在SpringBoot中使用hibernate

1.首先进行application.yml 的配置

spring:
  datasource:
    type: com.zaxxer.hikari.HikariDataSource
    url: jdbc:mysql://localhost/test?serverTimezone=UTC&characterEncoding=utf-8
    username: root

    driver-class-name: com.mysql.cj.jdbc.Driver
    hikari:
      minimum-idle: 3
      idle-timeout: 100000
  jpa:
    show-sql: true
    hibernate:
      ddl-auto: update

2.对domin的类进行配置

@Entity(name = "countries")
/*配置json，注意设立自增长后需要单独加入注解
  @GeneratedValue(strategy=GenerationType.AUTO)*/
@JsonIgnoreProperties(value = {"hibernateLazyInitializer","handler"})
public class Countries {
    @Id
    @Column(name = "country_id")
    private Integer countryId;
    @Column(name = "country_name")
    private String countryName;
    @Column(name = "region_id")
    private Integer regionId;

3.对Mapper进行配置

@Repository
public interface CountryDao  extends JpaRepository<Countries,Integer> {

}
//分页
@Repository
public interface MerchantsDao extends PagingAndSortingRepository<Merchants,Integer> {
    Page<Merchants> findByMerchantsName(String name, Pageable pageable);
}