下载的空格变成+， 括号变成乱码-------处理文件名包含%20 不转换成空格

如果下载的文件名称包括空格、（、）、；、@、#、&、,逗号

 String newName = URLEncoder.encode(name, "UTF-8").replaceAll("\\+", "%20").replaceAll("%28", "\\(").replaceAll("%29", "\\)").replaceAll("%3B", ";").replaceAll("%40", "@").replaceAll("%23", "\\#").replaceAll("%26", "\\&").replaceAll("%2C,
"\\,");

如果下载的文件名称包括%20 chrome 浏览器回解析成空格

            // response.setContentType("." + URLEncoder.encode((newName), "UTF-8") + "; charset=UTF-8");

            response.setContentType(".dump9; charset=UTF-8");

            if (browserType != null && browserType.equals("GOOGLE_CHROME")) {

                response.setHeader("Content-disposition", "attachment; filename*=UTF-8''" + newName);  //处理文件名包含%20 不转换成空格

            } else {

                response.setHeader("Content-disposition", "attachment; filename=" + newName);

            }

            //response.setContentType("application/x-msdownload;");

            response.setContentType("application/dmp;");

            response.setHeader("Cache-Control", "no-cache");

            response.setHeader("Content-Length", String.valueOf(size));