Spring引导数据JPA与hibernate映射

Question

我在Spring Boot项目中与JPA联系。我坚持many-to-many和users之间的映射roles关系。我使用持久性工具根据模式表生成java类。

表USERS的Sql脚本：

CREATE TABLE "MPOSML"."USERS" 
   (    "USER_ID" VARCHAR2(32 BYTE), 
    "USER_NAME" VARCHAR2(64 BYTE), 
    "PASSWORD" VARCHAR2(64 BYTE), 
    "BRANCH_ID" VARCHAR2(6 BYTE), 
    "GROUP_ID" VARCHAR2(16 BYTE), 
    "ENABLED" VARCHAR2(5 BYTE), 
    "CREATE_BY" VARCHAR2(16 BYTE), 
    "CREATED_ON" DATE, 
    "MODIFIED_BY" VARCHAR2(16 BYTE), 
    "MODIFIED_ON" DATE, 
    "VERSION_NUMBER" NUMBER(4,0), 
    "PREFERED_LOCALE" VARCHAR2(5 BYTE) DEFAULT 'en', 
    "PREFERED_THEME" VARCHAR2(20 BYTE), 
    "FAILED_ATTEMPTS" NUMBER(3,0) DEFAULT 0, 
    "CLIENT_ID" VARCHAR2(16 BYTE), 
    "TEL" VARCHAR2(30 BYTE), 
    "EMAIL" VARCHAR2(120 BYTE), 
    "C_SMS" VARCHAR2(5 BYTE) DEFAULT 'false', 
    "C_IDEVICE" VARCHAR2(5 BYTE) DEFAULT 'false', 
    "C_WEB" VARCHAR2(5 BYTE) DEFAULT 'false', 
    "C_ANDROID" VARCHAR2(5 BYTE) DEFAULT 'false', 
    "DEVICE_CODE" VARCHAR2(2000 BYTE) DEFAULT 'WEB', 
    "ISAUTHORIZE" VARCHAR2(5 BYTE), 
     CONSTRAINT "USERS_ENABLED_CHECK" CHECK ("ENABLED" IS NOT NULL) ENABLE NOVALIDATE, 
     CONSTRAINT "USERS_GROUP_ID_CHECK" CHECK ("GROUP_ID" IS NOT NULL) ENABLE NOVALIDATE, 
     CONSTRAINT "USERS_PASSWORD_CHECK" CHECK ("PASSWORD" IS NOT NULL) ENABLE NOVALIDATE, 
     CONSTRAINT "USERS_USER_NAME_CHECK" CHECK ("USER_NAME" IS NOT NULL) ENABLE NOVALIDATE, 
     CONSTRAINT "PK_USERS" PRIMARY KEY ("USER_ID", "CLIENT_ID")
  USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS 
  STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "MPOS"  ENABLE
   ) SEGMENT CREATION IMMEDIATE 
  PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
  STORAGE(INITIAL 3145728 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "MPOS" ;

sql for table ROLES

CREATE TABLE "MPOSML"."ROLES" 
   (    "ROLE_ID" VARCHAR2(16 BYTE), 
    "ROLE_NAME" VARCHAR2(64 BYTE), 
    "ENABLED" VARCHAR2(5 BYTE), 
    "CREATED_BY" VARCHAR2(16 BYTE), 
    "CREATED_ON" DATE, 
    "MODIFIED_BY" VARCHAR2(16 BYTE), 
    "MODIFIED_ON" DATE, 
    "VERSION_NUMBER" NUMBER(4,0), 
    "ROLE_GROUP" VARCHAR2(20 BYTE), 
     CONSTRAINT "ROLES_ENABLED_CHECK" CHECK ("ENABLED" IS NOT NULL) ENABLE NOVALIDATE, 
     CONSTRAINT "ROLES_ROLE_NAME_CHECK" CHECK ("ROLE_NAME" IS NOT NULL) ENABLE NOVALIDATE, 
     CONSTRAINT "ROLES_UNIQUE_KEY" UNIQUE ("ROLE_NAME")
  USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS 
  STORAGE(INITIAL 2097152 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "MPOS"  ENABLE, 
     CONSTRAINT "PK_ROLES" PRIMARY KEY ("ROLE_ID")
  USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS 
  STORAGE(INITIAL 2097152 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "MPOS"  ENABLE
   ) SEGMENT CREATION IMMEDIATE 
  PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
  STORAGE(INITIAL 3145728 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "MPOS" ;

