準備 <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.3.RELEASE</version> </parent> <properties> <java.version>10.0</java.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> </dependencies>