java文件下载，解决火狐下载空格文件错误

写道

public void DownloadFileManager(String filename, String url)
throws IOException {
HttpServletResponse response = Struts2Utils.getResponse();

InputStream is = null;
OutputStream os = null;
try {
response.setHeader("Content-Disposition", "attachment;filename="
+ new String(filename.getBytes("gbk"), "iso-8859-1"));

response.setContentType("application/x-msdownload");
is = new FileInputStream(url);
os = response.getOutputStream();
byte[] buffer = new byte[21940];
int length = 0;
while ((length = is.read(buffer)) > 0) {
os.write(buffer, 0, length);
}

} catch (Exception e) {
e.printStackTrace();
} finally {
if (os != null) {
os.close();
}
if (is != null) {
is.close();
}
}

}
// 上面代码下载，如果文件名称出现空格，火狐无法下载

解决方法

public void DownloadFileManager(String filename, String url)
			throws IOException {
		HttpServletResponse response = Struts2Utils.getResponse();
		HttpServletRequest request = Struts2Utils.getRequest();
		InputStream is = null;
		OutputStream os = null;
		try {
		 	 String agent = (String)request.getHeader("USER-AGENT");  
			  if(agent != null && agent.indexOf("MSIE") == -1) {  
    		  String enableFileName = "=?UTF-8?B?" + (new String (Base64.encodeBase64(filename.getBytes("UTF-8")))) + "?=";  
			  response.setHeader("Content-Disposition", "attachment; filename=" + enableFileName);  
			  }else {  
			   // IE  
			 String enableFileName = new String(filename.getBytes("GBK"), "ISO-8859-1");  
			   response.setHeader("Content-Disposition", "attachment; filename=" + enableFileName);  
			  } 

	/*		 response.setHeader("Content-Disposition", "attachment;filename="
					+ new String(filename.getBytes("gbk"), "iso-8859-1")); */
		 
		 
			response.setContentType("application/x-msdownload");
			is = new FileInputStream(url);
			os = response.getOutputStream();
			byte[] buffer = new byte[21940];
			int length = 0;
			while ((length = is.read(buffer)) > 0) {
				os.write(buffer, 0, length);
			}

		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if (os != null) {
				os.close();
			}
			if (is != null) {
				is.close();
			}
		}

	}