springboot下载文件出现乱码怎么解决

?????Spring Boot?????????,??????????????????????????????:

1. ??Content-Disposition???????????????????URL??,????HttpHeaders??Content-Disposition???

String encodedFileName = URLEncoder.encode(fileName, "UTF-8").replaceAll("\\+", " ");
headers.add("Content-Disposition", "attachment; filename=\"" + encodedFileName + "\"");

2. ??Content-Type???application/octet-stream,?????????UTF-8?

headers.add("Content-Type", "application/octet-stream; charset=UTF-8");

3. ???????????????,??????????????

InputStream inputStream = new FileInputStream(file);
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));

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