解决浏览器下载中文文件乱码问题(包括IE)

        String os = System.getProperty("os.name");
        String userAgent = request.getHeader("User-Agent").toLowerCase();
        if(os.toLowerCase().indexOf("windows") != -1){
            //判断浏览器
            if(userAgent.indexOf("edge") > 0 || userAgent.indexOf("msie") > 0  || userAgent.indexOf("rv:11.0") > 0){
                fileName = URLEncoder.encode(fileName, "UTF-8");
            }else {
                fileName = new String(fileName.getBytes("GBK"), "ISO-8859-1");
            }
        }else{
            //判断浏览器
            if(userAgent.indexOf("msie") > 0){
                fileName = URLEncoder.encode(fileName, "ISO-8859-1");
            }
        }
        response.setHeader("Content-Disposition", "attachment;filename=\"" + fileName + "\"");