最近將項目由mybatis 修改爲 jpa,遇到一個問題.
描述: 實體中的成員屬性的類型是數組,在mybatis的xml中對該數組類型的屬性進行了處理,而在jpa中,認爲數組是(一對一或者一對多或者多對多)的關係映射
提示如下錯誤: 意思是無法進行序列化,在網上查找n多資料都說要加 關係註解,ranbinluan
org.springframework.orm.jpa.JpaSystemException: could not deserialize; nested exception is org.hibernate.type.SerializationException: could not deserialize
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:314)
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:225)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:527)
at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61)
at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:153)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:135)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:61)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212)
at com.sun.proxy.$Proxy140.findAll(Unknown Source)
at org.linlinjava.litemall.db.service.LitemallGoodsProductService.queryByGid(LitemallGoodsProductService.java:24)
at org.linlinjava.litemall.wx.web.WxGoodsController.detail(WxGoodsController.java:88)
at org.linlinjava.litemall.wx.web.WxGoodsController$$FastClassBySpringCGLIB$$7accc3f4.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.validation.beanvalidation.MethodValidationInterceptor.invoke(MethodValidationInterceptor.java:112)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688)
at org.linlinjava.litemall.wx.web.WxGoodsController$$EnhancerBySpringCGLIB$$50a0ae9e.detail(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449)
at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365)
at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90)
at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83)
at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387)
at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362)
at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:800)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1471)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.hibernate.type.SerializationException: could not deserialize
at org.hibernate.internal.util.SerializationHelper.doDeserialize(SerializationHelper.java:243)
at org.hibernate.internal.util.SerializationHelper.deserialize(SerializationHelper.java:287)
at org.hibernate.type.descriptor.java.SerializableTypeDescriptor.fromBytes(SerializableTypeDescriptor.java:139)
at org.hibernate.type.descriptor.java.SerializableTypeDescriptor.wrap(SerializableTypeDescriptor.java:114)
at org.hibernate.type.descriptor.java.SerializableTypeDescriptor.wrap(SerializableTypeDescriptor.java:28)
at org.hibernate.type.descriptor.sql.VarbinaryTypeDescriptor$2.doExtract(VarbinaryTypeDescriptor.java:60)
at org.hibernate.type.descriptor.sql.BasicExtractor.extract(BasicExtractor.java:47)
at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:261)
at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:257)
at org.hibernate.type.AbstractStandardBasicType.nullSafeGet(AbstractStandardBasicType.java:247)
at org.hibernate.type.AbstractStandardBasicType.hydrate(AbstractStandardBasicType.java:333)
at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:2868)
at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1747)
at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1673)
at org.hibernate.loader.Loader.getRow(Loader.java:1562)
at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:732)
at org.hibernate.loader.Loader.processResultSet(Loader.java:991)
at org.hibernate.loader.Loader.doQuery(Loader.java:949)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:341)
at org.hibernate.loader.Loader.doList(Loader.java:2692)
at org.hibernate.loader.Loader.doList(Loader.java:2675)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2507)
at org.hibernate.loader.Loader.list(Loader.java:2502)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:502)
at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:392)
at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:216)
at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1490)
at org.hibernate.query.internal.AbstractProducedQuery.doList(AbstractProducedQuery.java:1445)
at org.hibernate.query.internal.AbstractProducedQuery.list(AbstractProducedQuery.java:1414)
at org.hibernate.query.Query.getResultList(Query.java:146)
at org.hibernate.query.criteria.internal.compile.CriteriaQueryTypeQueryAdapter.getResultList(CriteriaQueryTypeQueryAdapter.java:72)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.findAll(SimpleJpaRepository.java:440)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:377)
at org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:200)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:629)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:593)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:578)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:59)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:139)
... 89 more
Caused by: java.io.StreamCorruptedException: invalid stream header: 5B22E6A0
at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:862)
at java.io.ObjectInputStream.<init>(ObjectInputStream.java:354)
at org.hibernate.internal.util.SerializationHelper$CustomObjectInputStream.<init>(SerializationHelper.java:309)
at org.hibernate.internal.util.SerializationHelper$CustomObjectInputStream.<init>(SerializationHelper.java:299)
at org.hibernate.internal.util.SerializationHelper.doDeserialize(SerializationHelper.java:218)
... 137 more
解決辦法
- 方案一 修改數組類型爲基本類型
- 方案二 修改get set 方法
# 例如我的實體包含一個這樣的屬性
private String[] specifications;
# 修改後如下:
public List<String> getSpecifications() {
return JSON.parseArray(specifications,String.class);
}
public void setSpecifications(List<String> specifications) {
this.specifications = JSON.toJSONString(specifications);
}
private String specifications;
- 方案四(三在下邊) 使用AttributeConverter進行全局的類型轉換
// 參考 Jsr310JpaConverters
package org.springframework.data.jpa.convert.threeten;
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.util.Date;
import javax.persistence.AttributeConverter;
import javax.persistence.Converter;
import org.springframework.data.convert.Jsr310Converters.DateToInstantConverter;
import org.springframework.data.convert.Jsr310Converters.DateToLocalDateConverter;
import org.springframework.data.convert.Jsr310Converters.DateToLocalDateTimeConverter;
import org.springframework.data.convert.Jsr310Converters.DateToLocalTimeConverter;
import org.springframework.data.convert.Jsr310Converters.InstantToDateConverter;
import org.springframework.data.convert.Jsr310Converters.LocalDateTimeToDateConverter;
import org.springframework.data.convert.Jsr310Converters.LocalDateToDateConverter;
import org.springframework.data.convert.Jsr310Converters.LocalTimeToDateConverter;
import org.springframework.data.convert.Jsr310Converters.StringToZoneIdConverter;
import org.springframework.data.convert.Jsr310Converters.ZoneIdToStringConverter;
import org.springframework.lang.Nullable;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
/**
* JPA 2.1 converters to turn JSR-310 types into legacy {@link Date}s. To activate these converters make sure your
* persistence provider detects them by including this class in the list of mapped classes. In Spring environments, you
* can simply register the package of this class (i.e. {@code org.springframework.data.jpa.convert.threeten}) as package
* to be scanned on e.g. the {@link LocalContainerEntityManagerFactoryBean}.
