If the client comes back with no cookie, then the server needs to continue to use jsessionid rewriting in url. But nowdays it's really hard to imagine clients/users without cookie support.
Subsequently, This isn't a bug, it's by design. When a new session is created, the server isn't sure if the client supports cookies or not, and so it generates a cookie as well as the jsessionid on the URL. Thereof, If the cookies are disabled at client side and we are using URL rewriting then this method uses the jsessionid value from the request URL to find the corresponding session. JSESSIONID cookie is used for session tracking, so we should not use it for our application purposes to avoid any session related issues. In fact, When a new session is created, the server isn't sure if the client supports cookies or not, and so it generates a cookie as well as the jsessionid on the URL. When the client comes back the second time, and presents the cookie, the server knows the jsessionid isn't necessary, and drops it for the rest of the session. Indeed, When a web crawler tries to index your website, it will send a request without a session identifier (naturally). Your servlet container will reply with a page containing rewritten URLs with a jsessionidpath parameter. It will also send the session cookie, but web crawlers ignore cookies.
20 Similar Question Found
What happens if there is no jsessionid rewriting?
If the client comes back with no cookie, then the server needs to continue to use jsessionid rewriting. You may not explicitly use cookies, but you do implicitly have a session, and the container needs to track that session.
Which is more morally dubious rewriting or rewriting?
The third service – “rewriting” – was rather more morally suspect, and was one of the most ethically dubious practices I’ve ever engaged in (I suppose I should get out more).
When to invalidate the jsessionid on the server?
The JSESSIONID will be invalidated on the server only after some inactivity of the client. The default values for these properties are located in %DLC%\servers omcat\conf\web.xml . If you need to timeout the session irrespective of the inactivity time (like a maximum session lifetime), then consider invalidating the session on the AppServer.
How to get the jsessionid cookie in appserver?
It is possible to get the session's JSESSIONID cookie by reading the following property from within an AppServer procedure: If you are using AppServer Single Sign-On (SSO), then you you can also track the user login sessions by using Client-Principal:Session-ID.
When does the server drop the jsessionid?
When a new session is created, the server isn't sure if the client supports cookies or not, and so it generates a cookie as well as the jsessionid on the URL. When the client comes back the second time, and presents the cookie, the server knows the jsessionid isn't necessary, and drops it for the rest of the session.
How to disable jsessionid in web.xml?
On Tomcat 7 or any servlet specification v3 compliant server you can disable jsessionid in URL by adding following to the web.xml of your application Here's a nasty workaround in flavor of a Filter so that you will never see the jsessionid in URL whenever the client supports cookies.
Why is the jsessionid generated in all urls?
This isn't a bug, it's by design. When a new session is created, the server isn't sure if the client supports cookies or not, and so it generates a cookie as well as the jsessionid on the URL.
When do i use jsessionid instead of cookies?
I've read some time ago that jsessionid is an alternative to cookies if cookies are disabled, but cookies are enabled and I actually don't use cookies. This isn't a bug, it's by design. When a new session is created, the server isn't sure if the client supports cookies or not, and so it generates a cookie as well as the jsessionid on the URL.
When is a jsessionid cookie created in java?
JSESSIONID cookie is created/sent when session is created. Session is created when your code calls request.getSession () or request.getSession (true) for the first time. If you just want to get the session, but not create it if it doesn't exist, use request.getSession (false) -- this will return you a session or null.
Why does java drop jsessionid in url-dzone java?
This isn't a bug, whenever a new session is created, the server isn't sure if the client supports cookies or not, and it generates a cookie as well as the jsessionid on the URL. When the client comes back the second time, and presents the cookie, the server knows the jsessionid isn't necessary, and drops it.
What does a jsessionid cookie look like in java?
For example, in a Java web app, by default, it’s called JSESSIONID. It looks something like this: By using this cookie, only your web server is able to identify who the user is and it will provide content accordingly. And this cookie looks great. No sensitive information in the cookie, just the random ID (non-guessable).
What is jsessionid in j2ee web application?
If a Web server is using a cookie for session management it creates and sends JSESSIONID cookie to the client and then the client sends it back to the server in subsequent HTTP requests. JSESSIONID and session management is not only a popular Servlet interview question but also appear in various JSP interviews.
How to use secure jsessionid cookie over http?
E.g. I added this snippet to web.xml and it marks session cookie as secure even when reverse proxy contacts tomcat over plain HTTP. Another approach, similar to Mark's, would be to use the SessionCookieConfig, but set it in a context listener from JNDI configuration:
How to properly set jsessionid cookie path behind?
My web app looks at the request.getHeader ("x-forwarded-host") header to know that it is behind a reverse proxy. When it detects this (dynamically) it builds URLs without the servlet path on them. This works fine for everything except for the JSESSIONID cookie.
Why do i have jsessionid in my url?
Security is a major concern for our customers, and JSESSIONIDs appearing in the URLs freak them out (especially when they demonstrate that you can get a URL from the app, email it to someone else, and have that person magically bypass authentication and assume the role of the other user - of course as long as the session is still valid).
Why do i need jsessionid parameter in tomcat 6?
In fact when you block sites from setting any data inside your browser, Tomcat 6 rewrites the URL and add a JSESSIONID parameter in it. URL session IDs are sensible informations that shouldn't be transmitted via GET method for security concerns. It may also have a bad impact on SEO.
What's the difference between jsessionid and secure cookies?
By default, the JSESSIONID cookie is never secure, but the _WL_AUTHCOOKIE_JSESSIONID cookie is always secure. A secure cookie is only sent when an encrypted communication channel is in use. Assuming a standard HTTPS login (HTTPS is an encrypted HTTP connection), your browser gets both cookies.
How to enable the secure flag on the jsessionid?
The Secure flag on the JSESSIONID is not enabled by default. To add the Secure flag to the JSESSIONID, make sure the option "Restrict cookies to HTTPS sessions" is selected. In the administrative console: click on Application servers > servername > Session management > Enable cookies
What does jsessionid mean in java web app?
For example, in a Java web app, by default, it’s called JSESSIONID. It looks something like this: By using this cookie, only your web server is able to identify who the user is and it will provide content accordingly.
How is jsessionid set in sap netweaver java?
When initially accessing a SAP NetWeaver Java -based application, JSESSIONID would be set on the client side (e.g.in a cookie): This session identifier would be then used to reference the user state on the server side.
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