一、前端代碼
</!DOCTYPE html>
<html>
<head>
<title></title>
<script>
function download(){
const link = document.createElement('a')
link.download = "template.xlsx"
link.style.display = 'none'
link.href = 'http://localhost:8080/test/downloadTemplate'
document.body.appendChild(link)
link.click()
}
</script>
</head>
<body>
<input type="button" onclick="download()" name="download" value="download" />
</body>
</html>二、後端代碼
/**
* 下載導入模板
*
* @param response
* @return
*/
@GetMapping(value = "downloadTemplate")
@ResponseBody
public void downloadTemplate(HttpServletResponse response) {
File templatePath = new File("D:/tempTest");
if (!templatePath.exists()) {
templatePath.mkdirs();
}
InputStream in = null;
OutputStream out = null;
try {
String fileName = "template.txt";
File file = new File("D:/tempTest/" + fileName);
if(!file.exists()){
file.createNewFile();
}
in = new BufferedInputStream(new FileInputStream(file));
// 設置response的Header
response.addHeader("Content-Disposition", "attachment;filename=" + new String(fileName.getBytes()));
response.addHeader("Content-Length", "" + file.length());
out = new BufferedOutputStream(response.getOutputStream());
response.setContentType("application/octet-stream");
byte[] buffer = new byte[1024];
int count;
while ((count = in.read(buffer)) > 0) {
out.write(buffer, 0, count);
}
out.flush();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (in != null) {
in.close();
}
if (out != null) {
out.close();
}
} catch (IOException e) {
}
}
}此文結束