How to use Firefox to download garbled characters of Chinese file names

For Java-written downloads, it is normal to use IE by default and 360 browsers for downloads. The text in the file name is garbled during the download using Firefox, and the solution is recorded here:

First, make a judgment on the page to determine the browser, and then pass a parameter to the servlet for different encoding methods:
Firefox:
Response. addheader ("content-disposition", "attachment; filename =" + new string (filename. getbytes ("gb2312"), "ISO-8859-1 "));
IE and others:
Response. addheader ("content-disposition", "attachment; filename =" + urlencoder. encode (filename, "UTF-8 "));

For details, refer to the following link:

Http://bbs.csdn.net/topics/370099592

By the way, how does Java determine the browser type:

Request. getheader ("User-Agent") contains information such as the browser operating system.