在插入记录后，如何通过数据库中的序列生成import static com.yourpackage.Log.*
？
Hibernate配置：
ID <hibernate-configuration>
<session-factory>
<property name="hibernate.connection.driver_class">org.firebirdsql.jdbc.FBDriver</property>
<property name="hibernate.connection.password">masterkey</property>
<property name="hibernate.connection.url">jdbc:firebirdsql:localhost/3050:FB3</property>
<property name="hibernate.connection.username">SYSDBA</property>
<property name="hibernate.dialect">org.hibernate.dialect.FirebirdDialect</property>
<property name="hibernate.connection.autocommit">false</property>
<property name="hibernate.connection.isolation">2</property>
<property name="hibernate.connection.release_mode">on_close</property>
<property name="hibernate.show_sql">true</property>
<property name="hibernate.use_sql_comments">true</property>
<property name="hibernate.default_entity_mode">pojo</property>
<property name="hibernate.current_session_context_class">thread</property>
<property name="hibernate.generate_statistics">false</property>
<property name="hibernate.hbm2ddl.auto">validate</property>
<property name="hibernate.transaction.auto_close_session">false</property>
<property name="hibernate.connection.charSet">UTF-8</property>
<property name="hibernate.c3p0.min_size">5</property>
<property name="hibernate.c3p0.max_size">10</property>
<property name="hibernate.c3p0.timeout">5</property>
<property name="hibernate.c3p0.idle_test_period">2</property>
<property name="hibernate.c3p0.acquire_increment">1</property>
<property name="javax.persistence.validation.mode">none</property>
<mapping class="com.zvpblog.OraHib.model.fb.entity.MyTable"/>
<mapping class="com.zvpblog.OraHib.model.fb.entity.Usr"/>
</session-factory>
</hibernate-configuration>
实体：
Usr我尝试使用此代码，但未成功（@Entity
@Table(name = "USR")
public class Usr {
@EmbeddedId
private UsrPK id;
@Column(name = "FNAME", columnDefinition = "VARCHAR")
private String firstName;
@Column(name = "DTMSTMP", columnDefinition = "TIMESTAMP")
private Timestamp dTmStmp;
@OneToOne(cascade = CascadeType.ALL, fetch = FetchType.LAZY)
@JoinColumn(name = "MYTABLEID")
private MyTable myTable;
public Usr() {}
public Usr(String login, String firstName) {
this.setId(new UsrPK(null, login));
this.setFirstName(firstName);
}
@Override
public String toString() {
Object[] args = { this.id.getId(), this.id.getLogin(), this.getFirstName(), this.getMyTable().getId(), getdTmStmp() };
MessageFormat text = new MessageFormat("Object: {0} [id={1}, login={2}, firstName={3}, myTableId={4}, dTmStmp={5}");
return text.format(args);
}
@Embeddable
public static class UsrPK implements Serializable {
private static final long serialVersionUID = 1L;
@Column(name = "ID", columnDefinition = "BIGINT", unique = true)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "PK")
@SequenceGenerator(name = "PK", sequenceName = "GEN_USR_ID", allocationSize = 1)
private Long id;
@Column(name = "LOGIN")
private String login;
public UsrPK() {}
public UsrPK(Long id, String login) {
this.setId(id);
this.setLogin(login);
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getLogin() {
return login;
}
public void setLogin(String login) {
this.login = login;
}
}
public UsrPK getId() {
return id;
}
public void setId(UsrPK id) {
this.id = id;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public Timestamp getdTmStmp() {
return dTmStmp;
}
public void setdTmStmp(Timestamp dTmStmp) {
this.dTmStmp = dTmStmp;
}
public MyTable getMyTable() {
return myTable;
}
public void setMyTable(MyTable myTable) {
this.myTable = myTable;
}
}
获取NULL）：
id控制台输出：
插入前 - ＆gt;＆gt;＆gt; null |登录＆lt;＆lt;＆lt; -
Hibernate：/ * insert com.zvpblog.OraHib.model.fb.entity.Usr * / insert into USR（DTMSTMP，FNAME，MYTABLEID，ID，LOGIN）值（？，？，？，？，？）< / p>
插入后 - >＆gt;＆gt;＆gt; null |登录＆lt;＆lt;＆lt; -