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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 Management
The 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.
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Why you use session in hibernate?
Hi its me Riaz Molwani : Session is a bessically class of hibernate API which provide the interface between the presistent data objects store and the application . .
What is session in jsp?
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What is servlet and why it is used?
servlet is a small program which run on serverside,and it can not be downloaded at client side. java servlets dynamically extends the functionalities of a web server. main use is: session tracking: no of users (unique) visited u'r website. in order to use cookies..
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What is difference between single threaded servlet and multi threaded servlet?
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