4.0.0 com.datang com.datang.pet 1.0 com.datang.pet.common com.datang.pet.pojo com.datang.pet.vo com.datang.pet.mapper com.datang.pet.service com.datang.pet.api pom pet org.springframework.boot spring-boot-starter-parent 2.1.5.RELEASE UTF-8 UTF-8 1.8