Servlet实现下载 firefox下文件名有空格时，文件名会被截断 问题解决办法

之前是用：

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

修改如下（把filename用双引号引起来）就解决了：

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