本文共 1279 字，大约阅读时间需要 4 分钟。

1，setHeader()方法

用setHeader()方法设置响应头，为刷新“refresh”，然后设置几秒后刷新的时间和url地址

public void doGet(HttpServletRequest request, HttpServletResponse response)			throws ServletException, IOException {			//设置返回客户端的编码		response.setContentType("text/html;charset=UTF-8");		/*response.setIntHeader("refresh", 1);//设置1秒钟刷新一次				Random r = new Random();				response.getWriter().write(r.nextInt()+"");*/				response.getWriter().write("注册成功！3秒钟跳到主页");		//设置3秒钟跳转		response.setHeader("refresh", "3;url=/day09_00_HttpServletResponse/servlet/demo6");	}

2，sendRedirect()方法请求重定向response.sendRedirect("/day09_00_HttpServletResponse/servlet/demo8");然后就会重新定向到相应的servlet

public void doGet(HttpServletRequest request, HttpServletResponse response)			throws ServletException, IOException {		System.out.println("A:我要借钱！");		System.out.println("B:我不有，但是我可以告诉你谁有");		/*//告诉客户端要重新定向新的资源		response.setStatus(302);		//告诉浏览器要去访问哪个URL		response.setHeader("location", "/day09_00_HttpServletResponse/servlet/demo8");*/				//请求重定向		response.sendRedirect("/day09_00_HttpServletResponse/servlet/demo8");				System.out.println("A: 我去了");			}

重定向到的页面/servlet/demo8

public void doGet(HttpServletRequest request, HttpServletResponse response)			throws ServletException, IOException {		System.out.println("我有钱，我借你！");	}