Http常用操作汇总

禁用缓存

response.setHeader("Pragma", "no-cache");
response.setDateHeader("Expires", 0);
response.setHeader("Cache-Control", "no-cache,no-store");

Http+零拷贝进行文件传输

FileInputStream fis = new FileInputStream(new File("***"));
fis.getChannel().transferTo(0L, fis.getChannel().size(), Channels.newChannel(response.getOutputStream()));