sql

datasource:  driver-class-name: com.mysql.jdbc.Driver  url: jdbc:mysql://127.0.0.1:3306/dbgirl  username: root  password: rootjpa:  hibernate:    ddl-auto: create
  show-sql: true
jpa映射数据库
@Entitypublic class Girl {    @Id    @GeneratedValue    private Integer id;    private String name;    private Integer age;    public Girl() {    }
ddl-auto: create)(每次都创建)/update(创建或者更新)