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How can I use Spring Security without sessions?
...ication.logout.LogoutFilter">
<constructor-arg value="/login.jsp"/>
<constructor-arg>
<list>
<bean class="org.springframework.security.web.authentication.logout.SecurityContextLogoutHandler"/>
</list>
&l...
java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has
...n't write to the response in the servlet. That's the responsibility of the JSP. You just set a request attribute like so request.setAttribute("data", "some string") and then print it in JSP like so ${data}. See also our Servlets wiki page to learn how to use Servlets the right way.
Another probable...
Throwing cats out of windows
...rvive a fall out of a low story window, but will die if thrown from a high floor. How can you figure out the longest drop that the cat can survive, using the least number of attempts?
...
What is the need of JSF, when UI can be achieved with JavaScript libraries such as jQuery and Angula
...
JSF to plain JSP/Servlet/HTML/CSS/JS is like as jQuery to plain JS: do more with less code. To take PrimeFaces (jQuery + jQuery UI based) as an example, browse through its showcase to see complete code examples. BootsFaces (jQuery + Boots...
Difference between web server, web container and application server
...tainer or Servlet Engine : is used to manage the components like Servlets, JSP. It is a part of the web server.
Web Server or HTTP Server: A server which is capable of handling HTTP requests, sent by a client and respond back with a HTTP response.
Application Server or App Server: can handle all a...
Tomcat: How to find out running tomcat version
...
if you can upload a JSP file you may print out some info like in this example: bestdesigns.co.in/blog/check-jsp-tomcat-version
Save this code into a file called tomcat_version.jsp:
Tomcat Version : <%= application.getServerInfo() %>&...
Modelling an elevator using Object-Oriented Analysis and Design [closed]
...evator class. It has a direction (up, down, stand, maintenance), a current floor and a list of floor requests sorted in the direction. It receives request from this elevator.
Then there is a bank. It contains the elevators and receives the requests from the floors. These are scheduled to all active...
quick random row selection in Postgres
...ght want to experiment with OFFSET, as in
SELECT myid FROM mytable OFFSET floor(random()*N) LIMIT 1;
The N is the number of rows in mytable. You may need to first do a SELECT COUNT(*) to figure out the value of N.
Update (by Antony Hatchkins)
You must use floor here:
SELECT myid FROM mytable OF...
What is the “double tilde” (~~) operator in JavaScript? [duplicate]
...a double NOT bitwise operator.
It is used as a faster substitute for Math.floor().
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Difference between / and /* in servlet mapping url pattern
...vlets provided by the servletcontainer such as the default servlet and the JSP servlet. Whatever request you fire, it will end up in that servlet. This is thus a bad URL pattern for servlets. Usually, you'd like to use /* on a Filter only. It is able to let the request continue to any of the servlet...