Java预览PDF时的文件名称问题及解决

    private void viewPdfFile(String filePath, String originFileName) {
        File file = new File(filePath);
        try (OutputStream outputStream = response.getOutputStream();
             //加载pdf附件到PDF流中
             PDDocument document = PDDocument.load(new FileInputStream(file))) {
            response.setCharacterEncoding(Constant.UTF8);
            String showName = StringUtils.isNotBlank(originFileName) ? originFileName : file.getName();
            showName = URLEncoder.encode(showName, Constant.UTF8);
            response.setHeader("Content-Disposition", "inline;fileName=" + showName + ";fileName*=UTF-8''" + showName);
            //从PDF流中获得PDF文档属性对象
            PDDocumentInfORMation info = document.getDocumentInformation();
            //设置PDF文档属性对象的文件名称（最重要的环节）
            info.setTitle(StringUtils.isNotBlank(originFileName) ? originFileName : file.getName());
            document.setDocumentInformation(info);
            //修改完直接输出到响应体中
            document.save(outputStream);
        } catch (Exception e) {
            log.error(this.getClass().getName() + ".viewPdfFile：", e);
        }
    }

response.setContentType(“application/pdf; charset=UTF-8”);