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私はSpring MVCとHibernateを初めて使い、途中で学んでいます。Spring 3とHibernate 4を使った複数のファイルアップロード
イメージをサイトにアップロードしてMySQLデータベースに保存しようとしたときにこの問題が発生しました。
私はフォトモデルのリストからなるプロジェクトモデルを持っています。各写真モデルには、実際に写真を保存する写真というフィールド（CommonsMultipartFile）があります。
ProjectModel.java
public class ProjectModel{
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private int id;
@OneToMany(fetch = FetchType.LAZY, cascade=CascadeType.ALL)
private List<PhotoModel> photos;
//getters and setters
}
PhotoModel.java
public class PhotoModel extends AbstractModel implements Serializable{
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private int id;
@Column(columnDefinition = "LONGBLOB")
private CommonsMultipartFile photo;
@ManyToOne(fetch = FetchType.LAZY)
private ProjectModel project;
//getters and setters
}
addProject.jsp
<form:input type="file" path="photos[0].photo"/>
<form:input type="file" path="photos[1].photo"/>
ProjectController.java
@RequestMapping(value="/project/add", method = {RequestMethod.GET})
public String toAddProject (Model model){
if (!model.containsAttribute(Constants.COMMAND)){
ProjectModel project = new ProjectModel();
project.setPhotos(new AutoPopulatingList<PhotoModel>(PhotoModel.class));
model.addAttribute(Constants.COMMAND, project);
}
return "/user/addProject";
}
@RequestMapping(value="/project/add", method = {RequestMethod.POST})
public String addProject Model model, @ModelAttribute("command") @Valid ProjectModel command, BindingResult result){
if(result.hasErrors()) {
model.addAttribute(Constants.COMMAND, command);
return toAddProject(model);
}
projectService.save(command);
return "redirect:/success";
}
私の問題は、jpgやjpegなどの特定の種類の画像をアップロードできますが、pngはアップロードできないことです。このようなファイルをアップロードしようとすると、エラーは次のようになります。
org.springframework.orm.hibernate4.HibernateSystemException: could not deserialize; nested exception is org.hibernate.type.SerializationException: could not deserialize
at org.springframework.orm.hibernate4.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:206)
at org.springframework.orm.hibernate4.HibernateTransactionManager.convertHibernateAccessException(HibernateTransactionManager.java:606)
at org.springframework.orm.hibernate4.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:488)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:754)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:723)
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:393)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:120)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:90)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at $Proxy32.save(Unknown Source)
at cn.javass.demo.web.controller.ProjectController.addProject(ProjectController.java:64)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at cn.javass.common.web.filter.BackURLFilter.doFilter(BackURLFilter.java:37)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:307)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)
Caused by: org.hibernate.type.SerializationException: could not deserialize
at org.hibernate.internal.util.SerializationHelper.doDeserialize(SerializationHelper.java:250)
at org.hibernate.internal.util.SerializationHelper.deserialize(SerializationHelper.java:306)
at org.hibernate.internal.util.SerializationHelper.clone(SerializationHelper.java:95)
at org.hibernate.type.descriptor.java.SerializableTypeDescriptor$SerializableMutabilityPlan.deepCopyNotNull(SerializableTypeDescriptor.java:55)
at org.hibernate.type.descriptor.java.SerializableTypeDescriptor$SerializableMutabilityPlan.deepCopyNotNull(SerializableTypeDescriptor.java:42)
at org.hibernate.type.descriptor.java.MutableMutabilityPlan.deepCopy(MutableMutabilityPlan.java:57)
at org.hibernate.type.AbstractStandardBasicType.deepCopy(AbstractStandardBasicType.java:340)
at org.hibernate.type.AbstractStandardBasicType.deepCopy(AbstractStandardBasicType.java:336)
at org.hibernate.type.TypeHelper.deepCopy(TypeHelper.java:67)
at org.hibernate.action.internal.EntityUpdateAction.execute(EntityUpdateAction.java:135)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:362)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:354)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:276)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1127)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:325)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175)
at org.springframework.orm.hibernate4.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:480)
... 53 more
Caused by: java.io.FileNotFoundException: /Users/Paddy/Documents/apache-tomcat-7.0.25/work/Catalina/localhost/Spring3Hibernate4Chinese/upload_1bc5d431_136acd506da__8000_00000013.tmp (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:120)
at org.apache.commons.fileupload.disk.DiskFileItem.readObject(DiskFileItem.java:709)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:969)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1848)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1946)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1870)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1752)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1328)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:350)
at org.hibernate.internal.util.SerializationHelper.doDeserialize(SerializationHelper.java:244)
... 72 more
一時ファイルが見つからないようです。私はSpringやHibernateで本当に何が起こっているのか分かりません。
誰かがこの問題に関して何かを照らしてくれることを願っていますか？
ありがとうございました。
誰でも助けてくれますか？心から感謝する。 – pippo
フォームのenctypeを "mulitpart/form-data"に設定し、[documentation]（http://static.springsource.org/spring/docs/3.1.x/spring-framework-reference/html/mvc）を参照してください。 .html＃mvc-multipart）があります。別の便利な[リンク]（http://www.raistudies.com/spring/spring-mvc/file-upload-spring-mvc-annotation/） – Ravi
@Raviあなたの返信をありがとう。私はenctypeを "multipart/form-data"に設定しました。私はこれを実際に試みる前にあなたが提供した例を調べました。しかしシナリオは異なります。この例では、イメージはデータベースに永続化されません。 – pippo