每当我尝试从一个jpa调用中退出的实体列表中取出实体数组时,我都会收到一个转换异常。例如...将对象数组转换为JPA实体数组?
QuickLaunch[] qLaunchArr = null;
List<QuickLaunch> listQL = null;
try
{
System.out.println("testing 1..2..3");
//qLaunchArr
listQL = emf.createNamedQuery("getQuickLaunch").getResultList();
Object[] objArr = listQL.toArray();
//System.out.println(listQL.size());
qLaunchArr = (QuickLaunch[]) listQL.toArray();
}
catch (Exception e)
{
System.out.println("Bull Hockey!!!! I can't believe it's not butter!: "+e.toString());
}
[Ljava.lang.Object; incompatible with [Lcom.upmc.esdm.messaging.entities.QuickLaunch;
那是在我的服务器日志...(我用WID) ,我也得到这个例外...
commonj.connector.runtime.DataHandlerException: CWLAP0507E: The response bean class for java class method GetAllQuickLaunchComponents cannot be created. Reason java.lang.IllegalArgumentException: argument type mismatch.
你得到一个classCastException,但不打扰引用实际的异常和消息?尼斯。 – DataNucleus 2012-04-13 12:28:47
嗯,我有点希望这是一种常见的事情......但我会根据您的要求发布例外情况。 – SoftwareSavant 2012-04-13 12:43:26