web文件下载，路径或文件名中文乱码
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/**
* 附件下载
* @param dlPath 文件绝对路径
* @throws Exception?
*/
public void dl(String dlFilePath) throws Exception{
FacesContext context = FacesContext.getCurrentInstance();?
HttpServletResponse response = (HttpServletResponse)context.getExternalContext().getResponse();
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ServletContext servletContext = (ServletContext)context.getExternalContext().getContext();
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String fileFullName = servletContext.getRealPath(dlFilePath);
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File file = new File(fileFullName);
if(file.isDirectory() || !file.isFile()) return;
response.setContentType("application/x-msdownload");?
response.setCharacterEncoding("UTF-8");
response.setHeader("Content-Disposition", "attachment; filename="" + DataUtil.encodeFileName(file.getName())+""");
response.getOutputStream().write(DataUtil.fileToByte(file));
response.getOutputStream().flush();
context.responseComplete();
}
