Spring boot is a lightweight, loosely coupled integrated framework to ease the web application development. It is the overcome of Spring framework, As we know, in spring we have to do lot of configuration like beanxml, server configuration but in Spring Boot all will be done by its framework. We don't have to care about bean initialization and embedded server is provided. Spring Boot is Ready-to-go web application development as it has a default configuration file namely application.properties where we can put all the configurations like log, database, server port, jpa, hibernatedialect etc.