Spring Framework does not required sever. Is it true?

Question

I read in spring tutorial in advantages section point no. 3. Spring Framework does not required server . Is it true ?

how can we run web application without any server?

Answer 1

Yes. You can run a standalone spring application.

Your main class will be the entrypoint, you can load the bean definitions using ClassPathXmlApplicationContext. E.g.

public static void main() {
   ApplicationContext ctx = new ClassPathXmlApplicationContext("ctx.xml");
   YourService service = ctx.getBean(YourService.class)
   service.doSomething();
}

Then everything in doSomething() can use dependency injection.

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Update: Since you seem to need to run a webapp without a web server - you can't. You need a servlet container (which would be a 'web server' here). What you can do is use an embedded web server like jetty or tomcat-embedded and launch the process from a standalone app.

If by "web server" you mean a remote physical (or virtual machine) - you don't need it - you can install tomcat locally on your machine and run the application.