@RequestMapping(value ="/DownloadFile")

public ResponseEntity<byte

     //  接受的是UTF-8

req.setCharacterEncoding("utf-8");

//獲取專案根目錄

String path="D:\\tomcat\\apache-tomcat-7.0.52\\apache-tomcat-7.0.52\\wtpwebapps\\AjaxUpload\\反饋報告.pdf";

//獲取檔名

String filename="反饋報告

File file = null;

HttpHeaders headers =null;

try {

System.out.println(filename);//myfiles

file =new File(path);

//請求頭

headers =new HttpHeaders();

StringfileName1 =new String(filename.getBytes("UTF-8"),"iso-8859-1");//解決檔名亂碼

//通知瀏覽器以attachment（下載方式）開啟圖片

headers.setContentDispositionFormData("attachment"

//application/octet-stream二進位制流資料（最常見的檔案下載）。

headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);

} catch (Exceptione) {

thrownew RuntimeException(e);

}

returnnew ResponseEntity<byte[]>(FileUtils.readFileToByteArray(file),headers, HttpStatus.OK);