Go to http://start.spring.io/, create your project template like below
Download Generate Project and get project structure like this. 
Add settings in the application.properties file
server.port=9090 # Datasources # default, if not defined use this one spring.datasource.url=jdbc:mysql://localhost:3306/test spring.datasource.username=test spring.datasource.password=test spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.testWhileIdle=true spring.datasource.validationQuery=SELECT 1 mvn clean install -Dmaven.skip.test=true java -jar target/springboot-mybatis-demo-0.0.1-SNAPSHOT.jar springboot-mybatis-demo\src\main\resources\mysql.sql http://localhost:9090/rest/grades
[{"studentName":"Simon","subjectName":"History","grade":"A"},{"studentName":"Elenor","subjectName":"History","grade":"B+"},{"studentName":"Simon","subjectName":"Biology","grade":"B"},{"studentName":"Stu","subjectName":"Biology","grade":"F"},{"studentName":"Alvin","subjectName":"SF","grade":"C"},{"studentName":"Theo","subjectName":"SF","grade":"B"},{"studentName":"Stu","subjectName":"SF","grade":"C+"}]