import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class Demo2 extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
//服务端控制各种浏览器禁止缓存页面资源
response.setHeader("expires","-1");
response.setHeader("cache-control","no-cache");
response.setHeader("pragma","no-cache");
//服务端向浏览器输出内容
response.getWriter().write("haha");
}
}
总结：
想让浏览器有何种行为，服务端只能通过响应头的方式来设置
想让服务器知道何种行为，浏览器只能通过请求头的方式来设置
原文地址：http://blog.51cto.com/357712148/2104342
