SpringBoot+Spring Data Jpa的简单使用

1.pom.xml添加依赖

   org.springframework.boot
   spring-boot-starter-data-jpa

2.配置文件配置

spring:
  #配置spring data jpa
  jpa:
    hibernate:
      ddl-auto: validate
    #显示sql
    show-sql: true
    #连接的数据库类型
    database: oracle

 

3.实体类

@Getter
@Setter
@ToString
@ApiModel(value = "User", description = "用户信息")
@Entity
@Table(name = "SYS_USER")
public class User extends BaseDomain implements Serializable {

   private static final long serialVersionUID = -3361134827184862067L;
   
   @ApiModelProperty(value = "Id")
   @Id
   @Column(name = "ID")
   @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "USER_SEQUENCE")
   @SequenceGenerator(name = "USER_SEQUENCE", sequenceName = "USER_SEQUENCE")
   private Integer id;
   
   @ApiModelProperty(value = "用户名")
   @Column(name = "USERNAME",columnDefinition = "nvarchar2")
    private String userName;
    
    @JsonIgnore
    @ApiModelProperty(value = "密码")
   @Column(name = "PASSWORD",columnDefinition = "nvarchar2")
    private String password;

    @ApiModelProperty(value = "登录名")
   @Column(name = "LOGINNAME",columnDefinition = "nvarchar2")
    private String loginName;
    
    @Resource
   @OneToOne(cascade = CascadeType.ALL)
   @JoinColumn(name = "ROLEID", referencedColumnName = "ID")
    @ApiModelProperty(value = "角色")
    private Role role;

}

 

@Getter
@Setter
@ApiModel(value = "Role", description = "角色信息")
@Entity
@Table(name = "SYS_ROLE")
public class Role extends BaseDomain implements Serializable {

   private static final long serialVersionUID = 3668357124757879207L;

   @ApiModelProperty(value = "Id")
   @Id
   @Column(name = "ID")
   @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "ROLE_SEQUENCE")
   @SequenceGenerator(name = "ROLE_SEQUENCE", sequenceName = "ROLE_SEQUENCE")
   private Integer id;
   
   @ApiModelProperty(value = "角色名称, 超级管理员：admin；查看角色：view；发布角色：publisher")
   @Column(name = "ROLENAME",columnDefinition = "nvarchar2")
   private String roleName;

   @ApiModelProperty(value = "角色类型")
   @Column(name = "ROLETYPE",columnDefinition = "nvarchar2")
   private String roleType;

   @Transient
   @ApiModelProperty(value = "角色权限")
   private List authorities;

   @ApiModelProperty(value = "角色描述")
   @Column(name = "DESCRIPTION",columnDefinition = "nvarchar2")
   private String description;

   @ApiModelProperty(value = "状态")
   @Column(name = "STATUS",columnDefinition = "nvarchar2")
   private String status;
   
   public Role() {
      super();
   }
   
   public Role(Integer roleId) {
      this.id = roleId;
   }
   
   /**
    * 专用于新建角色的构造器 
    */
   public Role(String roleName, String roleType, String description) {
      super();
      this.roleName = roleName;
      this.roleType = roleType;
      this.description = description;
      this.status = Status.ENABLED;
      }
}

4.Repository的方法

@Repository
public interface TestMapper extends JpaRepository {

    List findByUserNameContaining(String userName);

}

注意：@OneToOne(cascade = CascadeType.ALL,fetch = FetchType.LAZY) 懒加载会导致查询失败