poi-tl，根据word模板导出word（表格行循环，表格无表头的情况）

最近项目里要做一个根据客户提供的word模板导出word的功能，方法有很多，比如easyPoi（对word的支持并不是很好），freeMark（太麻烦不想研究），以及poi-tl，

最后研究了半天发现也就只有poi-tl比较符合我的需求，特意记录下以防日后用到忘记了。

这是想要的word结果

这是我的word模板

代码如下：

 try {
            DecimalFormat df = new DecimalFormat("###################.###########");
            SettlementResponse.All settlement = getDetails(settlementId);
            Map<String, Object> params = new HashMap<>();
            params.put("guestName", settlement.getBase().getGuestName());
            String visitStart = DateUtil.timestamp2String(settlement.getBase().getVisitTimeStart(),"yyyy年MM月dd日");
            String visitEnd = DateUtil.timestamp2String(settlement.getBase().getVisitTimeStart(),"MM月dd日");
            params.put("visitDate", visitStart+ "-" + visitEnd);
            SettlementResponse.Detail detail = settlement.getDetail();
            double total = 0;
            //住宿费列表
            if (MyUtil.isNotBlank(detail.getAccomResponse())){
                SettlementAccomResponse accomResponse = detail.getAccomResponse();
                Map<String,Object> accomMap = getAccomdation(accomResponse);
                params.put("accomList", accomMap.get("accomList"));
                params.put("accomOwn", accomMap.get("accomOwn"));
                params.put("accomTotal", accomMap.get("accomTotal"));
                total = total + accomResponse.getSubtotal().doubleValue();
            }
            //会场费列表
            List<Map<String,Object>> meetList = new ArrayList<>();
            if (CollectionUtil.isNotEmpty(detail.getMeetingResponseList())){
                Map<String,Object> meetingMap = getMeeting(detail.getMeetingResponseList());
                params.put("meetList", meetingMap.get("meetList"));
                params.put("meetTotal",meetingMap.get("meetTotal"));
                total = total + Double.parseDouble(meetingMap.get("meetTotal").toString());
            } else{
                meetList.add(new HashMap<String, Object>() {{
                    put("meetTime", "");
                    put("meetPlace", "");
                    put("roomName", "");
                    put("meetCost", "");
                }});
                params.put("meetList",meetList);
            }

            //餐饮费列表
            if (MyUtil.isNotBlank(detail.getMealsResponse())){
                List<SettlementMealsResponse.MealsDetail> mealsDetailList = detail.getMealsResponse().getMealsDetailList();
                Map<String,Object> mealsMap = getMeals(mealsDetailList);
                params.put("workMeal", mealsMap.get("workMeal"));
                params.put("dailMeal", mealsMap.get("dailMeal"));
                params.put("otheMeal", mealsMap.get("otheMeal"));
                params.put("mealsOwn", df.format(detail.getMealsResponse().getOwnExpense()));
                params.put("mealTotal", df.format(detail.getMealsResponse().getSubtotal()));
                total = total + detail.getMealsResponse().getSubtotal().doubleValue();
            }
            //其他费用列表
            List<Map<String,Object>> otherList = new ArrayList<Map<String,Object>>();
            if (CollectionUtil.isNotEmpty(detail.getOthersList())){
                Map<String,Object> otherMap = getOther(detail.getOthersList());
                params.put("otherList", otherMap.get("otherList"));
                params.put("otherTotal", otherMap.get("otherTotal"));
                total = total + Double.parseDouble(otherMap.get("otherTotal").toString());
            }else{
                otherList.add(new HashMap<String, Object>() {{
                    put("otherRemark", "");
                    put("otherCost", "");
                }});
                params.put("otherList", otherList);
            }
            //文印费
            params.put("printRemark", detail.getPrints().getDescription());
            params.put("printTotal",  df.format(detail.getPrints().getCost()));
            total = total + detail.getPrints().getCost().doubleValue();
            params.put("total", df.format(total));
            //word模板地址，如果项目需要部署在linux环境中，需要以流的方式读取文件否则会读取不到
            InputStream resource= this.getClass().getClassLoader().getResourceAsStream("static/template/settlement.docx");
            //渲染表格，new HackLoopTableRenderPolicy(true)即模板标签和循环行在同一行而不是在上一行
            HackLoopTableRenderPolicy policy = new HackLoopTableRenderPolicy(true);
            Configure config = Configure.builder()
                    .bind("accomList", policy)
                    .bind("meetList", policy)
                    .bind("workMeal", policy)
                    .bind("dailMeal", policy)
                    .bind("otheMeal", policy)
                    .bind("otherList", policy)
                    .build();
            XWPFTemplate template = XWPFTemplate.compile(resource, config).render(params);
            String fileName = "接待任务费用结算表" + "-" + System.currentTimeMillis();
            ExportWordUtils.downloadWord(response, fileName, template);
        } catch (Exception e) {
            e.printStackTrace();
        }

public class ExportWordUtils {

    /**
     * 根据模板填充内容生成word，并下载
     * @param templatePath word模板文件路径
     * @param paramMap     替换的参数集合
     */
    public static void compileWord(HttpServletResponse response, InputStream templatePath, Map<String, Object> paramMap, String fileName) throws UnsupportedEncodingException {
        // 读取模板templatePath并将paramMap的内容填充进模板，即编辑模板(compile)+渲染数据(render)
        XWPFTemplate template = XWPFTemplate.compile(templatePath).render(paramMap);
        downloadWord(response, fileName, template);
    }


    public static void downloadWord(HttpServletResponse response, String fileName, XWPFTemplate template) throws UnsupportedEncodingException {
        response.setContentType("application/octet-stream");
        fileName = URLEncoder.encode(fileName, "UTF-8");
        response.setHeader("Content-Disposition", "attachment;filename=" + fileName + ".docx");
        //设置生成的文件临时存放路径
        String rootPath="./wordTemplate";
        String filePath = rootPath + fileName;
        File newFile = new File(filePath);
        if(!newFile.getParentFile().exists()){
            newFile.getParentFile().mkdirs();
        }
        try {
            OutputStream out = response.getOutputStream();
            // 将填充之后的模板写入filePath
            template.write(out);
            out.flush();
            out.close();
            template.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

最后附上poi-tl的文档地址： http://deepoove.com/poi-tl/#hack-loop-table