问题
I need to configure @TypeDefs for use custom @Type on package level. When I configured it following manner I am getting ClassNotFoundException. But when I put @TypeDefs on the class level it is working fine.
I have found similar kind of stackoverflow post but I haven't any idea to how to configure <resource package="com.foo.bar.thepackage"/> entry with my application-context.xml file.
According some post (as bellow), noted this a Spring related bug
I believe this is due to a bug in Spring, where it doesn't scan the annotations in package-info, but only those on classes annotated with @Entity, @Embeddable, or @MappedSuperclass. See https://jira.springsource.org/browse/SPR-8589.
Can any one help me to resolve this issue. Thanks.
@TypeDefs declaration with package-info.java
@TypeDefs
({
@TypeDef(
name="encryptedString",
typeClass=EncryptedStringType.class,
parameters={
@Parameter(name="encryptorRegisteredName",
value="abcHibernateStringEncryptor")
}
)
})
package com.abc.core.model;
import org.hibernate.annotations.TypeDef;
import org.hibernate.annotations.TypeDefs;
import org.hibernate.annotations.Parameter;
import org.jasypt.hibernate4.type.EncryptedStringType;
application-context.xml
<!-- ############################### General Configurations #################################################### -->
<!-- Enable annotation-driven configuration and auto-detection -->
<context:annotation-config/>
<!-- Enable Spring configuration-detection -->
<context:spring-configured/>
<!-- Scans the classpath of this application for @Components to deploy as beans -->
<context:component-scan base-package="com.abc"/>
<!-- Configure property placeholders for environment-specific properties customization -->
<context:property-placeholder ignore-resource-not-found="true" location="classpath*:/project.properties"/>
<!-- ############################### Persistence Related Configurations ######################################## -->
<!-- JPA adapter -->
<bean id="hibernateJpaVendorAdapter" class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
</bean>
<!-- EntityManager factory -->
<bean id="entityManagerFactory"
class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="jpaVendorAdapter" ref="hibernateJpaVendorAdapter" />
<property name="packagesToScan" value="com.abc.core.model" />
<property name="jpaProperties">
<props>
<prop key="hibernate.ejb.naming_strategy">org.hibernate.cfg.ImprovedNamingStrategy</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.PostgresPlusDialect</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.show_sql">false</prop>
<prop key="hibernate.format_sql">false</prop>
<prop key="hibernate.use_sql_comments">false</prop>
<prop key="hibernate.temp.use_jdbc_metadata_defaults">false</prop>
<prop key="hibernate.connection.autocommit">false</prop>
</props>
</property>
</bean>
<!-- Transaction manager -->
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="entityManagerFactory" />
</bean>
<!-- JPA repositories -->
<jpa:repositories base-package="com.abc"
transaction-manager-ref="transactionManager"
entity-manager-factory-ref="entityManagerFactory"/>
<!-- Use @Transactional annotation on methods -->
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/>
<!-- ## JASYPT related configurations ## -->
<!-- jasypt encryptor for string -->
<bean id="abcStringEncryptor"
class="org.jasypt.encryption.pbe.StandardPBEStringEncryptor">
<property name="algorithm">
<value>PBEWithMD5AndDES</value>
</property>
<property name="password">
<value>XXX</value>
</property>
</bean>
<!-- hibernate encryptor for string -->
<bean id="theHibernateStringEncryptor"
class="org.jasypt.hibernate4.encryptor.HibernatePBEStringEncryptor">
<property name="registeredName">
<value>abcHibernateStringEncryptor</value>
</property>
<property name="encryptor">
<ref bean="abcStringEncryptor" />
</property>
</bean>
Entity class with custom @Type mapping
package com.stee.rcm.core.model;
@Entity
@Table(name = "trail")
public class Trail implements Serializable {
@Id
@GeneratedValue
@Column(name = "ID")
private Integer id;
@Type(type="encryptedString")
@Column(name = "DESCRIPTION")
private String description;
}
Exception
Caused by: java.lang.ClassNotFoundException : encryptedString
回答1:
I too faced same issue, It seems spring have some issue to scan TypeDef when they are at package-info.java class.
Declaring resource in the configuration is nothing but packagesToScan.You have already used in your configuration and even this does not help in scanning TypeDefs.
<resource package="com.foo.bar.thepackage"/>
We can go with any of below approaches
- Declare TypeDef in each pojo classes(where ever userType/CustomType is used).
- Explicitly register CustomType to hibernate configuration.This can be done in two ways:
- Registering CustomType programmatic. configuration.registerTypeOverride(new EncryptedStringType(),new String[]{"encryptedString"});
- Declaring TypeDef in session factory bean configuration and extending local session factory bean.
Spring.xml :
<bean id="DateTypeSessionFactory" class="com.runtime.data.factory.TypeResolverSessionFactoryBean">
<property name="dataSource" ref="DateTypeDataSource"/>
<property name="packagesToScan" value="com.p27.datetype"/>
<property name="customTypes">
<array value-type="com.runtime.data.CustomType">
<ref bean="dateTimeCustomType"/>
</array>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">
${DateType.dialect}
</prop>
<prop key="hibernate.show_sql">
false
</prop>
<prop key="hibernate.globally_quoted_identifiers">
false
</prop>
<prop key="hibernate.hbm2ddl.auto">
${DateType.hbm2ddl}
</prop>
</props>
</property>
</bean>
<bean id="persistentLocalDateTimeType" class="com.studio.common.data.type.WMPersistentLocalDateTime"/>
<bean id="dateTimeCustomType" class="com.runtime.data.CustomType">
<property name="type" ref="persistentLocalDateTimeType"/>
<property name="keys">
<list>
<value>DateTime</value>
<value>org.joda.time.LocalDateTime</value>
</list>
</property>
</bean>
public class CustomType {
private UserType type;
private String[] keys;
//getters & setters
}
SessionFactoryBean :
public class TypeResolverSessionFactoryBean extends LocalSessionFactoryBean {
private CustomType[] customTypes;
@Override
protected SessionFactory buildSessionFactory(LocalSessionFactoryBuilder sfb) {
if(customTypes != null) {
registerCustomTypes(sfb);
}
return sfb.buildSessionFactory();
}
protected void registerCustomTypes(LocalSessionFactoryBuilder sfb) {
for (CustomType customType : customTypes) {
sfb.registerTypeOverride(customType.getType(), customType.getKeys());
}
}
public void setCustomTypes(CustomType[] customTypes) {
this.customTypes = customTypes;
}
}
来源：https://stackoverflow.com/questions/28358609/how-to-configure-package-level-typedefs-with-spring-hibernate