SpringBoot获取resources文件夹下文件并且实现下载
前言：将需要频繁下载，并且又不会被轻易修改的文件，放在resources目录下，这样就可以直接获取文件流；
一丶放置目录
二丶代码实现
@Controller
public class TestController {@GetMapping(value = "/test")public void test(HttpServletResponse response) {FileInputStream fis = null;ServletOutputStream sos = null;try {String fileName = "test.xlsx";//设置响应头response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));String path = "/excel/" + fileName;fis = new FileInputStream(new ClassPathResource(path).getFile());sos = response.getOutputStream();IOUtils.copy(fis, sos);} catch (Exception e) {e.printStackTrace();throw new RuntimeException("模板下载失败！");} finally {try {if (fis != null) {fis.close();}if (sos != null) {sos.flush();sos.close();}} catch (IOException e) {e.printStackTrace();}}}
}
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