表格USERS_ROLES的SQL

CREATE TABLE "MPOSML"."USERS_ROLES" 
   (    "USER_ID" VARCHAR2(16 BYTE), 
    "ROLE_ID" VARCHAR2(16 BYTE), 
    "SELECTED" VARCHAR2(5 BYTE), 
    "CREATED_BY" VARCHAR2(16 BYTE), 
    "CREATED_ON" DATE, 
    "MODIFIED_BY" VARCHAR2(16 BYTE), 
    "MODIFIED_ON" DATE, 
    "VERSION_NUMBER" NUMBER(4,0), 
    "CLIENT_ID" VARCHAR2(16 BYTE), 
     CONSTRAINT "USERSROLES_PRIMARY_KEY" PRIMARY KEY ("CLIENT_ID", "USER_ID", "ROLE_ID")
  USING INDEX PCTFREE 10 INITRANS 2 MAXTRANS 255 COMPUTE STATISTICS 
  STORAGE(INITIAL 131072 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "MPOS"  ENABLE, 
     CONSTRAINT "FK_USERSROLES_ROLE_ID" FOREIGN KEY ("ROLE_ID")
      REFERENCES "MPOSML"."ROLES" ("ROLE_ID") ON DELETE CASCADE ENABLE NOVALIDATE
   ) SEGMENT CREATION IMMEDIATE 
  PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING
  STORAGE(INITIAL 3145728 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
  PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT FLASH_CACHE DEFAULT CELL_FLASH_CACHE DEFAULT)
  TABLESPACE "MPOS" ;

然后，在生成java类之后，它包含3个文件：Roles，Users和UsersPK Class UsersPK

public class UsersPK implements Serializable {
    private String userId;
    private String clientId;

    @Column(name = "USER_ID")
    @Id
    public String getUserId() {
        return userId;
    }

    public void setUserId(String userId) {
        this.userId = userId;
    }

    @Column(name = "CLIENT_ID")
    @Id
    public String getClientId() {
        return clientId;
    }

    public void setClientId(String clientId) {
        this.clientId = clientId;
    }
}

类用户

@Entity
@IdClass(UsersPK.class)
public class Users {
    private String userId;
    private String userName;
    private String clientId;

    @ManyToMany
    private Set<Roles> roles;
    @JoinTable(
            name = "users_roles",
            joinColumns = @JoinColumn(name = "user_id"),
            inverseJoinColumns = @JoinColumn(name = "role_id")
    )
    public Set<Roles> getRoles() {
        return roles;
    }

    public void setRoles(Set<Roles> roles) {
        this.roles = roles;
    }
   //getter and setter
}

类角色

@Entity
public class Roles {
    private String roleId;
    private String roleName;
    private String enabled;
    private String createdBy;
    private Time createdOn;
    private String modifiedBy;
    private Time modifiedOn;
    private Long versionNumber;
    private String roleGroup;

    @ManyToMany(mappedBy = "roles")
    private Set<Users> users;

//getter & setter
}

在generate java class之后，我为many-to-many relationship添加了2 classes Users and Roles。然后，当我运行项目时，控制台日志显示：

Caused by: org.hibernate.MappingException: Could not determine type for: java.util.Set, at table: users, for columns: [org.hibernate.mapping.Column(roles)]

我在一些文章中进行了研究，发现他们的映射与我的相同，不知道这个问题会发生什么。

任何解决方案将不胜感激。谢谢和问候。