*
* @author Oliver Gierke
* @author Kevin Peters
*/
public class Jsr310JpaConverters {
@Converter(autoApply = true)
public static class LocalDateConverter implements AttributeConverter<LocalDate, Date> {
@Nullable
@Override
public Date convertToDatabaseColumn(LocalDate date) {
return date == null ? null : LocalDateToDateConverter.INSTANCE.convert(date);
}
@Nullable
@Override
public LocalDate convertToEntityAttribute(Date date) {
return date == null ? null : DateToLocalDateConverter.INSTANCE.convert(date);
}
}
@Converter(autoApply = true)
public static class LocalTimeConverter implements AttributeConverter<LocalTime, Date> {
@Nullable
@Override
public Date convertToDatabaseColumn(LocalTime time) {
return time == null ? null : LocalTimeToDateConverter.INSTANCE.convert(time);
}
@Nullable
@Override
public LocalTime convertToEntityAttribute(Date date) {
return date == null ? null : DateToLocalTimeConverter.INSTANCE.convert(date);
}
}
@Converter(autoApply = true)
public static class LocalDateTimeConverter implements AttributeConverter<LocalDateTime, Date> {
@Nullable
@Override
public Date convertToDatabaseColumn(LocalDateTime date) {
return date == null ? null : LocalDateTimeToDateConverter.INSTANCE.convert(date);
}
@Nullable
@Override
public LocalDateTime convertToEntityAttribute(Date date) {
return date == null ? null : DateToLocalDateTimeConverter.INSTANCE.convert(date);
}
}
@Converter(autoApply = true)
public static class InstantConverter implements AttributeConverter<Instant, Date> {
@Nullable
@Override
public Date convertToDatabaseColumn(Instant instant) {
return instant == null ? null : InstantToDateConverter.INSTANCE.convert(instant);
}
@Nullable
@Override
public Instant convertToEntityAttribute(Date date) {
return date == null ? null : DateToInstantConverter.INSTANCE.convert(date);
}
}
@Converter(autoApply = true)
public static class ZoneIdConverter implements AttributeConverter<ZoneId, String> {
@Nullable
@Override
public String convertToDatabaseColumn(ZoneId zoneId) {
return zoneId == null ? null : ZoneIdToStringConverter.INSTANCE.convert(zoneId);
}
@Nullable
@Override
public ZoneId convertToEntityAttribute(String zoneId) {
return zoneId == null ? null : StringToZoneIdConverter.INSTANCE.convert(zoneId);
}
}
}
- 方案三(推薦) 使用jpa 提供AttributeConverter實體屬性類型轉換器
/**
* 字符串數組 字符串 互相轉化
*/
public class StrArray2Str implements AttributeConverter<String[], String> {
@Override
public String convertToDatabaseColumn(String[] strings) {
return JSON.toJSONString(strings);
}
@Override
public String[] convertToEntityAttribute(String s) {
return JSON.parseArray(s, String.class).toArray(new String[0]);
}
}
// 然後 實體中的數組就可以這樣寫了
@Convert(converter = StrArray2Str.class)
private String[] specifications;
- 方案三(優化)
// 涉及到類型轉換可能有很多,例如 int 數組轉 string 等等 調整爲內部類
import com.alibaba.fastjson.JSON;
import javax.persistence.AttributeConverter;
public class JpaAttributeConverter {
/**
* 字符串數組 字符串 互轉
*/
public static class StrArray2Str implements AttributeConverter<String[], String> {
@Override
public String convertToDatabaseColumn(String[] strings) {
return JSON.toJSONString(strings);
}
@Override
public String[] convertToEntityAttribute(String s) {
return JSON.parseArray(s, String.class).toArray(new String[0]);
}
}
/**
* int 數組 string 互轉
*/
public static class intArray2Str implements AttributeConverter<Integer[], String> {
@Override
public String convertToDatabaseColumn(Integer[] attribute) {
return JSON.toJSONString(attribute);
}
@Override
public Integer[] convertToEntityAttribute(String dbData) {
return JSON.parseArray(dbData, Integer.class).toArray(new Integer[0]);
}
}
}
// 實體中就可以這樣寫
@Convert(converter = JpaAttributeConverter.StrArray2Str.class)
private String[] gallery;