpPath);
            doc.write(fos);
            fos.flush();
            fos.close();
        } catch (Exception e) {
            //e.printStackTrace();
        }
        return tmpPath;
    }


    public static void downloadFile(HttpServletResponse response,String ID, String NAME) throws UnsupportedEncodingException {
        String downloadFilePath = "swxxPDF/"+NAME+ID+"事务信息表.pdf";//被下载的文件在服务器中的路径,
        String fileName =NAME+"的事务信息表.pdf";//被下载文件的名称

        File file = new File(downloadFilePath);
        if (file.exists()) {
            response.setContentType("application/force-download");// 设置强制下载不打开
//            response.addHeader("Content-Disposition", "attachment;fileName=" + fileName);
            //中文名称下载
            response.setHeader("Content-Disposition",
                    "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
            byte[] buffer = new byte[1024];
            FileInputStream fis = null;
            BufferedInputStream bis = null;
            OutputStream outputStream = null;
            try {
                fis = new FileInputStream(file);
                bis = new BufferedInputStream(fis);
                outputStream = response.getOutputStream();
                int i = bis.read(buffer);
                while (i != -1) {
                    outputStream.write(buffer, 0, i);
                    i = bis.read(buffer);
                }
                outputStream.flush();
            } catch (Exception e) {
                //e.printStackTrace();
            } finally {
                if (outputStream != null) {
                    try {
                        outputStream.close();
                    } catch (IOException e) {
                        //e.printStackTrace();
                    }
                }
                if (bis != null) {
                    try {
                        bis.close();
                    } catch (IOException e) {
                        //e.printStackTrace();
                    }
                }
                if (fis != null) {
                    try {
                        fis.close();
                    } catch (IOException e) {
                        //e.printStackTrace();
                    }
                }
            }
        }
    }

    /**
     * word（docx）转pdf
     *
     * @param wordPath docx文件路径
     * @return
     */
    public static String convertDocx2Pdf(String wordPath,String ID,String NAME) {
        OutputStream os = null;
        InputStream is = null;
        try {
            is = new FileInputStream(new File(wordPath));
            WordprocessingMLPackage mlPackage = WordprocessingMLPackage.load(is);
            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("宋体扩展", PhysicalFonts.get("simsun-extB"));
            fontMapper.put("仿宋", PhysicalFonts.get("FangSong"));
            fontMapper.put("仿宋_GB2312", PhysicalFonts.get("FangSong_GB2312"));
            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"));

            mlPackage.setFontMapper(fontMapper);

            //输出pdf文件路径和名称
//            String fileName = "pdfNoMark_" + System.currentTimeMillis() + ".pdf";
//            String fileName = "事务信息表.pdf";
            String fileName =NAME+ID+"事务信息表.pdf";

//            String pdfNoMarkPath = System.getProperty("java.io.tmpdir").replaceAll(separator + "$", "") + separator + fileName;
            String pdfNoMarkPath = "swxxPDF/" + separator + fileName;

            os = new java.io.FileOutputStream(pdfNoMarkPath);

            //docx4j  docx转pdf
            FOSettings foSettings = Docx4J.createFOSettings();
            foSettings.setWmlPackage(mlPackage);
            Docx4J.toFO(foSettings, os, Docx4J.FLAG_EXPORT_PREFER_XSL);

            is.close();//关闭输入流
            os.close();//关闭输出流

            return "";
        } catch (Exception e) {
            //e.printStackTrace();
            try {
                if (is != null) {
                    is.close();
                }
                if (os != null) {
                    os.close();
                }
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        } finally {
            File file = new File(wordPath);
            if (file != null && file.isFile() && file.exists()) {
                file.delete();
            }
        }
        return "";
    }
}

