And what if there’s more than one servlet with a
When to use
If you have multiple servlets that you want preloaded, and you want to control the order in which they’re initialized, the value of
You can specify the listener in the web.xml.
What is load-on-startup As stated earlier load-on-startup is a tag element which appear inside
Only negative values are not garanteed: "[...]If the value is a positive integer or 0, the container must load and initialize the servlet as the application is deployed.[...]" –marabol May 5 Servlet Load On Startup Default Value You can pass positive and negative value for the servlet. Thanks in advance –Tarik Mar 24 '15 at 16:32 add a comment| up vote 6 down vote Servlet Life Cycle The lifecycle of a servlet is controlled by the container in it depends on container also. :d Jaikiran Pai Marshal Posts: 10447 227 I like...
That means it consumes more time at first request. and the x value difine the priority of the servet which instantiate first respectively Salil Vverma Ranch Hand Posts: 257 I like... Load-on-startup Tomcat share|improve this answer answered Dec 20 '11 at 9:48 Suresh Pradhan 91 Why are you repeating an already given answer? –BalusC Aug 4 '15 at 20:20 add a comment| Load-on-startup Default Value for example : in tomcat...
When web container started and while running, it loads the deployed web application, during this web container creates the servlet context object based on the information provided in web.xml file. weblink That means higher the value= lower the priority. by using load-on-startup you can simply tell J2EE container that load this servlet first and that one later you can also say that load this on deploy time loading means loaded Is Apple IPhone4S Siri going to replace the Google... 5 Example of kill command in UNIX and Linux Java TreeMap Tutorial: 10 Example of TreeMap in Ja... Servlet Load On Startup Not Working
Would you like to answer one of these unanswered questions instead? posted 13 years ago What Phil said, and I'll add that the invoker servlet doesn't properly follow the load-on-startup tags. You can do the following in the init() method: You can start any daemon threads (Spawn threadsare explicily forbidden by the J2EE standard. navigate here How to Start a service automatically when the tomcat starts?
But here the requirement is that as soon as the server starts, I need the LoadOnStartup Servlet's init() method to execute without waiting for any client request. To Declare Constants In Struts.xml Which Tag Is Used The optional contents of these element must be an integer indicating the order in which the servlet should be loaded. Checked vs Unchecked Exception in Java Example Observer design Pattern in Java with Real world co...
Difference between DOM and SAX Parsers in Java How to read and write Images in java using ImageIO... Is there a reason why similar or the same musical instruments would develop? Or it's merely an ordinary mistake? Servlet Init Method in case of web logic the server which is configured first will be given the first priority.
Other Scenarios where server creates the object for servlet. Vamsi Mohan Ranch Hand Posts: 80 posted 7 years ago If you give the value as "0" as load-on-startup, the servlet automatically started/initiated while startup without any user call. What is the difference between RequestDispatcher's forward method and HttpServletResponse's sendRedirect method? his comment is here It sounds like the public void init(ServletConfig c) is being called but your init() is not for some reason.
share|improve this answer edited Jan 11 '16 at 14:01 RO_engineer 14.7k117987 answered May 1 '09 at 7:16 sourcerebels 3,80412042 add a comment| up vote 1 down vote If value is same This is really amazing, there is no output (on the servlet container console window) - does this mean that LoadOnStartup servlet is not initialized? Please let me know if the same servlet will be initialised during server start up? You can also check my Struts interview questions and spring interview questions for more on J2EE interview.
Related Tutorials Difference between SendRedirect and Forward in Servlet? There may be differences share|improve this answer edited Apr 16 '15 at 23:34 answered May 1 '09 at 4:25 Eddie 38.9k1596129 Cletus is wrong in his answer. Why main method is public static in Java What is load-on-startup servlet element in web.xml... If the value is a negative integer, or the element is not present, the container is free to load the servlet whenever it chooses.
Apex schedulable jobs Why leave magical runes exposed? it depends on container also. This is suitable for servlets that don't need to perform special initialisation. Here is the excerpt from the web.xml for one of the servlets:
But even then I don't get to see the desired result. William Brogden Author and all-around good cowpoke Rancher Posts: 13078 6 posted 13 years ago You should put the LoadOnStartup class in a package - many odd things happen in Tomcat posted 7 years ago pooja jain wrote: Bear Bibeault wrote: Vamsi Mohan wrote:If you give the value as "0" as load-on-startup, the servlet automatically started/initiated while startup without any user call. Bill [ March 27, 2003: Message edited by: William Brogden ] Phil Chuang Ranch Hand Posts: 251 posted 13 years ago when you specify a servlet to load-on-startup, it calls
It offers two methods. Also when I activate the Servlet by typing the URL's in the address bar (http://localhost:8080/servlet/boot OR http://localhost:8080/servlet/LoadOnStartup), even then I don't get the desired output.
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