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我有一个简单的 hibernate 示例,它有一个实体类。我向实体类添加了一个字段,我不想在数据库表中为该字段创建列。我该怎么做?
我的实体类:
@Entity
@Table(name = "person")
public class PersonEntity {
private Long id;
private String emailEntity;
private String nameEntity;
private String familyEntity;
private String cityEntity;
private String phoneEntity;
private Long orgId;
private String province;
@Id
@GeneratedValue
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
@Column(name = "email")
public String getEmailEntity() {
return emailEntity;
}
public void setEmailEntity(String emailEntity) {
this.emailEntity = emailEntity;
}
@Column(name = "name")
public String getNameEntity() {
return nameEntity;
}
public void setNameEntity(String nameEntity) {
this.nameEntity = nameEntity;
}
@Column(name = "last_name")
public String getFamilyEntity() {
return familyEntity;
}
public void setFamilyEntity(String familyEntity) {
this.familyEntity = familyEntity;
}
@Column(name = "city")
public String getCityEntity() {
return cityEntity;
}
public void setCityEntity(String cityEntity) {
this.cityEntity = cityEntity;
}
@Column(name = "phone")
public String getPhoneEntity() {
return phoneEntity;
}
public void setPhoneEntity(String phoneEntity) {
this.phoneEntity = phoneEntity;
}
@Column(name = "org_id")
public Long getOrgId() {
return orgId;
}
public void setOrgId(Long orgId) {
this.orgId = orgId;
}
public String getProvince() {
return province;
}
public void setProvince(String province) {
this.province = province;
}
}
hibernate .cfg.xml:
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/emailDB</property>
<property name="connection.username">root</property>
<property name="connection.password">123</property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">false</property>
<property name="hibernate.hbm2ddl.auto">update</property>
<!--<mapping class="net.viralpatel.hibernate.Employee"/>-->
<!--<mapping class="net.viralpatel.hibernate.PersonEntity"/>-->
<mapping class="organizationsTab.PersonEntity"/>
<mapping class="organizationsTab.OrgEntity"/>
</session-factory>
</hibernate-configuration>
'province' 字段是一个辅助字段,我不想在表中为它创建一个列。我该怎么做?
最佳答案
用@Transient注解注解字段查看更多here
关于java - 如何在mysql数据库中创建表时忽略实体类中的字段?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/28060637/
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