JQuery Easyui Session timeout return to login page

Recent projects using jquery Easyui Development, session timeout, no login direct access to the page need to return to the login page special processing.

Description: Test Setup failure time is 1 minutes, login success after 1 minutes to click Action Penalty event, perform ① connection to com.lactec.framework.ac.filter.AuthFilter this class

Determines which action action to perform. To determine if the session is empty, the timeout is returned, I use the AJAX request: If it is the AJAX request response header will have, X-requested-with;

Settings: Rep.setheader ("Sessionstatus", "timeout"),//Setting session status in response header
Rep.getwriter (). Print ("Login timed out!") "); Print a return value, no this line, in the tabs page can not jump out (the navigation bar to jump out), the specific reason is unclear

Front section through xmlhttprequest.getresponseheader ("Sessionstatus"),//through the XMLHttpRequest to obtain the response head, give a hint.

For the project on-line, will involve multiple servers, so jump to the server IP to jump to the problem, solution: Window.location.host

Code section: ①web. XML partial Configuration Code

<!--filter permission authentication only for AMF requests
<filter>
<filter-name>authFilter</filter-name>
<filter-class>com.lactec.framework.ac.filter.AuthFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>authFilter</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>
<!--session Expiration time is 30 minutes--
<session-config>
<session-timeout>30</session-timeout>
</session-config>

②java Code

public class AuthFilter extends Baseaction implements Filter {

public void DoFilter (ServletRequest request, Servletresponse Response,filterchain chain) throws IOException, servletexception {
Login to judge if it is/crm_web/loginaction.do login jump
HttpServletRequest req = (httpservletrequest) request;
HttpServletResponse rep = (HttpServletResponse) response;
System.out.println (Req.getrequesturi ());
String uri = Req.getrequesturi ();//Get Login action
if (Uri.indexof ("Loginaction") >=0) {
Chain.dofilter (request, response);//Jump page

}else{
Get login User's session--Basic permission check, user not logged in, blocked or session timeout please login again
if (Utils.isnull (Req.getsession ()) | | Utils.isnull (Req.getsession (). getattribute ("user")) {
If it is the AJAX request response header will have, X-requested-with;
if (Req.getheader ("X-requested-with")! = null && req.getheader ("X-requested-with"). Equalsignorecase (" XMLHttpRequest "))
{
Rep.setheader ("Sessionstatus", "timeout");//setting session status in the response header
Rep.getwriter (). Print ("Login timed out!") "); Print a return value, no this line, in the tabs page can not jump out (the navigation bar to jump out), the specific reason is unclear
}
Return
}else {
Chain.dofilter (request, response);//Jump page

}
}

}
} ③JS Code Section

$.ajaxsetup ({
Error:function (XMLHttpRequest, Textstatus, Errorthrown) {
if (xmlhttprequest.status==403) {
$.messager.alert (' My message ', ' You do not have permission to access this resource or do this! ', ' success ');
return false;
}
},
Complete:function (xmlhttprequest,textstatus) {
var sessionstatus=xmlhttprequest.getresponseheader ("Sessionstatus"); Get the response head through XMLHttpRequest, Sessionstatus,
if (sessionstatus== ' timeout ') {
If the timeout is processed, specify the page to jump to
var top = Gettopwinow (); Gets the top-level window object of the current page
$.messager.alert (' My message ', ' Login timeout-please login again! ', ' info ');
Top.location.href = "http:/" +window.location.host+ "/crm_web/login_new.html"; Jump to landing page
}
}
});

/**
* Get top-level windows in any nested level window in the page
* @return The top-level window object of the current page
*/
function Gettopwinow () {
var p = window;
while (P! = p.parent) {
p = p.parent;
}
return p;
}

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JQuery Easyui Session Timeout returns to the login page