How to stop refreshing from increasing a session variable in a java servlet
0
So i'm keeping a count on some pictures a user can visit, i want to make sure though that if they click refresh it does not increase the number of counts for that picture. The below code is causing my server to crash, and respond back with an error code 500.
HttpSession session = request.getSession() ;
Integer counter = (Integer) session.getAttribute("counter");
String accCount = (String) session.getAttribute("attributeKey") ;
if (accCount == null) // New session?
response.sendRedirect("/techfore/WelcomePage");
if(counter == 0)
counter = new Integer(counter.intValue() + 1);
session.setAttribute("counter", counter);
java
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0
So i'm keeping a count on some pictures a user can visit, i want to make sure though that if they click refresh it does not increase the number of counts for that picture. The below code is causing my server to crash, and respond back with an error code 500.
HttpSession session = request.getSession() ;
Integer counter = (Integer) session.getAttribute("counter");
String accCount = (String) session.getAttribute("attributeKey") ;
if (accCount == null) // New session?
response.sendRedirect("/techfore/WelcomePage");
if(counter == 0)
counter = new Integer(counter.intValue() + 1);
session.setAttribute("counter", counter);
java
to test for a new session why not use docs.oracle.com/javaee/5/api/javax/servlet/http/…
– Scary Wombat
Nov 14 '18 at 1:06
Oh awesome. I never knew about that just started a course on java servlets so i'm a bit new to this.
– user10463530
Nov 14 '18 at 1:07
add a comment |
0
0
0
So i'm keeping a count on some pictures a user can visit, i want to make sure though that if they click refresh it does not increase the number of counts for that picture. The below code is causing my server to crash, and respond back with an error code 500.
HttpSession session = request.getSession() ;
Integer counter = (Integer) session.getAttribute("counter");
String accCount = (String) session.getAttribute("attributeKey") ;
if (accCount == null) // New session?
response.sendRedirect("/techfore/WelcomePage");
if(counter == 0)
counter = new Integer(counter.intValue() + 1);
session.setAttribute("counter", counter);
java
So i'm keeping a count on some pictures a user can visit, i want to make sure though that if they click refresh it does not increase the number of counts for that picture. The below code is causing my server to crash, and respond back with an error code 500.
HttpSession session = request.getSession() ;
Integer counter = (Integer) session.getAttribute("counter");
String accCount = (String) session.getAttribute("attributeKey") ;
if (accCount == null) // New session?
response.sendRedirect("/techfore/WelcomePage");
if(counter == 0)
counter = new Integer(counter.intValue() + 1);
session.setAttribute("counter", counter);
java
java
asked Nov 14 '18 at 1:03
user10463530
to test for a new session why not use docs.oracle.com/javaee/5/api/javax/servlet/http/…
– Scary Wombat
Nov 14 '18 at 1:06
Oh awesome. I never knew about that just started a course on java servlets so i'm a bit new to this.
– user10463530
Nov 14 '18 at 1:07
add a comment |
to test for a new session why not use docs.oracle.com/javaee/5/api/javax/servlet/http/…
– Scary Wombat
Nov 14 '18 at 1:06
Oh awesome. I never knew about that just started a course on java servlets so i'm a bit new to this.
– user10463530
Nov 14 '18 at 1:07
to test for a new session why not use docs.oracle.com/javaee/5/api/javax/servlet/http/…
– Scary Wombat
Nov 14 '18 at 1:06
to test for a new session why not use docs.oracle.com/javaee/5/api/javax/servlet/http/…
– Scary Wombat
Nov 14 '18 at 1:06
Oh awesome. I never knew about that just started a course on java servlets so i'm a bit new to this.
– user10463530
Nov 14 '18 at 1:07
Oh awesome. I never knew about that just started a course on java servlets so i'm a bit new to this.
– user10463530
Nov 14 '18 at 1:07
add a comment |
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to test for a new session why not use docs.oracle.com/javaee/5/api/javax/servlet/http/…
– Scary Wombat
Nov 14 '18 at 1:06
Oh awesome. I never knew about that just started a course on java servlets so i'm a bit new to this.
– user10463530
Nov 14 '18 at 1:07