文件流输出文件名中文不显示

response.setCharacterEncoding(“UTF-8”);
response.setContentType(“text/html;charset=UTF-8”);
response.setLocale(new java.util.Locale(“zh”,“CN”));

//  一万行代码没有显示
OutputStream output = null;
		try {
			response.reset();
			response.setContentType("application/msexcel;charset=UTF-8");
//			response.setCharacterEncoding("UTF-8");
			fileName = URLEncoder.encode(fileName,"UTF-8");
			output = response.getOutputStream();
			response.setHeader("Content-disposition", "attachment; filename="+fileName);
			wb.write(output);
			if(output != null) output.close();
		} catch (IOException e) {
			// TODO
			e.printStackTrace();
		}

FileInfo info = new FileInfo(strFilePath);
long fileSize = info.Length;
Response.Clear();
Response.Buffer = true;
Response.ContentType = "application/x-zip-compressed";
Response.AddHeader("Accept-Language", "zh-cn");
Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpContext.Current.Server.UrlEncode(info.Name));
//不指明Content-Length用Flush的话不会显示下载进度   
Response.AddHeader("Content-Length", fileSize.ToString());
Response.TransmitFile(strFilePath, 0, fileSize);
Response.Flush();
Response.Close();
info.Delete();