spring boot 接口方式下载resources下静态文件

只限jar环境

@GetMapping("/downloadExcel")
public void downloadExcel(HttpServletResponse response) throws IOException{
    Resource resource = new ClassPathResource("/static/templates/personnel/personimport.xlsx");
    response.setContentType("application/x-download");
    response.setHeader("content-disposition", "attachment;filename=" + "personimport.xlsx");
    InputStream in = resource.getInputStream();
    int len = 0;
    byte buffer[] = new byte[1024];
    OutputStream out = response.getOutputStream();
    while ((len = in.read(buffer)) > 0) {
         out.write(buffer, 0, len);
    }
    if (in != null) {
        in.close();
      }
 }