Every time you modify thymeleaf's templates, you need to restart spring boot. Although spring boot has a good startup speed, it is still very troublesome. Google has usedspring-boot-devtoolsto achieve hot plugging.

Mypom.xmljoined:

  org.springframework.boot spring-boot-devtools 1.3.0.RELEASE true 

But this still has no effect, but I usemvn spring-boot:runAfter starting, after modifying thymeleaf's templates, I must restart to update the templates. At the same time, I have setBuild project automaticallyinintellij-idea.

What is the reason why hot swapping is invalid?