String ua = request.getHeader("User-Agent");
if(ua != null){
//System.out.println("user-agent:" + ua);
if(ua.indexOf("MSIE 8.0") > 0){
response.setHeader("Cache-Control","private");
response.setHeader("Pragma","private");
}
}
//try{
HttpSession httpsession = request.getSession(false);
if(httpsession == null){
System.out.println("HttpSession null");
}else{
System.out.println("HttpSession:" + httpsession.getId());
}
if(httpsession.getAttribute("test") == null){
//throw getAttribute: Session already invalidated
//if(session.getAttribute("test") == null) {
System.out.println("Session not found");
try{
System.out.println("Start to craete session");
//request.getSession(true).setAttribute("test", "HelloSession");
//session.setAttribute("test", "HelloSession");
//httpsession.setAttribute("test", "HelloSession");
HttpSession newSession = request.getSession(true);
if(newSession.isNew()){
System.out.println("isNew session id:" + newSession.getId());
}else{
System.out.println("old session id:" + newSession.getId());
}
newSession.setAttribute("test", "HelloSession");
System.out.println("Suceed to craete session");
}catch(IllegalStateException illeagalStateEx){
System.out.println("Fail to craete session:"
+ illeagalStateEx.getMessage());
}
}else{
System.out.println("Session found");
String sessionValue =
(String)httpsession.getAttribute("test");
System.out.println("sessionValue:" + sessionValue);
}
//}catch(Exception ex){
//System.out.println("Global Exception:" + ex.getMessage());
//}
HttpServletRequestWrapper, override its getRequestURI()and other methods to return the new URL, and wrap the request with it. So you don't have to change the other filter mappings.
