加载 spring-boot 和 spring-data-jpa 时,Hibernate 无法加载 JPA 2.1 转换器 [英] Hibernate fails to load JPA 2.1 Converter when loaded with spring-boot and spring-data-jpa
问题描述
我有一个用于 UUID 的自定义转换器,可以将其转换为字符串而不是二进制:
I have a custom converter for UUID to transfer it to a string instead a binary:
package de.kaiserpfalzEdv.commons.jee.db;
import javax.persistence.AttributeConverter;
import javax.persistence.Converter;
import java.util.UUID;
@Converter(autoApply = true)
public class UUIDJPAConverter implements AttributeConverter<UUID, String> {
@Override
public String convertToDatabaseColumn(UUID attribute) {
return attribute.toString();
}
@Override
public UUID convertToEntityAttribute(String dbData) {
return UUID.fromString(dbData);
}
}
转换器(我有一些其他的特别用于时间/日期处理)驻留在库 .jar 文件中.
The converters (i have some other espacially for time/date handling) reside in a library .jar file.
然后我在 .jar 文件中有实体.喜欢这个:
Then I have entities in a .jar file. Like this one:
package de.kaiserpfalzEdv.office.core.security;
import de.kaiserpfalzEdv.commons.jee.db.OffsetDateTimeJPAConverter;
import de.kaiserpfalzEdv.commons.jee.db.UUIDJPAConverter;
import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import javax.persistence.Column;
import javax.persistence.Convert;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Table;
import javax.validation.constraints.NotNull;
import java.io.Serializable;
import java.time.OffsetDateTime;
import java.time.ZoneId;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import java.util.UUID;
@Entity
@Table(
name = "tickets"
)
public class SecurityTicket implements Serializable {
private final static ZoneId TIMEZONE = ZoneId.of("UTC");
private final static long DEFAULT_TTL = 600L;
private final static long DEFAULT_RENEWAL = 600L;
@Id @NotNull
@Column(name = "id_", length=50, nullable = false, updatable = false, unique = true)
@Convert(converter = UUIDJPAConverter.class)
private UUID id;
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "account_id_", nullable = false, updatable = false, unique = true)
private Account account;
@Convert(converter = OffsetDateTimeJPAConverter.class)
@Column(name = "created_", nullable = false, updatable = false)
private OffsetDateTime created;
@Convert(converter = OffsetDateTimeJPAConverter.class)
@Column(name = "validity_", nullable = false, updatable = false)
private OffsetDateTime validity;
@Deprecated
public SecurityTicket() {
}
public SecurityTicket(@NotNull final Account account) {
id = UUID.randomUUID();
this.account = account;
created = OffsetDateTime.now(TIMEZONE);
validity = created.plusSeconds(DEFAULT_TTL);
}
public void renew() {
validity = OffsetDateTime.now(TIMEZONE).plusSeconds(DEFAULT_RENEWAL);
}
public boolean isValid() {
OffsetDateTime now = OffsetDateTime.now(TIMEZONE);
System.out.println(validity.toString() + " is hopefully after " + now.toString());
return validity.isAfter(now);
}
public UUID getId() {
return id;
}
public OffsetDateTime getValidity() {
return validity;
}
public String getAccountName() {
return account.getAccountName();
}
public String getDisplayName() {
return account.getDisplayName();
}
public Set<String> getRoles() {
HashSet<String> result = new HashSet<>();
account.getRoles().forEach(t -> result.add(t.getDisplayNumber()));
return Collections.unmodifiableSet(result);
}
public Set<String> getEntitlements() {
return Collections.unmodifiableSet(new HashSet<>());
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (obj == this) {
return true;
}
if (obj.getClass() != getClass()) {
return false;
}
SecurityTicket rhs = (SecurityTicket) obj;
return new EqualsBuilder()
.append(this.id, rhs.id)
.isEquals();
}
@Override
public int hashCode() {
return new HashCodeBuilder()
.append(id)
.toHashCode();
}
@Override
public String toString() {
return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE)
.append("id", id)
.append("account", account)
.append("validity", validity)
.toString();
}
}
当通过 maven 和 testng 运行集成测试时,数据库工作得很好.但是当我启动应用程序(第三个 .jar 文件)时,我得到一个令人讨厌的异常,归结为:
When running integration tests via maven and testng the database works quite fine. But when I start the application (the third .jar file), I get a nasty exception which boils down to:
Caused by: org.hibernate.HibernateException: Wrong column type in kpoffice.tickets for column id_. Found: varchar, expected: binary(50)
at org.hibernate.mapping.Table.validateColumns(Table.java:372)
at org.hibernate.cfg.Configuration.validateSchema(Configuration.java:1338)
at org.hibernate.tool.hbm2ddl.SchemaValidator.validate(SchemaValidator.java:175)
at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:525)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1859)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:852)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:845)
at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.withTccl(ClassLoaderServiceImpl.java:398)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:844)
at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:60)
at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:343)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:318)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1625)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1562)
... 120 more
转换的自动应用不起作用.我试图将转换器注释到类和属性本身.但是没有使用转换器.但是当我通过 hibernate 特定的注释添加 hibernate UUID 类型时,hibernate 抱怨它不能有一个转换器和一个相同属性的 hibernate 类型定义.所以hibernate读取转换器配置.
The autoApply of convert does not work. I tried to annotate the converter to the class and to the attribute itself. But the converter is not used. But when I added the hibernate UUID type via hibernate specific annotation hibernate complaint that it can't have a converter and a hibernate type definition for the same attribute. So hibernate reads the converter configuration.
使用 envers 时,JPA 2.1 转换器不起作用.但我的软件中不使用 envers.
When using envers, the JPA 2.1 converter don't work. But I don't use envers in my software.
我希望有人知道我做错了什么......
I hope there is someone out there who knows what I'm doing wrong ...
推荐答案
Andy Wilkinson 给出了正确答案.阅读规范在很多时候都有帮助.
Andy Wilkinson gave the correct answer. Reading the spec helps in a lot of times.
JPA 2.1 转换器不适用于 @Id
注释属性.
JPA 2.1 Converters are not applied to @Id
annotated attributes.
谢谢安迪.
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