1. java installed 2. ./gradlew clean 3. ./gradlew build 4. ./gradlew bootRun    http://localhost:8080/greeting/getObject/MinhKiet/25/kietdk@gmail.com  http://localhost:8080/greeting/helloview http://localhost:8080/greeting/helloview?name=MinhKiet  http://localhost:8080/greeting/hellojson/JsonName