解决方案1

String codedFileName = "导出文件名.xls";String agent = request.getHeader("USER-AGENT");            if(agent != null && agent.toLowerCase().indexOf("firefox") > 0)            {                codedFileName = "=?UTF-8?B?" + (new String(Base64Utils.encodeToString(codedFileName.getBytes("UTF-8")))) + "?=";            } else {                codedFileName =  java.net.URLEncoder.encode(codedFileName, "UTF-8");            }response.setHeader("Content-Disposition", "attachment;filename=" + codedFileName);

解决方案2

response.setHeader("Content-Disposition", "attachment;filename*=utf-8'zh_cn'" + codedFileName);