java中文件下载时文件名乱码的解决方法

java下载文件时文件名出现乱码的解决办法：

    String userAgent = request.getHeader("User-Agent");      String formFileName = file.getFileName();              // 针对IE或者以IE为内核的浏览器：      if (userAgent.contains("MSIE") || userAgent.contains("Trident")) {          formFileName = java.net.URLEncoder.encode(formFileName, "UTF-8");      } else {          // 非IE浏览器的处理：          formFileName = new String(formFileName.getBytes("UTF-8"), "ISO-8859-1");

    }      response.setHeader("Content-disposition",String.format("attachment; filename=\"%s\"", formFileName));      response.setContentType("multipart/form-data");       response.setCharacterEncoding("UTF-8");