title: How to change project mapping in Spring Boot Application?
body: <p>I'm working on a Spring rest project with Spring Boot. I follow this instructions <a href="https://spring.io/guides/gs/rest-service/" rel="nofollow">https://spring.io/guides/gs/rest-service/</a>. 
  When I run the project, project is working on localhost:8080 as described in the tutorial. But I wanna run this project on localhost:8080/ProjectName. How can I change the project mapping?</p>