• Spring Boot Session Time Out Redirect To Login Page Account
• Spring Boot Session Timeout Redirect To Login Page Example

Hi I am developer in .NET but I need to access session object in client side and redirect the page to login. i am using the following code snippet but I am unable to achieve the target.

I am getting

I am pretty new to spring, have set session timeout of 1 minute in the web.xml. I need to display the login page once session is timed out and user clicks any link in the application. There is my configuration: web.xml. Configuring expired session redirect Fortunately, there is a simple method for directing users to a friendly page (typically the login page) when they are flagged by concurrent session control—simply specify the expired-url attribute and set it to a valid page in your application. Finally, Spring redirects the user to a new page (which by default is /login?logout). Other than removing any ID and access tokens from your application’s session, nothing OAuth 2.0/OIDC.

this condition as always true whether the session has expired or not.

Is there any way to check that the session has expired or not.

Any help will be appreciated.

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You want to use the following...

Now for as to why you would want to do this is beyond me? If you can check this when the page is being processed on the server you can simply force a …

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You want to use the following...

Now for as to why you would want to do this is beyond me? If you can check this when the page is being processed on the server you can simply force a redirect like the following...

But i'm assuming this is also not what your after. If you want to check the users session is valid repeatedly e.g every 30 seconds then neither of those methods will work.

The reason being is that once the server has sent the page to the user the session check is calculated and hard-coded into the JavaScript. It will NOT be re-assessed everytime you call the javascript method as it is static.

To perform this you will need two steps, the first is to setup a page to return a flag indicating whether a users session is valid and secondly perform an asynchronous request to fetch the users session state.

First of all create a page e.g. SessionCheck.aspx and add the following...

Secondly add the following script to your existing page...

The above snippets will make a request to the SessionCheck.aspx page, which in turn returns a small parcel of JSON which once the script receives this, evals it into a javascript object so we can access the flag 'valid' which will be true or false depending on whether the user is logged in.

Hope it helps.

In this article I am going to show you how to prevent user going back to the login page if a user is already logged in or redirect a user to the login page if the user is not already logged in.

When browser caches the resources then clicking on the browser’s back button will take a user to the login page again and it gives bad experience to the users.

Even if the user presses the browser’s back button it will take him/her to the login page if the user is not already logged in otherwise it will take the user to the logged in home page or dashboard page.

Prerequisites

Knowledge of web application, Java, Servlet

So here I am going to give you the code snippets to prevent it and for this I am going to write a servlet filter.

Related Posts:

Servlet Filter

I am going to write the below servlet filter class to prevent user going back to the login page.

In the above Servlet Filter I am retrieving a Login object and checking for null and redirecting user to the appropriate page. A Login object is a simple POJO class that holds login information like username, email etc.

Web pages such as login.jsp, home.jsp etc. are kept into webapp/pages/ directory of the web application.

So using Servlet Filter you are easing your checking task to automatically redirect a user to the home page.

Deployment Descriptor – web.xml

Spring Boot Session Time Out Redirect To Login Page Account

I have put the required servlet filter entry into the deployment descriptor file – web.xml. I have also configured URL pattern, session timeout, welcome page for the application.

If you don’t want to use web.xml you can use annotation on Servlet Filter as shown in the following example.

Spring Boot Session Timeout Redirect To Login Page Example

Thanks for reading.