文件下载Content-Disposition中文乱码

 

String fileName = "中国.doc";
//方法1：
response.setHeader("Content-Disposition", "attachment; filename=" + java.net.URLEncoder.encode(fileName, "UTF-8"));

//方法2：使用指定编码，并告诉浏览器编码类型
response.setHeader("Content-Disposition", "attachment; filename*=UTF-8''" + URLEncoder.encode(fileName, "UTF-8");

//方法3：
response.setHeader("Content-Disposition", "attachment; filename=" + new String(fileName.getBytes("gb2312"), "ISO8859-1"));