除了我试图用数据填充的四个表中的每一个表之外，我不太确定如何阐明这个问题，有时其中一些表只是空的。我无法预测哪些会是空的。它可以是 1 和 2，或者只是 3，或者除了一个表之外的所有表。当其中一张表未填充时，我最终会进入 rollback() catch block 。有时它们都起作用。这与某种线程中断有关。鉴于下面的代码和异常，会出现什么问题？
对象创建和存储线程:
new Thread(() -> {
/* Loop through the "primary key" incidentNumber to create list of objects in memory */
for (int i = 0; i < incidentNumberList.size(); i++) {
Incident incident = new Incident();
/* Save Incidents to Local H2 Database */
if (!(targetDateList.get(i).isEmpty())) {
try {
String targetDate = DateUtil.formatTargetDate(targetDateList.get(i));
String timeRemaining = DateUtil.getTimeRemaining(targetDateList.get(i));
try {
// Make sure no transactions are currently running to avoid JPA Error
if (!entityManager.getTransaction().isActive()) {
// Begin saving Incident objects to H2
entityManager.getTransaction().begin();
incident.setIncidentNumber(incidentNumberList.get(i));
incident.setSummary(summaryList.get(i));
incident.setRequestId(requestIdList.get(i));
incident.setPriority(priorityList.get(i));
incident.setLastModifiedDate((lastModifiedDateList.get(i)));
incident.setStatus(statusList.get(i));
incident.setTargetDate(targetDate);
incident.setTimeRemaining(timeRemaining);
incident = entityManager.merge(incident);
entityManager.getTransaction().commit();
}
} catch (Exception e) {
entityManager.getTransaction().rollback();
}
} catch (ParseException e) {
e.printStackTrace();
}
}
/* Create 4 separate lists for each priority level, i.e. Low --> Critical, to populate each of the 4 TableViews */
if (priorityList.get(i).equals(priorityType)) {
switch (priorityType) {
case "Low":
incidentObjectListGreen.add(incident);
break;
case "Medium":
incidentObjectListYellow.add(incident);
break;
case "High":
incidentObjectListOrange.add(incident);
break;
case "Critical":
incidentObjectListRed.add(incident);
break;
}
Incident finalIncident = incident;
Platform.runLater(() -> dataPriority.add(finalIncident));
}
}
}).start();
异常(exception):
Exception in thread "Thread-11" java.lang.IllegalStateException:
Exception Description: No transaction is currently active
at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.rollback(EntityTransactionImpl.java:176)
at app.controller.TableViewController.lambda$organizeTable$2(TableViewController.java:432)
at java.lang.Thread.run(Thread.java:745)
Exception in thread "Thread-10" java.lang.IllegalStateException:
Exception Description: No transaction is currently active
at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.rollback(EntityTransactionImpl.java:176)
at app.controller.TableViewController.lambda$organizeTable$2(TableViewController.java:432)
at java.lang.Thread.run(Thread.java:745)
Exception in thread "Thread-9" java.lang.IllegalStateException:
Exception Description: No transaction is currently active
at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.rollback(EntityTransactionImpl.java:176)
at app.controller.TableViewController.lambda$organizeTable$2(TableViewController.java:432)
at java.lang.Thread.run(Thread.java:745)
事件实体:
@Entity
@Table(name = "INCIDENT")
public class Incident implements Serializable {
@Id
@Column(name = "INCIDENTNUMBER")
private String incidentNumber;
@Column(name = "SUMMARY")
private String summary;
@Column(name = "REQUESTID")
private String requestId;
@Column(name = "PRIORITY")
private String priority;
@Column(name = "STATUS")
private String status;
@Column(name = "ASSIGNEE")
private String assignee;
@Column(name = "LASTMODIFIEDDATE")
private String lastModifiedDate;
@Column(name = "TARGETDATE")
private String targetDate;
@Column(name = "TIMEREMAINING")
private String timeRemaining;
public String getRequestId() {
return requestId;
}
public void setRequestId(String requestId) {
this.requestId = requestId;
}
public String getIncidentNumber() {
return incidentNumber;
}
public void setIncidentNumber(String incidentNumber) {
this.incidentNumber = incidentNumber;
}
public String getSummary() {
return summary;
}
public void setSummary(String summary) {
this.summary = summary;
}
public String getPriority() {
return priority;
}
public void setPriority(String priority) {
this.priority = priority;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public String getAssignee() {
return assignee;
}
public void setAssignee(String assignee) {
this.assignee = assignee;
}
public String getLastModifiedDate() {
return lastModifiedDate;
}
public void setLastModifiedDate(String lastModifiedDate) {
this.lastModifiedDate = lastModifiedDate;
}
public String getTargetDate() {
return targetDate;
}
public void setTargetDate(String targetDate) {
this.targetDate = targetDate;
}
public String getTimeRemaining() {
return timeRemaining;
}
public void setTimeRemaining(String timeRemaining) {
this.timeRemaining = timeRemaining;
}
}
堆栈跟踪:
java.lang.IllegalArgumentException: Object: app.model.Incident@3852db6c is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@50a1f930 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@2e557d5 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@7167a75 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@13b2cc25 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@460c35f7 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@194aa755 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@599e1650 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@3d568923 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@21623389 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@85fa696 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@19263140 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@13de5a30 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@7ed84185 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@62eea24 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@a1b8252 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@1d2a61de is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@2c52980f is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@15e2781d is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@64e2ee25 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@26aaf37f is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@5b020754 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@23c1fd3e is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@48f40902 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@38c553b0 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@6f1ddc45 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@3a66baff is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
java.lang.IllegalArgumentException: Object: app.model.Incident@3e0db801 is not a known entity type.
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4222)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at app.controller.TableViewController.lambda$organizeTable$3(TableViewController.java:430)
at java.lang.Thread.run(Thread.java:745)
最佳答案
我认为你的问题在这里:
} catch (Exception e) {
entityManager.getTransaction().rollback();
}
问题#1 - 你正在压制异常。您不打印消息，也不记录堆栈跟踪。没有什么。您只需丢弃所有可用于诊断问题的信息。
问题#2 - 您正在捕获异常。这太宽泛了。
问题 #3 - 当您调用 rollback 时，似乎没有要回滚的事务。
我希望如果您解决问题 #1 和 #2，问题 #3 的原因就会被揭示。
关于java - 线程中出现异常 "Thread-10"java.lang.IllegalStateException，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44566424/