Click here to hide categories Click here to show left categories

User: Home          welcome : Guest          Log In / Register here     




Java Training: - How will you explain Page directives?

Page directive is used to define page attributes the JSP file. Below is a sample of the same:-

To summarize some of the important page attributes:-

Import: - Comma separated list of packages or classes, just like import statements in usual Java code.

Session: - Specifies whether this page can use HTTP session. If set "true" session (which refers to the javax.servlet.http.HttpSession) is available and can be used to access the current/new session for the page.

If "false", the page does not participate in a session and the implicit session object is unavailable.

buffer :- If a buffer size is specified (such as "50kb") then output is buffered with a buffer size not less than that value.

isThreadSafe :- Defines the level of thread safety implemented in the page. If set "true" the JSP engine may send multiple client requests to the page at the same time. If "false" then the JSP engine queues up client requests sent to the page for processing, and processes them one request at a time, in the order they were received. This is the same as implementing the javax.servlet.SingleThreadModel interface in a servlet.

errorPage: - Defines a URL to another JSP page, which is invoked if an unchecked runtime exception is thrown. The page implementation catches the instance of the Throwable object and passes it to the error page processing.

See the following video on overview Service Loader in Java: -

Click to get Java Training

Regards,

Get more Java training stuffs from author's blog

Share this article   |    Print    |    Article read by 2559 times
Author:
Shivprasad Koirala
We conduct training for Java/J2EE technologies like design patterns, J2EE, Struts, Hibernate, Spring, Rich Interface etc. and likes to write articles on the same in free time.
Related Articles: No related article
Related Interview Questions: