代码语言：javascript复制
@GetMapping("/download-template")
public void downloadTemplate(HttpServletResponse httpServletResponse) throws IOException {
InputStream inputStream = null;
// 读取Resource下的文件 "模版.xlsx" 获取其输入流 方式1
inputStream = new ClassPathResource("模版.xlsx").getInputStream();
//inputStream = getClass().getResourceAsStream("/模版.xlsx"); // 读取Resource下的文件 "模版.xlsx" 获取其输入流 方式2
// 获取输出流
ServletOutputStream outputStream = httpServletResponse.getOutputStream();
// 指定文件名，这里需要注意一下，转为ISO-8859-1，不然不支持中文作为文件名称
String fileName = "模版" DateUtil.now() ".xlsx";
fileName = new String(fileName.getBytes("UTF-8"), "ISO-8859-1");
// 指定相应信息
httpServletResponse.setContentType("application/vnd.ms-excel");
httpServletResponse.setHeader("Content-disposition", "attachment;filename=" fileName);
// COPY流
byte[] buffer = new byte[4096];
int bytesRead;
while ((bytesRead = inputStream.read(buffer)) != -1) {
outputStream.write(buffer, 0, bytesRead);
}
// 刷新输出流
outputStream.flush();
// 关闭相应的流
outputStream.close();
inputStream.close();
}
