A disable browser cache response header provided by the way, the following three can be disabled in response to the first question browser cache
1.Cache-control
2.pragma
3.expires
two. The sample code
package cn.xxx.Servlet; 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 FServlet extends HttpServlet { protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setHeader("Cache-control", "no-cache"); response.setHeader("pragma", "no-cache"); response.setDateHeader("expires", -1); } }