浏览器下载poi-tl生成的word文件

1、生成单个word,直接写入response到浏览器下载

   //浏览器单个下载
                File sourceFile = new File(templatePath + "/" + fileName + ".docx");
                try {
                    //创建行循环策略
                    LoopRowTableRenderPolicy rowTableRenderPolicy = new LoopRowTableRenderPolicy();
                    //告诉模板引擎，绑定行循环策略
                    Configure configure = Configure.builder().bind("imgList", rowTableRenderPolicy) //附表1
                            .build();
                    XWPFTemplate template = XWPFTemplate.compile(sourceFile,configure).render(exportMap);
                    ServletOutputStream outputStream = response.getOutputStream();
                    response.setCharacterEncoding("UTF-8");
                    // 对文件名进行编码处理中文问题
                    exportFileName = new String(exportFileName.getBytes(), StandardCharsets.UTF_8);
                    response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(exportFileName, "UTF-8"));
                    template.write(outputStream);
                    outputStream.close();
                    template.close();
                } catch (Exception e) {
                    e.printStackTrace();
                }

2、生成多个word文件保存到本地，生成压缩包，再写入response到浏览器下载zip文件

（1）生成word文件到本地，并返回保存文件的目录

    private String saveReportExportWord(String templatePath, String fileName, Map exportParams,
                                        HttpServletRequest request, HttpServletResponse response, String uuid) {

        //创建行循环策略
        LoopRowTableRenderPolicy rowTableRenderPolicy = new LoopRowTableRenderPolicy();
        //告诉模板引擎，绑定行循环策略
        Configure configure = Configure.builder().bind("imgList", rowTableRenderPolicy) //附表1
                .build();

        String saveFilePath = "";
        // 校验
        Assert.notNull(templatePath, "模板路径不能为空");
        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");
        //模板文件

        File sourceFile = new File(templatePath);

        // 生成文档保存目录
        String savePath = uploadedReportPath;
        String subPathPrefix = uuid + "/";
        savePath += "/" + subPathPrefix;

        // 判断目录是否存在，不存在创建
        File dir = new File(savePath);
        if (!dir.exists()) {
            dir.mkdirs();
        }

        // 将文档保存到指定目录
        OutputStream fos = null;
        try {
            saveFilePath = savePath + fileName;
            fos = new FileOutputStream(saveFilePath);
            XWPFTemplate.compile(sourceFile, configure).render(exportParams).writeAndClose(fos);

        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            // 关闭输出流
            try {
                fos.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        return savePath;
    }

2.将word文件目录打包返回到response到浏览器下载

    //returnSavePath 是存放生成的word的文件夹
        if (StringUtils.isNotEmpty(returnSavePath)) {
            File zip = ZipUtil.zip(returnSavePath);
            try {
                ServletOutputStream outputStream = response.getOutputStream();
                FileInputStream ins = new FileInputStream(zip);
                response.setCharacterEncoding("UTF-8");
                // 对文件名进行编码处理中文问题
                fileName = new String(fileName.getBytes(), StandardCharsets.UTF_8);
                response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName + ".zip", "UTF-8"));
                byte[] b = new byte[1024];
                int length;
                while ((length = ins.read(b)) > 0) {
                    outputStream.write(b, 0, length);
                }
                outputStream.close();
                ins.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
            //删除临时文件
            zip.delete();//压缩包
            File childFile = new File(returnSavePath); //生成的文件
            try {
                deleteDirectory(childFile);
            } catch (IOException e) {
                e.printStackTrace();
            }

        }