我正在使用 JBoss 6.1 Final,并在我的 Web 应用程序运行一段时间后收到以下错误消息(注意应用程序不会崩溃),然后是很长的堆栈跟踪。我注意到只有在有状态会话 bean 中注入了其他有状态会话 bean 时才会出现此问题。
16:10:59,769 错误 [org.jboss.ejb3.cache.simple.SimpleStatefulCache.UutSerialNumberServiceBean] 问题钝化线程:javax.ejb.EJBException:无法钝化;未能保存状态
这是有问题的有状态会话 bean...
package com.ray.TEI.ejb;
import java.io.Serializable;
import javax.ejb.Stateful;
import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;
import com.ray.TEI.model.TestProcedure;
import com.ray.TEI.model.Uut;
import com.ray.TEI.model.UutSerialNumber;
@Stateful
public class UutSerialNumberServiceBean implements Serializable {
private static final long serialVersionUID = 1L;
@PersistenceContext(unitName="jasoni", type=PersistenceContextType.EXTENDED)
protected EntityManager em;
@Inject private ExecProcedureServiceBean execProcedureServiceBean;
public boolean isDuplicateSerialNumber(Uut uut, String serialNumber) {
return ((Number)em.createNamedQuery("UutSerialNumber.getCountByUutIdAndSerialNumber")
.setParameter("uut", uut)
.setParameter("serialNumber", serialNumber)
.getSingleResult()).intValue() > 0;
}
public UutSerialNumber findUutSerialNumberByUutSerialNumberId(Integer uutSerialNumberId) {
return em.find(UutSerialNumber.class, uutSerialNumberId);
}
public UutSerialNumber editSerialNumber(Integer uutSerialNumberId, String serialNumber) {
UutSerialNumber uutSerialNumber = findUutSerialNumberByUutSerialNumberId(uutSerialNumberId);
uutSerialNumber.setSerialNumber(serialNumber);
return uutSerialNumber;
}
public UutSerialNumber createSerialNumber(Uut uut, String serialNumber) {
UutSerialNumber uutSerialNumber = new UutSerialNumber();
uutSerialNumber.setSerialNumber(serialNumber);
uutSerialNumber.setUut(uut);
uut.getSerialNumbers().add(uutSerialNumber);
em.persist(uutSerialNumber);
for (TestProcedure testProcedure : uut.getTestProcedures()) {
execProcedureServiceBean.createExecProcedure(uutSerialNumber, testProcedure);
}
return uutSerialNumber;
}
}
这是注入的有状态会话 bean...
package com.ray.TEI.ejb;
import java.io.Serializable;
import javax.ejb.Stateful;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;
import com.ray.TEI.model.ExecProcedure;
import com.ray.TEI.model.TestProcedure;
import com.ray.TEI.model.UutSerialNumber;
@Stateful
public class ExecProcedureServiceBean implements Serializable {
private static final long serialVersionUID = 1L;
@PersistenceContext(unitName="jasoni", type=PersistenceContextType.EXTENDED)
protected EntityManager em;
public ExecProcedure createExecProcedure(UutSerialNumber uutSerialNumber, TestProcedure testProcedure) {
ExecProcedure execProcedure = new ExecProcedure();
execProcedure.setUutSerialNumber(uutSerialNumber);
execProcedure.setTestProcedure(testProcedure);
execProcedure.setIterationCount(0);
em.persist(execProcedure);
return execProcedure;
}
}
有人知道这有什么问题吗?
谢谢,杰森