servlet下载文件名称乱码

文件名为fileName="人员信息表"+sessionid+".xls";:

response.setContentType("application/vnd.ms-excel;charset=UTF-8");

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

这样肯定会出现乱码

 

fileName = new String(fileName.getBytes("UTF-8"), "ISO8859-1");

如果加上这步处理,在firefox系浏览上正常

看下抓包显示：

Content-disposition: attachment;filename=%E4%BA%BA%E5%91%98%E4%BF%A1%E6%81%AF%E8%A1%A8A62A652E0F8A27B5B4B4F09FCC11B4C7.xls

Content-Type: application/vnd.ms-excel;charset=UTF-8

很明显可以看出是中文的UTF-8经iso传输

 

对于IE刚不同：

 fileName = URLEncoder.encode(fileName, "UTF-8");

Content-disposition: attachment;filename=...............DE043979618C4EB99C305E284B7DE90A.xls

Content-Type: application/vnd.ms-excel;charset=UTF-8

 ...在抓到的数据中显示为实体如：\344\272\272等等

 

所以要根据浏览器进行判断

if (request.getHeader("User-Agent").toLowerCase().indexOf("firefox") > 0)

fileName = new String(fileName.getBytes("UTF-8"), "ISO8859-1");//firefox浏览器

else 

    if (request.getHeader("User-Agent").toUpperCase().indexOf("MSIE") > 0)

    fileName = URLEncoder.encode(fileName, "UTF-8");//IE浏览器