停止tomcat时使用spring服务获取java.io.NotSerializableException

我将Spring3与JSF2一起使用 我用SpringBean替换了JSF管理的bean，在bean之上添加了：

@Component("mybean")
@Scope("session")

在我的bean中，我正在自动连接一个spring服务（它是用注释@service声明的）

好吧，这项服务一切正常，但当我试图阻止Tomcat6时，我的spring服务出现了这个异常

java.io.NotSerializableException

你知道我为什么会遇到这个异常，以及如何解决它吗

更新：

在使我的服务实现可序列化后，有时会出现以下异常：

java.lang.IllegalStateException: Cannot deserialize BeanFactory with id org.springframework.web.context.WebApplicationContext:/spring_faces: no factory registered for this id
    at org.springframework.beans.factory.support.DefaultListableBeanFactory$SerializedBeanFactoryReference.readResolve(DefaultListableBeanFactory.java:972)
    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.invokeReadResolve(ObjectStreamClass.java:1061)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1762)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
    at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:480)
    at org.springframework.aop.support.AbstractBeanFactoryPointcutAdvisor.readObject(AbstractBeanFactoryPointcutAdvisor.java:98)
    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:974)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
    at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:480)
    at org.springframework.aop.framework.AdvisedSupport.readObject(AdvisedSupport.java:550)
    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:974)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
    at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
    at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
    at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
    at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
    at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1496)
    at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:998)
    at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:394)
    at org.apache.catalina.session.StandardManager.load(StandardManager.java:321)
    at org.apache.catalina.session.StandardManager.start(StandardManager.java:648)
    at org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:446)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4631)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
    at org.apache.catalina.core.StandardService.start(StandardService.java:525)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
    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.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

---

请告知。

您会遇到此异常，因为该类未实现

可序列化

。Tomcat将当前运行的

HttpSession

对象（包括其所有属性）序列化到磁盘，以便在重新启动/重新部署时，这些对象会在循环后恢复。会话范围的对象存储为

HttpSession

的属性，因此它们需要实现

Serializable

，以便在重新启动/重新部署后继续生存

如果要使它们可序列化，请相应地实施：

public class YourSpringService implements Serializable {}

否则，只需忽略异常或关闭Tomcat配置中的磁盘序列化会话

---

请注意，同样的情况也适用于JSF视图/会话范围的bean。

查看错误，tomcat似乎正在尝试序列化整个spring上下文，我认为这可能是由于您在服务上实现了Serializable。我在想也许你需要这样做，我对JSF不太了解，但我对作用域bean的理解让我想，你可能需要这样的东西

    @Component
    @Scope(proxyMode=ScopedProxyMode.TARGET_CLASS, value="session")
    public class MyBean implements Serializable
    {
       //no need to implement serializable on service
       @Autowired(required=true)
       private MyService service;
    }

---

好吧，最后我能使它工作得很好，如下所示：

1-服务：

@Service
@Scope("singleton")
public class PersonService{

}

 @Component("person")
   @Scope("session")
   public class PersonBean implements Serializable{

   @Inject
   private PersonService personService;

   }

2-Spring管理的Bean:

@Service
@Scope("singleton")
public class PersonService{

}

 @Component("person")
   @Scope("session")
   public class PersonBean implements Serializable{

   @Inject
   private PersonService personService;

   }

---

等待您的反馈。

我不得不使用

readObject（）

+

static ApplicationContext

hack来解决这个问题：

@Component
@Scope(value = SCOPE_SESSION, proxyMode = ScopedProxyMode.TARGET_CLASS)
public class FlashMessages implements Serializable {    

    @Autowired
    transient private SomeBean someBean;

    private void readObject(ObjectInputStream ois) throws ClassNotFoundException, IOException {
        ois.defaultReadObject();
        // restore someBean field on deserialization
        SpringUtils.getContext().getAutowireCapableBeanFactory().autowireBean(this);
    }

}

@Component
public class SpringUtils implements ApplicationContextAware {

    static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
        SpringUtils.applicationContext = applicationContext;
    }

    public static ApplicationContext getContext() {
        return applicationContext;
    }

}

---

所以问题是，我的SpringBean（jsf托管bean的替代品）是会话作用域并实现可序列化的，这个bean中使用的任何spring服务也必须实现可序列化的？如果您需要它们可序列化，那么是的。否则，将其标记为瞬态。我只是不保证Spring在恢复后会重新注入它们，这超出了我的知识范围（我不做Spring）。我认为问题在于@autowired of service，我认为如果您将服务设置为临时服务，那么服务将不会被序列化（因为您无法以任何方式真正序列化它，它只是一个prox）你们说的让服务暂时化是什么意思？@Jsword:use

transient

关键字。例如，

private transient Foo Foo Foo。这将跳过对属性的序列化。以下内容是什么意思proxyMode=ScopedProxyMode.TARGET_类，以及Autowiring中required=true的必要条件当我尝试此操作时，会出现异常：org.springframework.aop.framework.aopconfigeException:无法代理目标类，因为CGLIB2不可用。将CGLIB添加到类路径或指定代理接口。您不需要required is true（只是指示容器此依赖项不能忽略）。默认情况下，您需要此依赖项CGLIB cglib2.2.2，如果将CGLIB放入类路径中，您可以使用JDK或CGLIB创建代理。spring使用CGLIB创建prxoy。好的，我会试试，但您没有告诉我代码的意思：proxyMode=ScopedProxyMode.TARGET\u CLASSRead这一节3.4.4.5。从下面的文档中