Spring Boot Controller not mapping

Question

I have used STS and now I am using IntelliJ Ultimate Edition but I am still getting the same output. My controller is not getting mapped thus showing 404 error. I am completely

Answer 1

It depends on a couple of properties:

• server.contextPath property in application properties. If it's set to any value then you need to append that in your request url. If there is no such property then add this line in application.properties server.contextPath=/
• method property in @RequestMapping, there does not seem to be any value and hence, as per documentation, it should map to all the methods. However, if you want it to listen to any particular method then you can set it to let's say method = HttpMethod.GET

Answer 2

Because of DemoApplication.class and HelloController.class in the same package
Locate your main application class in a root package above other classes
Take look at Spring Boot documentation Locating the Main Application Class

Using a root package also allows component scan to apply only on your project.

For example, in your case it looks like below:

com.webservice.demo.DemoApplication
com.webservice.demo.controller.HelloController

Answer 3

In my case I used wrong port for test request - Tomcat was started with several ones exposed (including one for monitoring /actuator).