spring boot jpa

事务：@Transactional

数据库配置：

spring:
  datasource:
    url: jdbc:mysql://192.168.1.105/spring
    data-username: root
    data-password:
    driver-class-name: com.mysql.jdbc.Driver
  jpa:
    hibernate:
      ddl-auto: create
      #开发能看到sql语句
      show-sql: true