4.Conttroller

@ApiResponses({
            @ApiResponse(code = 200, message = "成功", response = Activity.class)
    })
    @ApiOperation(value = "导出Word的PDF")
    @GetMapping(value = "/exportWordPDF", produces = "application/octet-stream")
    public void exportWord(@ApiIgnore MyHttpServletRequestWrapper request, HttpServletResponse response, String affairid) throws UnsupportedEncodingException, UnsupportedEncodingException {
        SysUserVO user = request.getUser();
        String ID = user.getSysUserId();
        Map<String, Object> map = new HashMap<>();
		//数据库查询字段数据
        List<Map<String, Object>> listMessageDetail = activityService.getlList(affairid);
        String sysuserrealname = "  ";
        String sysusercertificatetype = "  ";
        if (listMessageDetail.size() > 0) {
            if (listMessageDetail.get(0).get("sysuserrealname") != null && listMessageDetail.get(0).get("sysuserrealname").toString().length() != 0) {
                sysuserrealname = listMessageDetail.get(0).get("sysuserrealname").toString();
            }
            if (listMessageDetail.get(0).get("sysusercertificatetype") != null && listMessageDetail.get(0).get("sysusercertificatetype").toString().length() != 0) {
                sysusercertificatetype = listMessageDetail.get(0).get("sysusercertificatetype").toString();
            }        
        }
        map.put("姓名", sysuserrealname);
        map.put("证件类型", sysusercertificatetype);
        String filepath = PdfUtil3.exportWord("templates/test.docx", "swxxPDF/", "生成文件.docx", map);
        PdfUtil3.convertDocx2Pdf(filepath, ID, sysuserrealname);
        PdfUtil3.downloadFile(response, ID, sysuserrealname);
    }

4.Excel循环输出

格式：{{$fe:maplist t.时间 t.操作人 t.联系方式 t.操作内容}}
代码查询放入maplist

 List<Map<String, String>> listMapA = new ArrayList<Map<String, String>>();
 //数据库查询数据
        List<Map<String, Object>> listMap = activityService.getlLisbllc(affairid);
        for (int i = 0; i < listMap.size(); i++) {
            String flowlogtime = "  ";
            String sysuserrealnameczry = "  ";
            String sysuserphoneczry = "  ";
            String flowlogcontentczry = "  ";
            if (listMap.get(i).get("flowlogtime") != null && listMap.get(i).get("flowlogtime").toString().length() != 0) {
                SimpleDateFormat simpleDateFormat = new SimpleDateFormat("YYYY-MM-dd HH:mm:ss");
                flowlogtime = simpleDateFormat.format(listMap.get(i).get("flowlogtime"));
            }
            if (listMap.get(i).get("sysuserrealnameczry") != null && listMap.get(i).get("sysuserrealnameczry").toString().length() != 0) {
                sysuserrealnameczry = listMap.get(i).get("sysuserrealnameczry").toString();
            }
            if (listMap.get(i).get("sysuserphoneczry") != null && listMap.get(i).get("sysuserphoneczry").toString().length() != 0) {
                sysuserphoneczry = listMap.get(i).get("sysuserphoneczry").toString();
            }
            if (listMap.get(i).get("flowlogcontentczry") != null && listMap.get(i).get("flowlogcontentczry").toString().length() != 0) {
                flowlogcontentczry = listMap.get(i).get("flowlogcontentczry").toString();
            }
            Map<String, String> lm = new HashMap<String, String>();
            lm.put("时间", flowlogtime);
            lm.put("操作人", sysuserrealnameczry);
            lm.put("联系方式", sysuserphoneczry);
            lm.put("操作内容", flowlogcontentczry);
            listMapA.add(lm);
        }
        map.put("maplist", listMapA);
        map.put("姓名", sysuserrealname);
        map.put("证件类型", sysusercertificatetype);
        String filepath = PdfUtil3.exportWord("templates/test.docx", "swxxPDF/", "生成文件.docx", map);
        PdfUtil3.convertDocx2Pdf(filepath, ID, sysuserrealname);
        PdfUtil3.downloadFile(response, ID, sysuserrealname)

注意事项
在通过easypoi导出word模板和通过docx4j将导出的word转换成pdf的过程中会出现很多问题，下面将介绍比较重要的几个注意事项。

1.遍历指令的使用
假设有如下的指令，其中一行遍历写在表格中，另一行遍历写在表格外

导出的结果如下，会发现只有表格内的指令生效了

因为easypoi本身是用来导出excel表格的，所以遍历的指令是没有兼容word模板的。

表格中的遍历指令

可以发现表格最后一列应有的数据不见了，而且可以推测数据是被覆盖而不是没有插入。

但是如果在遍历指令的下一行表格中插入数据

可以得出结论表格中如果出现遍历数据，那么同一行的其他数据会被覆盖（包括被空白覆盖）。如果遍历的指令没有写在第一列也是无法生效的。