In order to dispose of a session that is no longer needed, you can call the invalidate() method of the HttpServlet class. Assuming you have an instance of HttpServlet called 'session' you would do this: session.invalidate();
setMaxInactiveInterval() method
No, the scientific method can be uncontrolled to for it to be valid.
<?php // start session session_start(); // Assign value to session $user = $_SESSION['variable_name']; // variable_name = value to store in session // To reset session variable use below method unset($user); // If you want to destroy all session variables use below method session_destroy(); // destroys all session variables ?>
session.invalidate()
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The Servlet Session API refers to the documentation on the list of methods available in the HttpSession class that is used for Session ManagementThe HttpSession object is very powerful and has many features. Before we dig deep into the world of Sessions, let us take a look at the important methods they have so that we can use them effectively.• getAttribute(java.lang.String name) - Returns an Object associated with that name that was stored in the session object.• getAttributeNames() - Returns an Enumeration object that lists the names of the objects stored in the session object.• getCreationTime() - Returns a long containing the date stamp of creation.• getId() - Returns the id of the session as a String representing the unique identifier assigned to this session.• getLastAccessedTime() - Returns a long containing the date stamp of the last time the session was accessed.• getMaxInactiveInterval() - Returns an integer representing the maximum time interval, in seconds, that the servlet container will keep this session open between client accesses.• invalidate() - This destroys a session. It can't be referenced after this method has been called.• isNew() - This tells you whether the client knows about the session. In other words, the has session been created by the server, but the client hasn't acknowledged receiving the session ID yet.• removeAttribute(java.lang.String name) - This removes an attribute. It deletes it from the session object.• setAttribute(java.lang.String name, java.lang.Object value) - You use this method to add objects to a session.• setMaxInactiveInterval(int interval) - Specifies the time, in seconds, between client requests before the servlet container will invalidate this session.• getValue(java.lang.String name) - Returns an Object associated with that name that was stored in the session object. As of Version 2.2, this method is replaced by getAttribute(). The getAttribute() method will be on the exam, not this one, but it is here for completeness.• getValueNames() - Returns a String array with a list of names associated with the objects added to a given session. As of Version 2.2, this method is replaced by getAttributeNames(). The getAttributeNames() method will be on the exam, not this one, but it is here for completeness.• putValue(java.lang.String name, java.lang.Object value) - You use this method to add objects to a session. This has been deprecated. As of Version 2.2, this method is replaced by setAttribute(java.lang.String, java.lang.Object). The setAttribute() method will be on the exam, not this one, but it is here for completeness.• removeValue(java.lang.String name) - This removes a value, but retains an attribute name in the session. The name is valid but the object is null. This has been deprecated. As of Version 2.2, this method is replaced by removeAttribute(). The removeAttribute() method will be on the exam, not this one, but it is here for completeness.
Allan mangubat is the answer
to make sure its valid
Let's We understand ,how to deal with the "String encodeURL(String URL)" method in "HttpResponse" Interface , We can call this method by taking response reference variable , So here encode method is a method which will search the session object and gets the session id from it and finally it will append or add this session id to the URL address which we are passing to this method at the time of calling it (i,e response.encodeURL("/anyurladdress") ). As the return type of this method is a String ,so it is going to return a String value (i,e "anyurladress + session ID" ). Once we receive this "URL+sessionID" we can use it , when we are sending the second request from the same client . So server or container can recognize whether the client is already an existing one or the new one based on the session ID which we are sending along with the URL address. Thanq N.chadandan Kumar chandu_style007@yahoo.co.in
I use the session .... Session["var"] = some value or object. Then you can call that variable any time for the users Session. EDIT: Make a public static variable outside of a method and just in the Class.
Developing a plan
Developing a plan