No transaction is currently active问题

Exception Description: No transaction is currently active] with root cause
java.lang.IllegalStateException: 
Exception Description: No transaction is currently active
	at org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.rollback(EntityTransactionImpl.java:178)
	at com.game.common.db.dao.IDaoSave.save(IDaoSave.java:56)
	at com.game.common.entityProxy.DBProxy.insert(DBProxy.java:48)
	at com.game.common.entityProxy.CacheProxy.insert(CacheProxy.java:26)
	at com.game.module.chat.ChatService.lambda$1(ChatService.java:322)

我今天遇到的问题，仔细查找问题是插入时主键重复了。。。