Java下载指定内容的文件到本地

今天药忘吃喽~ 2023-06-30 12:54 93阅读 0赞 
  1. import org.apache.commons.io.IOUtils;
  2. import org.apache.commons.io.FileUtils;
  4. @PostMapping(value = "/download/file")
  5. public void downFileAuthor(HttpServletResponse response) {
  7.     FileInputStream fis = null;
  8.     try {
  9.         String path = "user.lic";
  10.         List<String> list = new ArrayList<>();
  11.         list.add("用户名：username");
  12.         list.add("密码：password");
  13.         File file = new File(path);
  14.             FileUtils.writeLines(file, list);
  15.         fis = new FileInputStream(file);
  17.         response.setCharacterEncoding("UTF-8");
  18.         response.setContentType("application/octet-stream; charset=UTF-8");
  19.         response.setHeader("Content-Disposition", "attachment; filename=" + new String(file.getName().getBytes("gb2312"), "ISO8859-1"));
  21.         OutputStream os = response.getOutputStream();
  22.         IOUtils.copy(fis, os);
  23.     } catch (Exception ex) {
  24.         ex.printStackTrace();
  25.     } finally {
  26.         try {
  27.         if (fis != null) {
  28.             fis.close();
  29.         }
  30.         } catch (Exception ex) {
  31.         ex.printStackTrace();
  32.         }
  33.     }
  34. }

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