java 代码
// 这里 URLEncoder.encode 以 utf-8 对文件名进行编码
String fileName = URLEncoder.encode("检索病例信息结果", "UTF-8").replaceAll("\\+", "%20");
// filename*=utf-8'' 告诉浏览器以 utf-8 编码解码得到文件名字
response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + ".xlsx");