java spring boot 获取resource目录下的文档

主要代码

String filePath="templates/test.xls"
ClassPathResource classPathResource = new ClassPathResource(filePath);
InputStream inputStream = classPathResource.getInputStream();

代码案例

public void downloadTemplate( HttpServletResponse response) {String path = "templates/test.xls";if (path == null) {throw new UserException("下载模板失败，模板未找到！");}String path="templates/线下成绩批量导入模板.xls";//资源路径Resource resource = new ClassPathResource(path);try (InputStream inputStream = resource.getInputStream()) {long contentLength = resource.contentLength();response.reset();response.setCharacterEncoding("UTF-8");response.addHeader("Content-Disposition", "attachment;filename*=utf-8''" + URLEncoder.encode(name, "UTF-8"));response.addHeader("Content-Length", "" + contentLength);response.setContentType("application/octet-stream");//写入输出流InputStream fis = new BufferedInputStream(inputStream);OutputStream outputStream = new BufferedOutputStream(response.getOutputStream());byte[] buffer = new byte[32 * 1024];int count = 0;while ((count = fis.read(buffer)) > 0) {outputStream.write(buffer, 0, count);}fis.close();outputStream.flush();} catch (IOException e) {log.error("下载模板接口异常", e);throw new UserException("模板下载失败!");}}