4.0.0 hello hello-spring 1.0-SNAPSHOT org.springframework.boot spring-boot-starter-parent 2.3.1.RELEASE 11 11 UTF-8 42.3.3 org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-data-jpa org.springframework.boot spring-boot-starter-data-mongodb org.springframework.boot spring-boot-starter-jdbc org.springframework.boot spring-boot-starter-mustache org.postgresql postgresql ${postgresql.version} org.springframework.boot spring-boot-maven-plugin org.apache.maven.plugins maven-compiler-plugin 3.8.1 false