Programming Forums > Application Development > Java

cairo · May 30th, 2007, 10:24 AM

why every time i want to run my program again i need to refresh my apache server(compile java servlets )? if i didn't do that it will cause me these errors

Quote:

java.lang.NullPointerException
coreservlets.Database.doGet(Database.java:79)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:419)
org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)

any one can tell me whats going on ?
should i show my code as well ?

msi_333 · May 30th, 2007, 12:04 PM

If u using tomcat server , you should do that

cairo · May 30th, 2007, 12:34 PM

yes i am, do u mean that i need to refresh the apache each time i run the program ?
is quite troublesome for me

msi_333 · May 30th, 2007, 12:46 PM

Quote:

Originally Posted by cairo

yes i am, do u mean that i need to refresh the apache each time i run the program ?
is quite troublesome for me

No , Not every time you run a program , But u refresh i when u make a change in a code and you want to see the changes ,

msi_333 · May 30th, 2007, 5:08 PM

You Can Use NetBeans IDE and it will make 90% easier to u , Because it contain Tomcat sever built in , so u don't have to refresh the server any more ,when i started JSP application i was doing like u , but after some days i turned to NetBeans :p

cairo · May 31st, 2007, 1:05 AM

Quote:

Originally Posted by msi_333

No , Not every time you run a program , But u refresh i when u make a change in a code and you want to see the changes ,

i know what u mean, but the fact is although i didn't change my program, i still need to refresh the apache tomcat to run the program again, am i missing something ?

May 30th, 2007, 12:04 PM	#2
msi_333 Newbie Join Date: May 2007 Location: Egypt Posts: 19 Rep Power: 0	Yeah If u using tomcat server , you should do that __________________ Don't walk in front of me, I may not follow. Don't walk behind me, I may not lead. Just walk beside me and be my friend

May 30th, 2007, 5:08 PM	#5
msi_333 Newbie Join Date: May 2007 Location: Egypt Posts: 19 Rep Power: 0	You Can You Can Use NetBeans IDE and it will make 90% easier to u , Because it contain Tomcat sever built in , so u don't have to refresh the server any more ,when i started JSP application i was doing like u , but after some days i turned to NetBeans :p __________________ Don't walk in front of me, I may not follow. Don't walk behind me, I may not lead. Just walk beside me and be my friend

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

May 30th, 2007, 12:34 PM	#3
cairo Newbie Join Date: Dec 2005 Posts: 18 Rep Power: 0	yes i am, do u mean that i need to refresh the apache each time i run the program ? is quite troublesome for me

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Programming Forums > Application Development > Java

jsp and java servlet