//downloadFileName = java.net.URLDecoder.decode(filename,"UTF-8");
//downloadFileName = new String(filename.getBytes("iso8859-1"),"UTF-8");
//downloadFileName = URLEncoder.encode(filename,"UTF-8");
//downloadFileName = java.net.URLDecoder.decode(filename,"UTF-8");
//downloadFileName = new String(filename.getBytes("ISO-8859-1"),"UTF-8");
//downloadFileName = URLEncoder.encode(filename,"UTF-8");
downloadFileName = new String(filename.getBytes(), "ISO8859-1");
//downloadFileName = new String(filename.getBytes("GB2312"),"ISO8859-1");