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Tomcat Load-on-startup


If you don't want to miss future posts, make sure to subscribe. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Changes made to the deployment descriptor are : servlet> boot practice.LoadOnStartup 1 Regards, Kunal Jaggi SCJP2 William Brogden Author and all-around good cowpoke Rancher Posts: For more information on how to implement a ServletContextListener, see here for an excellent example. his comment is here

Now, you can go go to tomcat/apache-tomcat-7.0.41/bin and execute ./startup.sh. What is a non-vulgar synonym for this swear word meaning "an enormous amount"? Try the above line and see if that works for you. To execute a program, you have to use Servlet and Servlet should define in deployment descriptor web.xml file under WEB-INF folder. http://stackoverflow.com/questions/6206996/tomcat-java-servlet-initialize-class-on-application-startup

Tomcat Load-on-startup

You don't have to call it from the web, it should load right after you turn tomcat on. Interview for postdoc position via Skype Custom ColorFunction for GeoGraphics plot with ReliefMap Are people of Nordic Nations "happier, healthier" with "a higher standard of living overall than Americans"? How to make use of Devel debugging functions on large or complex objects Cost effective drivetrain maintanance Circular Array Rotation What does the expression 'seven for seven thirty ' mean?

  • Which sounds like what you wanting to do.
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  • Right now what I've been doing is, everytime there is an upgrade to the application, I drop the war into the right directory, then I have to "login" to the application
  • Any ideas?
  • What I need is for the servlet's "init" method to be called as soon as the war is deployed.

This will be invoked before any of the filters and servlets are initialized. The fact that it doesn't points to a deeper problem, then. Have a suggestion on article? How To Run Java Program In Tomcat Thanks –Antoine Claval Jan 12 '10 at 16:00 add a comment| up vote 3 down vote Use the load-on-startup in WEB-INF/web.xml.

asked 8 years ago viewed 27591 times active 3 months ago Linked 7 Run a method only at Spring Application Context startup? 4 main class of a tomcat web application 3 How To Run Java Program Automatically On Tomcat Startup How does changing metrics help to find solutions to a partial differential equation? More specifically you could start your thread in the contextInitialized method: import javax.servlet.ServletContextEvent; import javax.servlet.ServletContextListener; public class MyListener implements ServletContextListener { public void contextInitialized(ServletContextEvent sce) { // start the thread } http://stackoverflow.com/questions/3289737/load-on-startup-tomcat asked 2 years ago viewed 665 times active 2 years ago Related 2How can I send a file to the browser using Scalatra?3Tomcat - Servlet init() called twice upon startup3Scalatra Servlet

Changing thickness of outline in QGIS more hot questions question feed lang-java about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Servlet Load On Startup Not Working sending emails, sending newsletters, starting scheduler, etc.. Is it possible to initialize this class on application startup, then access its methods as pages are being served up? Note: We're on Scalatra 2.2.2.

How To Run Java Program Automatically On Tomcat Startup

tomcat scalatra share|improve this question asked Jan 14 '14 at 23:36 David Moles 13.6k1283143 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote accepted EDIT: this http://stackoverflow.com/questions/785769/tomcat-auto-start-servlet It's very easy to use, and it's entire reason for existing is to schedule jobs. Tomcat Load-on-startup I assume that Jetty was treating all servlets as load-on-startup, whereas Tomcat isn't, unless you explicitly tell it to in the web.xml. Load On Startup Servlet Example Did Joseph Smith “translate the Book of Mormon”?

I would like for the servlet's init method to be called as soon as the war is updated so that I don't have to login to the GWT application to do this content Detect ASCII-art windows made of M and S characters how to stop muting nearby strings or will my fingers reshape after some practice? That's just a guess tho. The best way in my opinion. Tomcat Run Class On Startup

Why are copper cables round? You're guaranteed that it is launched exactly once at the start of your web application prior to accepting requests and exactly once at the end (assuming there are no serious errors). I'm just worried about the implications of doing heavy work in servlet init since maybe it wasn't meant to be used that way. http://3swindows.com/on-startup/5-beeps-on-startup-hp.html If you want to wait for these threads to finish, then start them and use Thread.join to wait until their completion so that you don't start accepting requests until they finish.

more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Science Servlet Load On Startup Annotation This will be invoked after all the servlets and filters have been destroyed. Detect MS Windows What is the best way to attach backing on a quilt with irregular pattern?

Why are copper cables round?

Over 14 million readers Get fresh content from Crunchify Top Tech Tutorials Simplest Hello World Spring MVC Tutorial and JDBC MySQL Tutorial NEW Start Embedded HTTP Jersey server during Java Application 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 What do you call this alternating melodic pattern? How To Run Java Program In Apache Tomcat Server java tomcat classloader share|improve this question asked Jun 1 '11 at 20:05 Petey B 4,766165992 Related: stackoverflow.com/questions/3468150/using-init-servlet, stackoverflow.com/questions/3153739/…, stackoverflow.com/questions/5951294/…, etc –BalusC Jun 1 '11 at 20:19 add a comment|

or should a separate web app be the solution? –Simon Reeves Jun 12 '13 at 6:15 @SimonReeves No, I suppose if you used load-on-startup, then the work could begin Enter your email address... Word for disproportionate punishment? http://3swindows.com/on-startup/el-capitan-startup-items.html When tomcat starts, all Servlet loads in web container and init method of Servlet loaded first.

add a comment| 3 Answers 3 active oldest votes up vote 16 down vote accepted you could use the servlet context listener. Are the guns on a fighter jet fixed or can they be aimed? share|improve this answer answered Jun 1 '11 at 20:09 Tomasz Nurkiewicz 212k31488525 yeeessss! Detailed Example Attached WordPress, Yoast SEO and Google Sitelinks Searchbox How to Add HTML Title Attribute to All WordPress Images Automatically For Mouse Hover Tooltip?

share|improve this answer answered Jun 11 '13 at 11:14 Neil 4,4051331 Thank you Neil for reply. Here is a way to do this programmatically using a LifeCycle: def mountServlet(sc: ServletContext, servlet: HttpServlet, urlPattern: String, loadOnStartup: Int = 1) { val name = servlet.getClass.getName val reg = Option(sc.getServletRegistration(name)) At that point, you have two methods you must implement: contextInitialized and contextDestroyed. The reason for shutting down a particular servlet is because configuration data is changed fairly frequently and read upon servlet startup in servlet.init() - which is not needed by other servlets.

Not the answer you're looking for? The element content of this element must be an integer indicating the order in which the servlet should be loaded.In other words, container loads the servlets in ascending integer value. Join them; it only takes a minute: Sign up Tomcat Java Servlet - Initialize Class on Application Startup up vote 7 down vote favorite 3 I have a class that takes Changing thickness of outline in QGIS Compiling multiple LaTeX files Why do the physical properties of an egg shell change when the egg shell is exposed to vinegar for a week?

share|improve this answer edited Feb 8 '14 at 20:37 answered Jan 26 '14 at 22:03 Stefan Ollinger 1,434616 add a comment| Your Answer draft saved draft discarded Sign up or more hot questions question feed default about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Preserving Vertices Why doesn't my piece of code work? I'm using Tomcat Related 10Classloader behaviour on Tomcat with multiple applications3Singletons and class loaders in Tomcat web applications2Tomcat class-reloading for JSPs3Too many classes loaded when application is deployed on tomcat5Tomcat 7.0.29

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